2025 CHEVROLET TRAVERSE

STRUCTURE:BODY

The antenna cover (shark fin) on the roof of the vehicle detached while driving and flew off. Looking at the piece that flew off, the clips that are made to clip in and keep it attached to the roof broke off somehow and seemed to be very weak where some were still attached. The safety of other vehicles are put at risk by it being unexpected flying debris and could potentially hit a vehicle/motorcycle following behind or debris is the roadway. My dealer specifically has not seen many, but when researching online, it’s is a very common issue with the 2024 and 2025 Chevrolet Traverse. My vehicle was brought to my dealership and a person from the body shop will attempt to attach it back for a temporary fix until the issue can be resolved and not have to pay hundreds of dollars for something that the vehicle owner had no control over breaking. There was no warning of this attachment breaking off, nor should it be something that a vehicle owner should have to worry about replacing six months in of purchasing a brand new vehicle.

FORWARD COLLISION AVOIDANCE: WARNINGS

Master cylinder needing replaced confirmed by dealer. ABS. Traction control forward emergency braking system service lights appear on dash and the systems are disabled saying service soon. Adaptive cruise control disabled super cruise disabled.

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

Master cylinder needing replaced confirmed by dealer. ABS. Traction control forward emergency braking system service lights appear on dash and the systems are disabled saying service soon. Adaptive cruise control disabled super cruise disabled.

SERVICE BRAKES

Master cylinder needing replaced confirmed by dealer. ABS. Traction control forward emergency braking system service lights appear on dash and the systems are disabled saying service soon. Adaptive cruise control disabled super cruise disabled.

SERVICE BRAKES

Master cylinder went out with only 5400 miles

ELECTRICAL SYSTEM

Master cylinder went out with only 5400 miles

ELECTRICAL SYSTEM:12V/24V/48V BATTERY

The contact owns a 2025 Chevrolet Traverse. The contact stated that while driving at approximately 45 MPH through a green light, another vehicle failed to yield at 50 MPH for a red light due to being impaired, causing a collision in which the contact’s vehicle was T-boned. No warning lights were illuminated before the crash. The front and side curtain air bags failed to deploy. The contact reported that no injuries were immediately sustained, and no medical attention was provided at the scene. However, the contact was later transported to a local emergency facility and diagnosed with a back injury. A police report was filed.. The vehicle was towed to an independent mechanic, where it was diagnosed that the air bags, service brakes, and battery of the vehicle had failed and needed to be replaced. The vehicle was not repaired. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure, and a case was opened. The failure mileage was approximately 13,000.

SERVICE BRAKES

The contact owns a 2025 Chevrolet Traverse. The contact stated that while driving at approximately 45 MPH through a green light, another vehicle failed to yield at 50 MPH for a red light due to being impaired, causing a collision in which the contact’s vehicle was T-boned. No warning lights were illuminated before the crash. The front and side curtain air bags failed to deploy. The contact reported that no injuries were immediately sustained, and no medical attention was provided at the scene. However, the contact was later transported to a local emergency facility and diagnosed with a back injury. A police report was filed.. The vehicle was towed to an independent mechanic, where it was diagnosed that the air bags, service brakes, and battery of the vehicle had failed and needed to be replaced. The vehicle was not repaired. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure, and a case was opened. The failure mileage was approximately 13,000.

AIR BAGS

The contact owns a 2025 Chevrolet Traverse. The contact stated that while driving at approximately 45 MPH through a green light, another vehicle failed to yield at 50 MPH for a red light due to being impaired, causing a collision in which the contact’s vehicle was T-boned. No warning lights were illuminated before the crash. The front and side curtain air bags failed to deploy. The contact reported that no injuries were immediately sustained, and no medical attention was provided at the scene. However, the contact was later transported to a local emergency facility and diagnosed with a back injury. A police report was filed.. The vehicle was towed to an independent mechanic, where it was diagnosed that the air bags, service brakes, and battery of the vehicle had failed and needed to be replaced. The vehicle was not repaired. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure, and a case was opened. The failure mileage was approximately 13,000.

SERVICE BRAKES

Went out for lunch and the following warning lights popped up on my dash, "Brake", the ABS light was lit up, service brake assist and service ESC all popped up. Had my truck towed to lexington park chevy because it said it was not safe to drive

SERVICE BRAKES

Normal evening running errands and brake pedal went to the floor, unable to stop and starting rolling into oncoming traffic. Put transmission in Park, then reverse to get out the main highway and back to the service road, car would continue to roll. Service ESC, Service Brake Assist, Engine light and more popped up on dash. Vehicle had to get towed. This could have been a very dangerous situation. Being told the Master Cylinder needs to be replaced. Part is ordered with no delivery date.

UNKNOWN OR OTHER

The roof-mounted antenna (shark fin style) detached from my 2025 Chevrolet Traverse (approx mileage:7,500) during normal use. This should not occur on a new vehicle, and I have seen multiple other owners of the same model year reporting the same issue. If the antenna were to detach while driving, it could create a safety hazard to other vehicles on the road. My vehicle is scheduled for dealer inspection, but I believe this should be documented as a potential defect.

STRUCTURE:BODY

While driving with the front windows all the way up and the back windows all the way down at 60mph or higher the door panels vibrate real bad like they want pop off from the frame of the car, which is unacceptable. You should be able to drive with windows how you want to in you vehicle without your door vibrating like they want to pop off.

SERVICE BRAKES

When putting my vehicle in park it jumps forward about 1 foot. This happen about 70% of the time when I shift into park. Also, my vehicle will brake randomly while driving. This happened one time on the freeway where my car came to a complete stop, luckily there was no one driving close behind me. More often this occurs while backing out of my driveway. My vehicle is available for inspection at any time. These problems are concerning because if my car jumps forward after being placed in park, I could potentially hit a vehicle parked in front of me or a person walking by. The braking while driving is very scary, especially since I was on the freeway and it could've possibly resulted in a serious accident. I took my vehicle to the dealership, and they had it for several days. When I picked it up, I was told that they were unable to recreate the issue of the car jumping forward. Regarding the braking while driving I was told that "a bulletin had been issued for this problem but since there is currently no fix, we advise the safety features be turned off." The mechanic then went on to say, "I'm unable to turn these features off because it would be a liability, but I can show you how." I spoke to the head of the service department the next day because I am scared to drive my young children around in this vehicle and was told that the braking sensors are just sensitive. At this point I'm not driving the car for safety reasons. No messages come on when the vehicle jumps forward after parking. When the vehicle brakes completely while driving I've seen the message saying once "obstacle detected" but other times I've been so startled I don't look at the dash, I'm more worried about getting hit in that moment. I did notice my seat vibrate every time this has happened. This all began shortly after buying my vehicle in February 2025.

FORWARD COLLISION AVOIDANCE: WARNINGS

Suddenly with just over 8300 miles on the vehicle, lights for ABS, traction control, forward collision and parking brake all came on. The brake pedal started to feel spongy on the way to the dealership. The dealership replaced the master cylinder under warranty.

SERVICE BRAKES

Suddenly with just over 8300 miles on the vehicle, lights for ABS, traction control, forward collision and parking brake all came on. The brake pedal started to feel spongy on the way to the dealership. The dealership replaced the master cylinder under warranty.

FORWARD COLLISION AVOIDANCE: WARNINGS

Car had Service brake assist warning along with 3 or lights on dadhboard. I was told master brake cylinder needs replacing

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

Car had Service brake assist warning along with 3 or lights on dadhboard. I was told master brake cylinder needs replacing

SERVICE BRAKES

Car had Service brake assist warning along with 3 or lights on dadhboard. I was told master brake cylinder needs replacing

ELECTRICAL SYSTEM

We purchased this 2025 Chevy Traverse on 6-13-2025. The dash goes dark/blank thus not allowing me to know the speed, amount of gas nor any information on the driving including driver assist measurements. I have taken the car in twice with no satisfaction. I received it back on Friday - 8/22/2025 and within 3 miles the screen was blank again. This makes the vehicle unsafe and dangerous.

SERVICE BRAKES

Took my Traverse through a car wash and when putting the vehicle from Neutral to Drive, a slew of lights turned on (ABS, traction control, check engine light). Car will be evaluated this coming week but all signs are pointing to the brake module and master cylinder as seen all over the internet and Reddit. This is a serious, common issue with GM vehicles and something needs to be done asap about this.

UNKNOWN OR OTHER

I purchased a 2025 Chevy Traverse in April 2025. The car had under 1056 miles on it. I was in another state 325 miles away from home when lights came on in the car. The PARK brake came on, the ABS light came on and a few others. The alert said, Service ESC, and service Brake Assist. What component or system failed or malfunctioned, and is it available for inspection upon request? We did research online and there were 33 other complaints from people with similar complaints. They reported that it was a master cylinder part and the dealers don’t have the part in stock. It could take up to two weeks for the part. How was your safety or the safety of others put at risk? My safety and my husband’s safety were at risk because we had to drive the car home. Our lives were at risk if the brakes failed. We took it to Key Motors a Chevy dealership in S. Burlington, VT. He said they would have to diagnose it themselves and the part could take two weeks or more. We cut our vacation short and could not stay in VT that long. We are elderly and did not have enough medicine, not to mention the cost of hotels. The VT dealer said without the computer, the car defaults to the driver like a 1980’s car. We took our chances and drove it home. Has the problem been reproduced or confirmed by a dealer or independent service center? No, but many people online have complained of the same problem. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? We had it towed to our local dealership, Bob Johnson Chevrolet. They just sent us a bill for $214 for certified multi point vehicle inspection. I still don’t know what problem. Onstar diagnosed it as ABS braking and stability diagnostic code; an issue has been detected in the Antilock Braking System. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? No other warnings or symptoms before messages appeared.

ELECTRICAL SYSTEM

I purchased a 2025 Chevy Traverse in April 2025. The car had under 1056 miles on it. I was in another state 325 miles away from home when lights came on in the car. The PARK brake came on, the ABS light came on and a few others. The alert said, Service ESC, and service Brake Assist. What component or system failed or malfunctioned, and is it available for inspection upon request? We did research online and there were 33 other complaints from people with similar complaints. They reported that it was a master cylinder part and the dealers don’t have the part in stock. It could take up to two weeks for the part. How was your safety or the safety of others put at risk? My safety and my husband’s safety were at risk because we had to drive the car home. Our lives were at risk if the brakes failed. We took it to Key Motors a Chevy dealership in S. Burlington, VT. He said they would have to diagnose it themselves and the part could take two weeks or more. We cut our vacation short and could not stay in VT that long. We are elderly and did not have enough medicine, not to mention the cost of hotels. The VT dealer said without the computer, the car defaults to the driver like a 1980’s car. We took our chances and drove it home. Has the problem been reproduced or confirmed by a dealer or independent service center? No, but many people online have complained of the same problem. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? We had it towed to our local dealership, Bob Johnson Chevrolet. They just sent us a bill for $214 for certified multi point vehicle inspection. I still don’t know what problem. Onstar diagnosed it as ABS braking and stability diagnostic code; an issue has been detected in the Antilock Braking System. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? No other warnings or symptoms before messages appeared.

SERVICE BRAKES

I purchased a 2025 Chevy Traverse in April 2025. The car had under 1056 miles on it. I was in another state 325 miles away from home when lights came on in the car. The PARK brake came on, the ABS light came on and a few others. The alert said, Service ESC, and service Brake Assist. What component or system failed or malfunctioned, and is it available for inspection upon request? We did research online and there were 33 other complaints from people with similar complaints. They reported that it was a master cylinder part and the dealers don’t have the part in stock. It could take up to two weeks for the part. How was your safety or the safety of others put at risk? My safety and my husband’s safety were at risk because we had to drive the car home. Our lives were at risk if the brakes failed. We took it to Key Motors a Chevy dealership in S. Burlington, VT. He said they would have to diagnose it themselves and the part could take two weeks or more. We cut our vacation short and could not stay in VT that long. We are elderly and did not have enough medicine, not to mention the cost of hotels. The VT dealer said without the computer, the car defaults to the driver like a 1980’s car. We took our chances and drove it home. Has the problem been reproduced or confirmed by a dealer or independent service center? No, but many people online have complained of the same problem. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? We had it towed to our local dealership, Bob Johnson Chevrolet. They just sent us a bill for $214 for certified multi point vehicle inspection. I still don’t know what problem. Onstar diagnosed it as ABS braking and stability diagnostic code; an issue has been detected in the Antilock Braking System. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? No other warnings or symptoms before messages appeared.

FORWARD COLLISION AVOIDANCE: WARNINGS

Four weeks after purchasing the vehicle the anti-lock brakes light, traction control and forward collision lights all came on. I took it to the dealership and was told this is a known issue with the master cylinder. My car was there for 13 weeks.

SERVICE BRAKES

Four weeks after purchasing the vehicle the anti-lock brakes light, traction control and forward collision lights all came on. I took it to the dealership and was told this is a known issue with the master cylinder. My car was there for 13 weeks.

UNKNOWN OR OTHER

This vehicle had 19500miles on it when we picked it up at the airport rental agency. It was 2WD model. We used it for 2200 miles on a family vacation and 95% of this was interstate highways. Smooth road surfaces. The travel conditions were sunny hot, dry. There were 6 passengers and a decent amount of luggage. Rear cargo area still had foot or more of space though so it was not stuffed like for a beach trip. At one point after getting on the highway from on ramp, there was a horrible sound. It got louder and louder quickly and caused us to panic. My husband looked in all the mirrors. He said it sounded like a Peterbilt semi was barreling down on our ass. But there was none in the mirrors. He quickly let off the gas pedal during this and the sound went away. As we sped up again though, it did the same thing and this time even louder. Starting around 72mph. Something was resonating in the body or powertrain of the car and it seemed like it was about to come apart! We did a check quickly, all of the windows were completely up, the AC was on. The radio was off. He slowed back down, the sound went away. But for 3rd time of trying to reach 75mph, the whomping sound came back and was so intense, it was debilitating and he almost could not hear me talking. We didn't know what to do. He braked immediately to pull off to the side. On a busy highway. After we stopped he got out to look at the tires but we did not a have tire pressure gage. They seemed perfectly normal. He looked under car, in wheel wells, opened the hood with the engine running, shook the car from side to side. Nothing was found loose or hanging down. After this, we could hear the same type of sound at 54mph, 60mph, and between 72-77mph , it all came down to what RPM and gear the transmission was in. This seems like a total design flaw in the chassis or power train. We told the rental agency that no one should be using or buying this car until the issue was fixed.

POWER TRAIN

This vehicle had 19500miles on it when we picked it up at the airport rental agency. It was 2WD model. We used it for 2200 miles on a family vacation and 95% of this was interstate highways. Smooth road surfaces. The travel conditions were sunny hot, dry. There were 6 passengers and a decent amount of luggage. Rear cargo area still had foot or more of space though so it was not stuffed like for a beach trip. At one point after getting on the highway from on ramp, there was a horrible sound. It got louder and louder quickly and caused us to panic. My husband looked in all the mirrors. He said it sounded like a Peterbilt semi was barreling down on our ass. But there was none in the mirrors. He quickly let off the gas pedal during this and the sound went away. As we sped up again though, it did the same thing and this time even louder. Starting around 72mph. Something was resonating in the body or powertrain of the car and it seemed like it was about to come apart! We did a check quickly, all of the windows were completely up, the AC was on. The radio was off. He slowed back down, the sound went away. But for 3rd time of trying to reach 75mph, the whomping sound came back and was so intense, it was debilitating and he almost could not hear me talking. We didn't know what to do. He braked immediately to pull off to the side. On a busy highway. After we stopped he got out to look at the tires but we did not a have tire pressure gage. They seemed perfectly normal. He looked under car, in wheel wells, opened the hood with the engine running, shook the car from side to side. Nothing was found loose or hanging down. After this, we could hear the same type of sound at 54mph, 60mph, and between 72-77mph , it all came down to what RPM and gear the transmission was in. This seems like a total design flaw in the chassis or power train. We told the rental agency that no one should be using or buying this car until the issue was fixed.

SERVICE BRAKES

We have. 2025 Chevy Traverse that we bought 10 days ago and it has 597 miles. I stopped at a location turned off the car. When I got back in to leave and turned it on, The brake light came on, and brake light, collision light, service ESC and service brakes light. Apparently there are 4 or more GM cars in the dealership service department for over a month waiting for the part to fix this issue. The car is currently in the service department of the dealership we bought it from 10 days ago with no known date of fixing due to the national back order on parts.

SERVICE BRAKES

On 8/11/2025 the brakes failed and the brake petal went all the way down. The check engine light came on as well as the ABS, traction control, front collision lights. The service ESC and service brake assist came on as well. It’s in the shop and needs a new brake master cylinder.

VEHICLE SPEED CONTROL

8/4/25 Vehicle was pulling from side road to main highway when lights and warnings came on dash cluster. brakes were very soft and not very responsive, car was slowed down on its own. Was able to pull into a driveway and take photos of some of the messages. One said service traction control, one said service ASC, and one said ‘brake assist fail, press hard to brake, speed reduced. After restarting car all was normal. 8/11/25. Sitting in some morning traffic and all the same messages came up and brakes were soft again. Was able to keep some distance between myself and other cars until I could get off the road. Immediately made an appointment for dealership service. After restarting car, all was normal again. Took car to dealership at appointed time and they kept it for a week and only did test drives to try and recreate problem. When they couldn’t they returned the vehicle to me with nothing done but clearing codes and checking for updates. This is unacceptable. I am hauling my precious grandchildren in a brand new vehicle that could have a braking failure at any time. Obviously braking failures can cost lives. There is a GM service bulletin for this exact problem in December 2024 (N242482170) requesting the master cylinder should be replaced. This service bulletin doesn’t extend to the 2025 Traverse model and it should as the problems are exactly the same. I hope this can be resolved. I’m very uneasy driving now and just keep wondering when this will happen again and how bad it could be.

SERVICE BRAKES

8/4/25 Vehicle was pulling from side road to main highway when lights and warnings came on dash cluster. brakes were very soft and not very responsive, car was slowed down on its own. Was able to pull into a driveway and take photos of some of the messages. One said service traction control, one said service ASC, and one said ‘brake assist fail, press hard to brake, speed reduced. After restarting car all was normal. 8/11/25. Sitting in some morning traffic and all the same messages came up and brakes were soft again. Was able to keep some distance between myself and other cars until I could get off the road. Immediately made an appointment for dealership service. After restarting car, all was normal again. Took car to dealership at appointed time and they kept it for a week and only did test drives to try and recreate problem. When they couldn’t they returned the vehicle to me with nothing done but clearing codes and checking for updates. This is unacceptable. I am hauling my precious grandchildren in a brand new vehicle that could have a braking failure at any time. Obviously braking failures can cost lives. There is a GM service bulletin for this exact problem in December 2024 (N242482170) requesting the master cylinder should be replaced. This service bulletin doesn’t extend to the 2025 Traverse model and it should as the problems are exactly the same. I hope this can be resolved. I’m very uneasy driving now and just keep wondering when this will happen again and how bad it could be.

FORWARD COLLISION AVOIDANCE: WARNINGS

On Aug 15th, 2025 I went to pick up my children from school. As I picked up my child and turned the vehicle on to go pick up my second child, the car notified me on the dash board of 4 icons. Brake, ABS, traction and collision. Service ESC and Brake assist service needed. I was very concerned when I went to drive and when I gently eased into the brakes I could hear a small noise, every time I pressed the brakes. My second childs school is about 4 minutes away. I called Chevrolet dealership where I purchased it from in February, explained everything and they said i needed to take it in to a Chevrolet dealership near me. I called the nearest Chevy dealership and they said to bring it in the same day or the next day. Saturday Aug 16th, 2025 at 8am I was at the dealership. They checked to see what codes ran up and if it was safe to drive, they pulled 4 codes and told me it wasn't safe and I needed to leave it for 10-14 days minimum. They said they could not provide me a vehicle / loaner. I had already called Chevrolet Customer service the day before to receive assistance with a temporary vehicle as the dealership had told me they had no loaner to provide. I explained to Chevrolet Customer service that I am a disabled & handicap veteran with children. I do not have a secondary vehicle and it is a necessity as i drop off and pick up my children and attend medical appointments. The employee was able to open a case for me and send it to the regional person around my area. No one has called me. Today Saturday, I dropped off my vehicle and picked up a rental according to the guidelines provided by the Chevrolet employee for reimbursement a GM vehicle under $44 a day. This is a huge inconvenience , unacceptable from a new 2025 vehicle. Ot has put me in a hardship position financially. The hassle, my Traverse has handicap plates and my rental does not. Very upset and frustrated. I need as much support and help from GM / Chevrolet to resolve this SAFETY issue for my children.

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

On Aug 15th, 2025 I went to pick up my children from school. As I picked up my child and turned the vehicle on to go pick up my second child, the car notified me on the dash board of 4 icons. Brake, ABS, traction and collision. Service ESC and Brake assist service needed. I was very concerned when I went to drive and when I gently eased into the brakes I could hear a small noise, every time I pressed the brakes. My second childs school is about 4 minutes away. I called Chevrolet dealership where I purchased it from in February, explained everything and they said i needed to take it in to a Chevrolet dealership near me. I called the nearest Chevy dealership and they said to bring it in the same day or the next day. Saturday Aug 16th, 2025 at 8am I was at the dealership. They checked to see what codes ran up and if it was safe to drive, they pulled 4 codes and told me it wasn't safe and I needed to leave it for 10-14 days minimum. They said they could not provide me a vehicle / loaner. I had already called Chevrolet Customer service the day before to receive assistance with a temporary vehicle as the dealership had told me they had no loaner to provide. I explained to Chevrolet Customer service that I am a disabled & handicap veteran with children. I do not have a secondary vehicle and it is a necessity as i drop off and pick up my children and attend medical appointments. The employee was able to open a case for me and send it to the regional person around my area. No one has called me. Today Saturday, I dropped off my vehicle and picked up a rental according to the guidelines provided by the Chevrolet employee for reimbursement a GM vehicle under $44 a day. This is a huge inconvenience , unacceptable from a new 2025 vehicle. Ot has put me in a hardship position financially. The hassle, my Traverse has handicap plates and my rental does not. Very upset and frustrated. I need as much support and help from GM / Chevrolet to resolve this SAFETY issue for my children.

SERVICE BRAKES

On Aug 15th, 2025 I went to pick up my children from school. As I picked up my child and turned the vehicle on to go pick up my second child, the car notified me on the dash board of 4 icons. Brake, ABS, traction and collision. Service ESC and Brake assist service needed. I was very concerned when I went to drive and when I gently eased into the brakes I could hear a small noise, every time I pressed the brakes. My second childs school is about 4 minutes away. I called Chevrolet dealership where I purchased it from in February, explained everything and they said i needed to take it in to a Chevrolet dealership near me. I called the nearest Chevy dealership and they said to bring it in the same day or the next day. Saturday Aug 16th, 2025 at 8am I was at the dealership. They checked to see what codes ran up and if it was safe to drive, they pulled 4 codes and told me it wasn't safe and I needed to leave it for 10-14 days minimum. They said they could not provide me a vehicle / loaner. I had already called Chevrolet Customer service the day before to receive assistance with a temporary vehicle as the dealership had told me they had no loaner to provide. I explained to Chevrolet Customer service that I am a disabled & handicap veteran with children. I do not have a secondary vehicle and it is a necessity as i drop off and pick up my children and attend medical appointments. The employee was able to open a case for me and send it to the regional person around my area. No one has called me. Today Saturday, I dropped off my vehicle and picked up a rental according to the guidelines provided by the Chevrolet employee for reimbursement a GM vehicle under $44 a day. This is a huge inconvenience , unacceptable from a new 2025 vehicle. Ot has put me in a hardship position financially. The hassle, my Traverse has handicap plates and my rental does not. Very upset and frustrated. I need as much support and help from GM / Chevrolet to resolve this SAFETY issue for my children.

VEHICLE SPEED CONTROL

Brake light, ABS light, Forward collision light and Traction control light all come on when the car was started. Had to be towed to Woody Folsom dealership in Baxley, GA and is currently still there. Was told it was the brake master cyclinder and it is on nationwide backorder. The part came in this week and they put it in and could not get the car to program. They are waiting for another brake master cyclinder to arrive. So I am at 8 weeks of the car being down and in service at the dealership with no estimated date of when and if it can be fixed. I have received Onstar notifications that says A critical issue with the engine and transmission system in your 2025 Chevrolet Traverse has been detected. The battery in your 2025 Chevrolet Traverse is critically low.

SERVICE BRAKES

Brake light, ABS light, Forward collision light and Traction control light all come on when the car was started. Had to be towed to Woody Folsom dealership in Baxley, GA and is currently still there. Was told it was the brake master cyclinder and it is on nationwide backorder. The part came in this week and they put it in and could not get the car to program. They are waiting for another brake master cyclinder to arrive. So I am at 8 weeks of the car being down and in service at the dealership with no estimated date of when and if it can be fixed. I have received Onstar notifications that says A critical issue with the engine and transmission system in your 2025 Chevrolet Traverse has been detected. The battery in your 2025 Chevrolet Traverse is critically low.

SERVICE BRAKES

New vehicle (bought in April 2025), vehicle has about 6400 miles. The ABS, forward collision braking system, traction and emergency brake services light all popped up (including alerts stating "Service ESC" and "Service Brake Assist"). Took to the dealership and was told the master brake cylinder needs replaced. They said the part is on back order and no eta.

SERVICE BRAKES

When my new vehicle hit 4k miles, the dash started to show alerts for "Service ESC" and "Service Break Assist". As well as those alerts, there were additional notification lights for "Brake", "ABS", "Electronic Stability Control (ESC)/Traction Control", and "Forward Collision Alert (FCA)". After some research, I was worried to drive my car incase the breaks would not work properly. So I discontinued to used my car with my 2 young children. The Chevy dealership has confirmed it's the back master cylinder that needs to be replaced. From my research, this is a common issue happening and a roll over issue from the 2024 models.

ENGINE

Transmission failed at 7100 miles.

FORWARD COLLISION AVOIDANCE: WARNINGS

August 6, 2025 I was driving and it started to rain and there was a little rain on the road and my vehicle appeared to be hydroplaning. I had never experienced that before and it scared me to the point that I reduced my speed significantly. I arrived at my destination and was there for about three hours and when I started my 2025 Chevrolet Traverse I had 4 lights come on my dashboard along with a warning chime. The lights were the BRAKE LIGHT, ABS LIGHT, FORWARD COLLISION ASSIST LIGHT AND TRACTION CONTROL LIGHT; and a Service ESC and Service Brake Assist message popped up in separate boxes from the lights themselves. I turned off my Traverse and hoped it was some fluke thing and again the same lights came on and same messages. I drove my vehicle home cautiously and parked it. I called the dealer I purchased it from the following morning and was given a service appointment 11 days out and I stated that was unacceptable since I was not sure the vehicle was safe to drive from everything I was reading online. The service dept stated that they could place it on a machine if I stopped into the dealership and let me know if was safe to drive. My husband drove it to the dealership 25 miles away and wasn't happy with the service department and spoke to a manager and he stated they would look at my vehicle the following day and gave me a loaner. My husband advised the manager that everything I had been reading pointed to an issue with the master brake cylinder and the parts are on backorder and the manager said he hadn't heard of any issues with them. I received a call 4 days later after asking the status of my new car repeatedly and was told that it is the master brake cylinder and a couple of the parts are on backorder and they don't know when they will arrive; could be a week, two or a month. I am extremely concerned about the seriousness of this issue and the lack of parts to repair the vehicle. As I stated, there are multiple incidents on google over this same issue.

VEHICLE SPEED CONTROL

August 6, 2025 I was driving and it started to rain and there was a little rain on the road and my vehicle appeared to be hydroplaning. I had never experienced that before and it scared me to the point that I reduced my speed significantly. I arrived at my destination and was there for about three hours and when I started my 2025 Chevrolet Traverse I had 4 lights come on my dashboard along with a warning chime. The lights were the BRAKE LIGHT, ABS LIGHT, FORWARD COLLISION ASSIST LIGHT AND TRACTION CONTROL LIGHT; and a Service ESC and Service Brake Assist message popped up in separate boxes from the lights themselves. I turned off my Traverse and hoped it was some fluke thing and again the same lights came on and same messages. I drove my vehicle home cautiously and parked it. I called the dealer I purchased it from the following morning and was given a service appointment 11 days out and I stated that was unacceptable since I was not sure the vehicle was safe to drive from everything I was reading online. The service dept stated that they could place it on a machine if I stopped into the dealership and let me know if was safe to drive. My husband drove it to the dealership 25 miles away and wasn't happy with the service department and spoke to a manager and he stated they would look at my vehicle the following day and gave me a loaner. My husband advised the manager that everything I had been reading pointed to an issue with the master brake cylinder and the parts are on backorder and the manager said he hadn't heard of any issues with them. I received a call 4 days later after asking the status of my new car repeatedly and was told that it is the master brake cylinder and a couple of the parts are on backorder and they don't know when they will arrive; could be a week, two or a month. I am extremely concerned about the seriousness of this issue and the lack of parts to repair the vehicle. As I stated, there are multiple incidents on google over this same issue.

SERVICE BRAKES

August 6, 2025 I was driving and it started to rain and there was a little rain on the road and my vehicle appeared to be hydroplaning. I had never experienced that before and it scared me to the point that I reduced my speed significantly. I arrived at my destination and was there for about three hours and when I started my 2025 Chevrolet Traverse I had 4 lights come on my dashboard along with a warning chime. The lights were the BRAKE LIGHT, ABS LIGHT, FORWARD COLLISION ASSIST LIGHT AND TRACTION CONTROL LIGHT; and a Service ESC and Service Brake Assist message popped up in separate boxes from the lights themselves. I turned off my Traverse and hoped it was some fluke thing and again the same lights came on and same messages. I drove my vehicle home cautiously and parked it. I called the dealer I purchased it from the following morning and was given a service appointment 11 days out and I stated that was unacceptable since I was not sure the vehicle was safe to drive from everything I was reading online. The service dept stated that they could place it on a machine if I stopped into the dealership and let me know if was safe to drive. My husband drove it to the dealership 25 miles away and wasn't happy with the service department and spoke to a manager and he stated they would look at my vehicle the following day and gave me a loaner. My husband advised the manager that everything I had been reading pointed to an issue with the master brake cylinder and the parts are on backorder and the manager said he hadn't heard of any issues with them. I received a call 4 days later after asking the status of my new car repeatedly and was told that it is the master brake cylinder and a couple of the parts are on backorder and they don't know when they will arrive; could be a week, two or a month. I am extremely concerned about the seriousness of this issue and the lack of parts to repair the vehicle. As I stated, there are multiple incidents on google over this same issue.

SERVICE BRAKES

Started car and began backing up when ECS, Brake, and ABS messages came up. Upon attempting to break at slower rates of speed it felt like the brakes would slip slightly before catching and stopping. At normal rates of speed (25+) it wasn’t noticeable. In shop now with ‘censor failure’

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

Brake master cylinder ECU failed. Illuminated warning lights for BRAKE, FRONT END COLLISION AVOIDANCE, ABS, and ELECTRONIC STABILITY CONTROL. Took the vehicle to dealership and was told about the part failure. They advised that there was no ETA on parts that are on backorder. The codes were removed and the warning lights went off, but came back on the next day. I was told that the vehicle was drivable, but they could not guarantee my safety. The dealership had no loaners so I had no choice but to drive the vehicle home.

FORWARD COLLISION AVOIDANCE: WARNINGS

Brake master cylinder ECU failed. Illuminated warning lights for BRAKE, FRONT END COLLISION AVOIDANCE, ABS, and ELECTRONIC STABILITY CONTROL. Took the vehicle to dealership and was told about the part failure. They advised that there was no ETA on parts that are on backorder. The codes were removed and the warning lights went off, but came back on the next day. I was told that the vehicle was drivable, but they could not guarantee my safety. The dealership had no loaners so I had no choice but to drive the vehicle home.

SERVICE BRAKES

Brake master cylinder ECU failed. Illuminated warning lights for BRAKE, FRONT END COLLISION AVOIDANCE, ABS, and ELECTRONIC STABILITY CONTROL. Took the vehicle to dealership and was told about the part failure. They advised that there was no ETA on parts that are on backorder. The codes were removed and the warning lights went off, but came back on the next day. I was told that the vehicle was drivable, but they could not guarantee my safety. The dealership had no loaners so I had no choice but to drive the vehicle home.

SERVICE BRAKES

I purchased a 2025 Chevrolet Traverse and experienced a complete failure of the master brake cylinder approximately two months after purchase. The brake system failed as I was operating the vehicle, creating a significant safety hazard. Fortunately, no accident occurred, but the car became unsafe and was in the dealership service center for 5 weeks awaiting repair. This failure occurred with very low mileage and without warning. I am concerned that this may be a manufacturing defect or part of a wider issue. The extended service delay also caused major inconvenience and out-of-pocket expenses. I am submitting this complaint so the NHTSA can track similar reports and investigate if necessary.

BACK OVER PREVENTION: WARNINGS

ABS and ESC and brake lights came on. Collision beeping and warning went out. Brake pedal vey late to respond to braking. This vehicle is unsafe. It has been sitting and the Chevy dealer for 2 weeks now with no information given to me about when it will be fixed. I call the dealer every other day and they just say that Chevy will be shipping parts. This is clearly a nation wide problem with this vehicle. I’ve read numerous articles online about people with the same problem and have contacted an attorney

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

ABS and ESC and brake lights came on. Collision beeping and warning went out. Brake pedal vey late to respond to braking. This vehicle is unsafe. It has been sitting and the Chevy dealer for 2 weeks now with no information given to me about when it will be fixed. I call the dealer every other day and they just say that Chevy will be shipping parts. This is clearly a nation wide problem with this vehicle. I’ve read numerous articles online about people with the same problem and have contacted an attorney

SERVICE BRAKES

ABS and ESC and brake lights came on. Collision beeping and warning went out. Brake pedal vey late to respond to braking. This vehicle is unsafe. It has been sitting and the Chevy dealer for 2 weeks now with no information given to me about when it will be fixed. I call the dealer every other day and they just say that Chevy will be shipping parts. This is clearly a nation wide problem with this vehicle. I’ve read numerous articles online about people with the same problem and have contacted an attorney

SERVICE BRAKES

Brake assist, ESC alerts on vehicle. Sat in the dealer service shop for 3 days and said to have been fixed. Still with same issue

FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

Master cylinder failure

FORWARD COLLISION AVOIDANCE: WARNINGS

Master cylinder failure

SERVICE BRAKES

Master cylinder failure

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

We were told we had a faulty master cylinder that needed to be replaced. The ABS, forward collision braking system, rear collision breaking system, and emergency brake were all at risk, which puts a significant risk to the passengers in the vehicle, including children. The problem was confirmed by the dealership with no information about timing of replacement since there is a national shortage of this part. Warning messages included ABS, BRAKE, forward collision, rear collision- lights came on several times. They appeared suddenly after turning on the car without incident. We tried turning off the car and letting it sit for long periods of time without resolution. The dealership initially flushed the brake line without resolution.

FORWARD COLLISION AVOIDANCE: WARNINGS

We were told we had a faulty master cylinder that needed to be replaced. The ABS, forward collision braking system, rear collision breaking system, and emergency brake were all at risk, which puts a significant risk to the passengers in the vehicle, including children. The problem was confirmed by the dealership with no information about timing of replacement since there is a national shortage of this part. Warning messages included ABS, BRAKE, forward collision, rear collision- lights came on several times. They appeared suddenly after turning on the car without incident. We tried turning off the car and letting it sit for long periods of time without resolution. The dealership initially flushed the brake line without resolution.

SERVICE BRAKES

We were told we had a faulty master cylinder that needed to be replaced. The ABS, forward collision braking system, rear collision breaking system, and emergency brake were all at risk, which puts a significant risk to the passengers in the vehicle, including children. The problem was confirmed by the dealership with no information about timing of replacement since there is a national shortage of this part. Warning messages included ABS, BRAKE, forward collision, rear collision- lights came on several times. They appeared suddenly after turning on the car without incident. We tried turning off the car and letting it sit for long periods of time without resolution. The dealership initially flushed the brake line without resolution.

FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

Parked the vehicle a Saturday evening went to get into it Sunday morning and the dash was lit up with abs light, service ESC, traction control, check engine light. Called the dealership I bought it from to tell them what was going on, brought it in on a Monday evening to be looked at Thursday. Was called to be informed the master cylinder went bad. Was told by the service manger part would be in to be fixed Wednesday. Wednesday came and gone with no call, finally got a call Thursday evening that the part did not arrive and NOW they have no ETA on the part.

ELECTRICAL SYSTEM

Parked the vehicle a Saturday evening went to get into it Sunday morning and the dash was lit up with abs light, service ESC, traction control, check engine light. Called the dealership I bought it from to tell them what was going on, brought it in on a Monday evening to be looked at Thursday. Was called to be informed the master cylinder went bad. Was told by the service manger part would be in to be fixed Wednesday. Wednesday came and gone with no call, finally got a call Thursday evening that the part did not arrive and NOW they have no ETA on the part.

SERVICE BRAKES

Parked the vehicle a Saturday evening went to get into it Sunday morning and the dash was lit up with abs light, service ESC, traction control, check engine light. Called the dealership I bought it from to tell them what was going on, brought it in on a Monday evening to be looked at Thursday. Was called to be informed the master cylinder went bad. Was told by the service manger part would be in to be fixed Wednesday. Wednesday came and gone with no call, finally got a call Thursday evening that the part did not arrive and NOW they have no ETA on the part.

STRUCTURE:BODY

the car had a faulty door that would stick intermittently since the day we purchased it (march 10, 2025) and wouldn't open unless forced. we reported the issue on march 23rd to our sales rep (jorge) and didn't act upon it until two months later when it wouldn't open at all. upon bringing it into the shop on may 27th it was determined that there was a faulty latch. they also discovered that the brake light was on and the car was in need of multiple components - master cylinder, the adapter and the reservoir. we have had a rental car since 5/27/25 and yet to receive our car back.

SERVICE BRAKES

the car had a faulty door that would stick intermittently since the day we purchased it (march 10, 2025) and wouldn't open unless forced. we reported the issue on march 23rd to our sales rep (jorge) and didn't act upon it until two months later when it wouldn't open at all. upon bringing it into the shop on may 27th it was determined that there was a faulty latch. they also discovered that the brake light was on and the car was in need of multiple components - master cylinder, the adapter and the reservoir. we have had a rental car since 5/27/25 and yet to receive our car back.

SERVICE BRAKES

I was in the car wash and the service ESC came on It also had the traction control, ABS and check engine light came on. When I restarted my car the check engine light only came on . On the Chevy app it says my Anti Breaking System needs serviced. This is a brand new car bought a couple months ago with under 3,000 miles.

SERVICE BRAKES

While driving my 2025 Chevy Traverse with under 2,000 miles on the odometer, multiple brake-related warnings suddenly appeared on the dashboard, including: Service Electronic Stability Control, Brake Assist, Brake System Warning, and Anti-lock Brake System (ABS). I brought the vehicle to the dealership for diagnosis, where the issue was confirmed. However, I was informed that the replacement part is currently on back order, with no clear timeline for availability. I immediately contacted GM for assistance and was informed that the issue was due to a defective Brake Master Cylinder (part number 85762161). After further research, I discovered that a defective master cylinder can result in partial or complete brake failure, posing a serious safety risk. Given the extremely low mileage and the critical nature of the affected component, I believe this issue warrants investigation. I am concerned that similar failures may be occurring in other 2024–2025 Chevy Traverse vehicles and could lead to dangerous situations if not addressed promptly.

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

While driving the automatic brake assist failure light came on. I was unable to stop at a very busy intersection and was forced into traffic even though I had a red light. The parking brake, engine light, and light came on.

FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

While driving the automatic brake assist failure light came on. I was unable to stop at a very busy intersection and was forced into traffic even though I had a red light. The parking brake, engine light, and light came on.

SERVICE BRAKES

While driving the automatic brake assist failure light came on. I was unable to stop at a very busy intersection and was forced into traffic even though I had a red light. The parking brake, engine light, and light came on.

FORWARD COLLISION AVOIDANCE: WARNINGS

Warning codes - Service Brake Assist, Service Electronic Stability Control (ESC), Forward Collision system unavailable. Brake pedal felt different with an associated clunk noise. Brake Fluid believed to have been leaking in garage. Dealer diagnosis as Master Brake Cylinder failure. No parts available/no ETA available. Car is 5 months old and under 5,000 miles on the odometer.

SERVICE BRAKES

Warning codes - Service Brake Assist, Service Electronic Stability Control (ESC), Forward Collision system unavailable. Brake pedal felt different with an associated clunk noise. Brake Fluid believed to have been leaking in garage. Dealer diagnosis as Master Brake Cylinder failure. No parts available/no ETA available. Car is 5 months old and under 5,000 miles on the odometer.

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

I started my Traverse and the brake light, forward collision alert, brake assist, stability control lights came on. The warning messages to service ESC, and service brake assist also came on. I have 2182 miles on my vehicle. No warning of anything wrong before this happened. It is available for inspection. It was towed to the closest dealership who determined the master cylinder needed replacing. I did not drive it due to warnings the brake systems were not functioning properly. Could have caused a wreck if they did not work. It has since been towed to the dealership it was purchased at awaiting their diagnosis. The first dealership said the master cylinder is on backorder with no ETA.

FORWARD COLLISION AVOIDANCE: WARNINGS

I started my Traverse and the brake light, forward collision alert, brake assist, stability control lights came on. The warning messages to service ESC, and service brake assist also came on. I have 2182 miles on my vehicle. No warning of anything wrong before this happened. It is available for inspection. It was towed to the closest dealership who determined the master cylinder needed replacing. I did not drive it due to warnings the brake systems were not functioning properly. Could have caused a wreck if they did not work. It has since been towed to the dealership it was purchased at awaiting their diagnosis. The first dealership said the master cylinder is on backorder with no ETA.

SERVICE BRAKES

I started my Traverse and the brake light, forward collision alert, brake assist, stability control lights came on. The warning messages to service ESC, and service brake assist also came on. I have 2182 miles on my vehicle. No warning of anything wrong before this happened. It is available for inspection. It was towed to the closest dealership who determined the master cylinder needed replacing. I did not drive it due to warnings the brake systems were not functioning properly. Could have caused a wreck if they did not work. It has since been towed to the dealership it was purchased at awaiting their diagnosis. The first dealership said the master cylinder is on backorder with no ETA.

FORWARD COLLISION AVOIDANCE: WARNINGS

Our 2025 Chevrolet Traverse experienced a brake system failure on July 17th. We took the vehicle into the shop with the following errors on the screen: Service brake assist Service ESC Forward collision system unavailable My wife and children were in the car when the incident occurred. We have a 20 minute drive, through traffic, to the nearest dealership. At any point, the brakes could have completely failed. The problem is active as the car still remains at the dealership, Alan Jay Chevrolet of Wauchula. The vehicle has not been inspected by the manufacturer, but by the qualified service staff at the dealership.

SERVICE BRAKES

Our 2025 Chevrolet Traverse experienced a brake system failure on July 17th. We took the vehicle into the shop with the following errors on the screen: Service brake assist Service ESC Forward collision system unavailable My wife and children were in the car when the incident occurred. We have a 20 minute drive, through traffic, to the nearest dealership. At any point, the brakes could have completely failed. The problem is active as the car still remains at the dealership, Alan Jay Chevrolet of Wauchula. The vehicle has not been inspected by the manufacturer, but by the qualified service staff at the dealership.

FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

Master Cylinder failure after less than 3 months of ownership and only 3,891 Miles. Multiple warnings lights related to brakes appeared when the car was started. GM already had a TSB for the 2024 Traverse but has not come out to say 2025 models are impacted yet. Multiple reports of people that do have the issue are waiting weeks for a replacement part because GM is not able to source them. Seems that there is a known issue but GM is just waiting for something to happen due to the lack of parts. Given it's the brakes could result is serious injury due to GMs negligence.

FORWARD COLLISION AVOIDANCE: WARNINGS

Master Cylinder failure after less than 3 months of ownership and only 3,891 Miles. Multiple warnings lights related to brakes appeared when the car was started. GM already had a TSB for the 2024 Traverse but has not come out to say 2025 models are impacted yet. Multiple reports of people that do have the issue are waiting weeks for a replacement part because GM is not able to source them. Seems that there is a known issue but GM is just waiting for something to happen due to the lack of parts. Given it's the brakes could result is serious injury due to GMs negligence.

SERVICE BRAKES

Master Cylinder failure after less than 3 months of ownership and only 3,891 Miles. Multiple warnings lights related to brakes appeared when the car was started. GM already had a TSB for the 2024 Traverse but has not come out to say 2025 models are impacted yet. Multiple reports of people that do have the issue are waiting weeks for a replacement part because GM is not able to source them. Seems that there is a known issue but GM is just waiting for something to happen due to the lack of parts. Given it's the brakes could result is serious injury due to GMs negligence.

FORWARD COLLISION AVOIDANCE: WARNINGS

Car with only 3900 miles brand new after 3 months the braking system, collision system, parking assist, ABS and brake lights appeared on dashboard, at the dealer since 07/14/2025, I was suggested not to drive the car. Same day called GM customer service and opened a case, the dealer gives me a rental car to use until the repair is finished. At the end of the same week I called again GM customer service asking about news and the parts was back ordered, they told me to wait 5 business days for a possible repurchase or for any updates for parts. Today 07/31/2025 I called again GM and they said that the parts were shipped but they didn’t had the tracking number, I called my dealer and the parts are in back order without eta.

VEHICLE SPEED CONTROL

Car with only 3900 miles brand new after 3 months the braking system, collision system, parking assist, ABS and brake lights appeared on dashboard, at the dealer since 07/14/2025, I was suggested not to drive the car. Same day called GM customer service and opened a case, the dealer gives me a rental car to use until the repair is finished. At the end of the same week I called again GM customer service asking about news and the parts was back ordered, they told me to wait 5 business days for a possible repurchase or for any updates for parts. Today 07/31/2025 I called again GM and they said that the parts were shipped but they didn’t had the tracking number, I called my dealer and the parts are in back order without eta.

SERVICE BRAKES

Car with only 3900 miles brand new after 3 months the braking system, collision system, parking assist, ABS and brake lights appeared on dashboard, at the dealer since 07/14/2025, I was suggested not to drive the car. Same day called GM customer service and opened a case, the dealer gives me a rental car to use until the repair is finished. At the end of the same week I called again GM customer service asking about news and the parts was back ordered, they told me to wait 5 business days for a possible repurchase or for any updates for parts. Today 07/31/2025 I called again GM and they said that the parts were shipped but they didn’t had the tracking number, I called my dealer and the parts are in back order without eta.

FORWARD COLLISION AVOIDANCE: WARNINGS

As I was driving my 2025 Traverse Z71, at 2180 miles, different lights popped up on the dashboard. I was backing out of my garage when it happened. Lights were ABS, BRAKE, Electronic Stability Control, and pre-collision warning light. Also notifications for Service Brake Assist and Service ESC also came on. The dealer had me drive it to their shop 25 miles away. After inspection, the Chevrolet service department said it was unsafe to drive my Traverse. The part they needed to replace was the Master Cylinder/Brake System Control Module. Unfortunately the part was on backorder and they did not have a loaner I could borrow. I turned in my vehicle Wednesday, June 25, 2025. I got my Traverse back Thursday, July 24, 2025. It was very close to 30 days and I would have followed guidelines for lemon law in state of WI. When I picked up the vehicle, there were several other Traverses waiting on the same part. As of now July, 30th, vehicle is in working order.

BACK OVER PREVENTION: WARNINGS

As I was driving my 2025 Traverse Z71, at 2180 miles, different lights popped up on the dashboard. I was backing out of my garage when it happened. Lights were ABS, BRAKE, Electronic Stability Control, and pre-collision warning light. Also notifications for Service Brake Assist and Service ESC also came on. The dealer had me drive it to their shop 25 miles away. After inspection, the Chevrolet service department said it was unsafe to drive my Traverse. The part they needed to replace was the Master Cylinder/Brake System Control Module. Unfortunately the part was on backorder and they did not have a loaner I could borrow. I turned in my vehicle Wednesday, June 25, 2025. I got my Traverse back Thursday, July 24, 2025. It was very close to 30 days and I would have followed guidelines for lemon law in state of WI. When I picked up the vehicle, there were several other Traverses waiting on the same part. As of now July, 30th, vehicle is in working order.

SERVICE BRAKES

As I was driving my 2025 Traverse Z71, at 2180 miles, different lights popped up on the dashboard. I was backing out of my garage when it happened. Lights were ABS, BRAKE, Electronic Stability Control, and pre-collision warning light. Also notifications for Service Brake Assist and Service ESC also came on. The dealer had me drive it to their shop 25 miles away. After inspection, the Chevrolet service department said it was unsafe to drive my Traverse. The part they needed to replace was the Master Cylinder/Brake System Control Module. Unfortunately the part was on backorder and they did not have a loaner I could borrow. I turned in my vehicle Wednesday, June 25, 2025. I got my Traverse back Thursday, July 24, 2025. It was very close to 30 days and I would have followed guidelines for lemon law in state of WI. When I picked up the vehicle, there were several other Traverses waiting on the same part. As of now July, 30th, vehicle is in working order.

FORWARD COLLISION AVOIDANCE: WARNINGS

AFTER 4K MILES, MASTER BRAKE CYLINDER FAILED, WITH NO REPLACEMENT . EXPECTING 4-6 WEEK DELAYH

FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

AFTER 4K MILES, MASTER BRAKE CYLINDER FAILED, WITH NO REPLACEMENT . EXPECTING 4-6 WEEK DELAYH

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

AFTER 4K MILES, MASTER BRAKE CYLINDER FAILED, WITH NO REPLACEMENT . EXPECTING 4-6 WEEK DELAYH

FORWARD COLLISION AVOIDANCE: WARNINGS

Began driving warning lights for brakes, abs, traction control, and forward collision on. Brakes then locked up. Pulled over and full lost brake compression. Could have caused an accident if on the highway. Waiting on tow truck to take to the dealership for repair.

SERVICE BRAKES

Began driving warning lights for brakes, abs, traction control, and forward collision on. Brakes then locked up. Pulled over and full lost brake compression. Could have caused an accident if on the highway. Waiting on tow truck to take to the dealership for repair.

ENGINE

Transmission went out on my way home at about 9,500 miles. It has been in the shop going on 3 months

SERVICE BRAKES

The master brake cylinder failed around the 1600-mile mark. It seems to be occurring on 2025 Chevrolet Traverse and Buick Enclave models. GM has no ETA on replacement parts. I took it to a nearby dealer service center (Dave Kirk Chevrolet in Crossville, TN), and they diagnosed the issue. I took it to a second dealer (Murfreesboro Chevrolet Buick GMC in TN), and they diagnosed the same issue. The vehicle is now sitting in the dealer's lot with no ETA on a replacement part.

ENGINE

After owning the vehicle for 13 short days, the check engine light came on and a message appeared indicating the vehicle could not be put in reverse due to unsafe vehicle condition. The vehicle just hit 500 miles at this time. Brought vehicle to the dealership 7/14 and it is still there diagnosed with needing a valve body for the transmission which is on back order and no estimate on when it will be available.

POWER TRAIN

After owning the vehicle for 13 short days, the check engine light came on and a message appeared indicating the vehicle could not be put in reverse due to unsafe vehicle condition. The vehicle just hit 500 miles at this time. Brought vehicle to the dealership 7/14 and it is still there diagnosed with needing a valve body for the transmission which is on back order and no estimate on when it will be available.

UNKNOWN OR OTHER

My Traverse prompted me to do an update - I did- and all my cameras stopped working- took to dealership - they tried to do a Manuel update and locked up the whole system- and the USB’s stopped working - 4 weeks later waiting on new system and no answer in site for when parts will be in - contacted GM and they escalated issue - told to be patient - just made my 3rd payment - I want a new car not a traverse - want them to buy back their lemon - after reading all the issues shame on GM for ignoring all these complaints

ELECTRICAL SYSTEM

My Traverse prompted me to do an update - I did- and all my cameras stopped working- took to dealership - they tried to do a Manuel update and locked up the whole system- and the USB’s stopped working - 4 weeks later waiting on new system and no answer in site for when parts will be in - contacted GM and they escalated issue - told to be patient - just made my 3rd payment - I want a new car not a traverse - want them to buy back their lemon - after reading all the issues shame on GM for ignoring all these complaints

FORWARD COLLISION AVOIDANCE: WARNINGS

Purchased new 25 Traverse. Driving from AR to OK, stopped at a store, parked car. Upon returning to car, start ignition and red "BRAKE" light illuminated as well as ABS, Traction control and forward collision icons all lit. "Service brake assist, service esc, rear auto brake and park assist unavailable" warnings all show on the dash. Vehicle had 2747 miles at time this occurred. Systems check on dash showed all tires not registering on the vehicle and the vehicle icon illuminated orange. Vehicle needed to "relearn sensors." Vehicle has several clicking noises in the dash after shutting off. Vehicle brake pedal clicks when depressed at low speeds (as in driving in a parking lot) These noises and issues were not occurring prior to this vehicle stopping at the 2747 miles. Vehicle is unsafe to drive as this is the main stopping system, we were 300 plus miles from home when this happened.

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

Purchased new 25 Traverse. Driving from AR to OK, stopped at a store, parked car. Upon returning to car, start ignition and red "BRAKE" light illuminated as well as ABS, Traction control and forward collision icons all lit. "Service brake assist, service esc, rear auto brake and park assist unavailable" warnings all show on the dash. Vehicle had 2747 miles at time this occurred. Systems check on dash showed all tires not registering on the vehicle and the vehicle icon illuminated orange. Vehicle needed to "relearn sensors." Vehicle has several clicking noises in the dash after shutting off. Vehicle brake pedal clicks when depressed at low speeds (as in driving in a parking lot) These noises and issues were not occurring prior to this vehicle stopping at the 2747 miles. Vehicle is unsafe to drive as this is the main stopping system, we were 300 plus miles from home when this happened.

SERVICE BRAKES

Purchased new 25 Traverse. Driving from AR to OK, stopped at a store, parked car. Upon returning to car, start ignition and red "BRAKE" light illuminated as well as ABS, Traction control and forward collision icons all lit. "Service brake assist, service esc, rear auto brake and park assist unavailable" warnings all show on the dash. Vehicle had 2747 miles at time this occurred. Systems check on dash showed all tires not registering on the vehicle and the vehicle icon illuminated orange. Vehicle needed to "relearn sensors." Vehicle has several clicking noises in the dash after shutting off. Vehicle brake pedal clicks when depressed at low speeds (as in driving in a parking lot) These noises and issues were not occurring prior to this vehicle stopping at the 2747 miles. Vehicle is unsafe to drive as this is the main stopping system, we were 300 plus miles from home when this happened.

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

On 6/18/25 vehicle started displaying "Service braking system" and "service electronic stability control" warnings along with warning chimes and various malfunction indicator lights. Malfunction Indicator Lights included service brakes, ABS, and ESC. Vehicle taken to dealer service department on 6/18. Service department has replaced the battery and brake assist module, but the problem persists. GM says to replace the brake master cylinder, but no parts are available. Dealer has impounded the car as a safety concern and has provided a loaner vehicle. Because this involves the service brakes it is a safety concern.

FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

On 6/18/25 vehicle started displaying "Service braking system" and "service electronic stability control" warnings along with warning chimes and various malfunction indicator lights. Malfunction Indicator Lights included service brakes, ABS, and ESC. Vehicle taken to dealer service department on 6/18. Service department has replaced the battery and brake assist module, but the problem persists. GM says to replace the brake master cylinder, but no parts are available. Dealer has impounded the car as a safety concern and has provided a loaner vehicle. Because this involves the service brakes it is a safety concern.

SERVICE BRAKES

On 6/18/25 vehicle started displaying "Service braking system" and "service electronic stability control" warnings along with warning chimes and various malfunction indicator lights. Malfunction Indicator Lights included service brakes, ABS, and ESC. Vehicle taken to dealer service department on 6/18. Service department has replaced the battery and brake assist module, but the problem persists. GM says to replace the brake master cylinder, but no parts are available. Dealer has impounded the car as a safety concern and has provided a loaner vehicle. Because this involves the service brakes it is a safety concern.

UNKNOWN OR OTHER

The transmission system on my 2025 Chevrolet Traverse began showing signs of failure approximately 2–3 months after purchase. Symptoms include erratic shifting, gear hesitation, and sporadic power loss while driving. Although the issue was promptly reported to Chevrolet headquarters, I was unable to bring the vehicle to the dealer earlier due to the lack of available loaner vehicles. The car is now at the dealership and has been there for nearly three weeks without any updates or contact from the service team. The transmission is available for inspection, and documentation of the issue exists. The malfunction has created safety risks during normal driving, including delayed acceleration when merging into traffic and unexpected gear disengagement at speed. These conditions compromise vehicle control and increase the likelihood of a collision. Additionally, the vehicle produces a persistent squeaky noise from the accelerator pedal during operation, which could indicate underlying mechanical stress or a deeper linkage issue. The sound is both distracting and concerning, especially during highway driving or sudden acceleration attempts.

POWER TRAIN

The transmission system on my 2025 Chevrolet Traverse began showing signs of failure approximately 2–3 months after purchase. Symptoms include erratic shifting, gear hesitation, and sporadic power loss while driving. Although the issue was promptly reported to Chevrolet headquarters, I was unable to bring the vehicle to the dealer earlier due to the lack of available loaner vehicles. The car is now at the dealership and has been there for nearly three weeks without any updates or contact from the service team. The transmission is available for inspection, and documentation of the issue exists. The malfunction has created safety risks during normal driving, including delayed acceleration when merging into traffic and unexpected gear disengagement at speed. These conditions compromise vehicle control and increase the likelihood of a collision. Additionally, the vehicle produces a persistent squeaky noise from the accelerator pedal during operation, which could indicate underlying mechanical stress or a deeper linkage issue. The sound is both distracting and concerning, especially during highway driving or sudden acceleration attempts.

ELECTRICAL SYSTEM

The transmission system on my 2025 Chevrolet Traverse began showing signs of failure approximately 2–3 months after purchase. Symptoms include erratic shifting, gear hesitation, and sporadic power loss while driving. Although the issue was promptly reported to Chevrolet headquarters, I was unable to bring the vehicle to the dealer earlier due to the lack of available loaner vehicles. The car is now at the dealership and has been there for nearly three weeks without any updates or contact from the service team. The transmission is available for inspection, and documentation of the issue exists. The malfunction has created safety risks during normal driving, including delayed acceleration when merging into traffic and unexpected gear disengagement at speed. These conditions compromise vehicle control and increase the likelihood of a collision. Additionally, the vehicle produces a persistent squeaky noise from the accelerator pedal during operation, which could indicate underlying mechanical stress or a deeper linkage issue. The sound is both distracting and concerning, especially during highway driving or sudden acceleration attempts.

POWER TRAIN

Vehicle has 4k miles, sudden loss of power at highway speed, rolled to right lane and fortunately had an exit close by. Engine runs and revs fine, could not engage gear (neither D or R), stuck in P. Vehicle had to be towed. Repair took almost 3 weeks, dealer reported trans fluid leak and multiple trans pump bolts loose.

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

Had lights on my dashboard when I turned it on the morning of 6/1/25. Brake light, traction, ABS, and forward collision. Cruise control also stopped working. Brake module needs to be replaced.

FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

Had lights on my dashboard when I turned it on the morning of 6/1/25. Brake light, traction, ABS, and forward collision. Cruise control also stopped working. Brake module needs to be replaced.

SERVICE BRAKES

Had lights on my dashboard when I turned it on the morning of 6/1/25. Brake light, traction, ABS, and forward collision. Cruise control also stopped working. Brake module needs to be replaced.

STEERING

While using self driving on a decided highway I came up on a slower moving vehicle. I was at a 65 mph speed. The turn signal for a left turn came on. My vehicle changed lanes to pass. As I got along side the other vehicle it increased speed. We were then side by side at the same speed. I waited to see what my vehicle was going to do. It then turned on the right turn signal. I believe if I didn’t grab the steering wheel my vehicle would have turned into the other vehicle. Clearly the sensors didn’t detect the car next to me. Thank you for considering this.

SERVICE BRAKES

While driving the vehicle a brake assist and service ESC fault occurred. It flashed on the dashboard. The issue just appeared with no prior warning. This made the brakes very difficult to engage and control. I was driving 50+ MPH down a congested road and almost collided with vehicles in front of me stopping for a traffic light. I had my wife and two small children in the vehicle with me. I made it to a place of business and turned the vehicle off. It would not restart and had no power. It was towed to the dealership. The issue has occurred on two other occasions. Once about a month prior. The vehicle was able to restart and the fault was gone. The first time this happened was right after I purchased the vehicle. It had 500 miles on it. It was serviced by the dealership who replaced the master brake cylinder. The vehicle does not feel safe to drive due to the issue. You loose control of the brakes with no prior warning.

SERVICE BRAKES, HYDRAULIC

The contact owns a 2025 Chevrolet Traverse. The contact stated that while driving 70 MPH during a road trip, the ABS warning light illuminated upon depressing the brake pedal. The contact stated that the messages "Control Module Performance Warning" and "Forward Collision Alert System" were displayed. The contact continued driving, and the brake pedal and steering wheel became stiff. The vehicle was pulled over to the side of the road and restarted. The message "Do Not Drive the Vehicle over 62 MPH" was displayed. The vehicle was taken to a dealer, where it was partially diagnosed that the brake plunger motor temperature was too high, and there was a braking performance failure. The dealer reset unknown sensors, and the contact and his family drove to the destination. The vehicle was taken to another dealer, where it was diagnosed that the brake master cylinder had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 913.

STEERING

The contact owns a 2025 Chevrolet Traverse. The contact stated that while driving 70 MPH during a road trip, the ABS warning light illuminated upon depressing the brake pedal. The contact stated that the messages "Control Module Performance Warning" and "Forward Collision Alert System" were displayed. The contact continued driving, and the brake pedal and steering wheel became stiff. The vehicle was pulled over to the side of the road and restarted. The message "Do Not Drive the Vehicle over 62 MPH" was displayed. The vehicle was taken to a dealer, where it was partially diagnosed that the brake plunger motor temperature was too high, and there was a braking performance failure. The dealer reset unknown sensors, and the contact and his family drove to the destination. The vehicle was taken to another dealer, where it was diagnosed that the brake master cylinder had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 913.

SERVICE BRAKES

Master cylinder failure per Chevy shop. Dash board ESC alert with immediate service needed. No obvious symptoms prior to warning dash alerts. part is delayed no ETA

ELECTRICAL SYSTEM

On June 10th I drove my vehicle to work downtown Cleveland (no issues). Got home around 1 pm and had to leave at 3:30 to get my daughter from school. As I got in my vehicle I started to go in reverse and received all of those notifications and my brakes went completely out and I had to slam it to the floor to stop it was so scary and I thank god I wasn’t on the road or with my children!! I called the dealership the next day and they finally had my vehicle towed on the 12th of June. Once my car was there “the error messages disappeared and it was fine”. I did not feel safe taking the car back so they kept it another day and had the technician driving it around, still nothing until he washed the vehicle then it happened. After doing a ton of my own research others have stated the 2025 traverse has the same issue and they had to get the master cylinder replaced so I mentioned this to them at the dealership. The lady called me back and said I was right. They put me through Hertz for a rental and I found out today they didn’t even order the part until the 20th. This is very frightening and should be a recall immediately! I can’t imagine if I was driving 70 mph and this happened I could’ve died or killed someone else!

SERVICE BRAKES

On June 10th I drove my vehicle to work downtown Cleveland (no issues). Got home around 1 pm and had to leave at 3:30 to get my daughter from school. As I got in my vehicle I started to go in reverse and received all of those notifications and my brakes went completely out and I had to slam it to the floor to stop it was so scary and I thank god I wasn’t on the road or with my children!! I called the dealership the next day and they finally had my vehicle towed on the 12th of June. Once my car was there “the error messages disappeared and it was fine”. I did not feel safe taking the car back so they kept it another day and had the technician driving it around, still nothing until he washed the vehicle then it happened. After doing a ton of my own research others have stated the 2025 traverse has the same issue and they had to get the master cylinder replaced so I mentioned this to them at the dealership. The lady called me back and said I was right. They put me through Hertz for a rental and I found out today they didn’t even order the part until the 20th. This is very frightening and should be a recall immediately! I can’t imagine if I was driving 70 mph and this happened I could’ve died or killed someone else!

ELECTRICAL SYSTEM

Vehicle electronic rearview mirror continues to turn blue during operation and show an animation to flip back to normal mirror of mode. Dealership has looked at and stated known defect no current solution to fix concerns have been noted, but there is nothing to be done. Main touchscreen continues to glitch during operation, causing distracted driving dealership has looked at and stated concerns have been noted, but there is nothing to be done. It is a know defect.

POWER TRAIN

1. Transmission leak. Car towed to dealer on 5/1/25 still there with no resolution. 2. Transmission fluid sprayed from under car which could get on the brake rotors and exhaust system. 3. Confirmed by dealer and GM service 25-NA-001 Transmission Fluid Leak Near Torque Converter dated 3/13/2025. GM shows that the repair should take 13.7 hours. 4. No only by dealer. 5. No warnings or symptoms. After a 100 mile trip we found Transmission fluid leaking in our garage floor. Had the car towed to the dealer on 5/1/25.

SERVICE BRAKES

Car has 1200 miles on it. Turned on and dash lit up with warnings. Took to dealer who confirmed the master cylinder is bad & must be replaced. Worse than that—it is back ordered and I am currently given an estimate of July for the replacement part. Hadn’t even made the first payment on my brand new vehicle before it had to be taken in and now I am without it for an unforeseen amount of time.

SERVICE BRAKES

I JUST bought my car brand new 3 weeks ago. Yesterday as I was driving, my whole brake system just went out. About 6 lights came on the dash and maintenance was flashing. I got it to the nearest Chevy dealer and the Master Cylinder is bad. On A BRAND NEW CAR. A cylinder should last the lifetime of a car…not 3 weeks. The car is not drivable and I am told the parts are back ordered until the end of July. What if my children were in the car when this happened or if I was going 60 mph?? Unacceptable and someone needs to be aware of this!

BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING

Rear cross traffic alert system not working. No alerts when backing up and oncoming traffic

ELECTRICAL SYSTEM

Rear cross traffic alert system not working. No alerts when backing up and oncoming traffic

ENGINE

Purchased car Tuesday, Thursday night upon pressing the start button all power went out on car. Driving to dealership to have car looked at vehicle shutoff completely at traffic light. Vehicle restarted then two miles from dealership car had multiple warnings and brakes completely went out. Managed to get car off the road safely, currently awaiting tow.

ELECTRICAL SYSTEM

Purchased car Tuesday, Thursday night upon pressing the start button all power went out on car. Driving to dealership to have car looked at vehicle shutoff completely at traffic light. Vehicle restarted then two miles from dealership car had multiple warnings and brakes completely went out. Managed to get car off the road safely, currently awaiting tow.

SERVICE BRAKES

Purchased car Tuesday, Thursday night upon pressing the start button all power went out on car. Driving to dealership to have car looked at vehicle shutoff completely at traffic light. Vehicle restarted then two miles from dealership car had multiple warnings and brakes completely went out. Managed to get car off the road safely, currently awaiting tow.

FUEL/PROPULSION SYSTEM

Owned brand new vehicle for 48 hours. Fuel injector failure on cylinder 4 at 120 miles on the dash. Check engine light was on. Vehicle is currently at dealership. Engine unreliable/unsafe. Dealer confirmed. Dealer stated up to 10 days waiting on parts. Unknown if further damage has been caused. Wife states vehicle had a rough idle. Diag code P0300, P050D.

ENGINE

Owned brand new vehicle for 48 hours. Fuel injector failure on cylinder 4 at 120 miles on the dash. Check engine light was on. Vehicle is currently at dealership. Engine unreliable/unsafe. Dealer confirmed. Dealer stated up to 10 days waiting on parts. Unknown if further damage has been caused. Wife states vehicle had a rough idle. Diag code P0300, P050D.

POWER TRAIN

Brand new Traverse with 3,600 miles on it started leaking transmission Fluid. Was told by dealership it was a slow leak and it was ok to drive while waiting for parts to come in. 12 hours later while wife was on highway coming home from work check engine light came on and vehicle went into low speed mode. My wife was able to drift off the highway and come to a stop. There was a puddle of red fluid under the vehicle and the undercarriage and rear of vehicle were covered in transmission fluid. It was towed to dealership on 02/14/25 and we are still awaiting status of the repair.

POWER TRAIN

Hi, I purchased a 2025 Chevy Traverse High Country back at the end of November. It only had 2200 miles on it when my transmission started slipping. I was really enjoying this SUV too. On January 13th I noticed something weird happening when I would accelerate. When I would accelerate if felt like my tires were slipping on ice followed by a jerk. I knew it wasn't ice after accelerating at each stop. This worried me because my 10 month old son was in the vehicle with me. I was worried it was going to stop mid traffic. I drove it home and called the dealer and asked them to get me a loaner ASAP because the Traverse felt unsafe to drive. Luckily I got a loaner that same evening after dropping it off. When I returned home I saw the tranny leak on garage floor. A large reddish pink puddle. It's been in the shop since Monday. The Service department is trying to find parts to repair it. According to them they won't be available from GM until February 28th, unless they find it elsewhere. According to them it needs two bolts that are backing out of pump causing it to leak. Cars been in the shop now 11 days and counting. This is a big safety concern that needs to be made aware of to the public. People are purchasing this vehicle without knowing there's possible issues with the transmission. There definitely needs to be a recall on this transmission until they figure which ones are affected by this problem.

POWER TRAIN

The contact owns a 2025 Chevrolet Traverse. The contact stated while driving at approximately 70 MPH, the RPM revved up to the "RED Zone". The contact stated that the accelerator pedal was not depressed at the time of the failure. The contact stated that the "Check Engine" and "Reduced Speed and Traction" warning lights were illuminated. The contact stated that the vehicle was losing motive power. The contact pulled off the highway turned off and restarted the vehicle. The contact stated that the vehicle was able to shift to drive (D); however, the vehicle was hesitating while accelerating. The contact stated that while shifting into gear the vehicle jolted. The contact stated that the check engine warning light was illuminated. The contact had driven the vehicle back to the residence and became aware in the morning that there was a puddle of transmission fluid underneath the middle of the vehicle. The contact had taken the vehicle to a local dealer. The vehicle was not yet diagnosed or repaired. The manufacturer was informed of the failure. The failure mileage was approximately 3,000.

POWER TRAIN

I was driving down the interstate in 3 lane traffic at approx. 70MPH. Car had 1,700 miles on it at the time. Engine abruptly reduced power and the RPMs shot up to 6000. It was a struggle to not get rear ended and get to the shoulder. With cars on either side this could have been a very different outcome. Upon getting to the shoulder the car would no longer go into gear. Dealer diagnosed it as a transmission failure and would need a new transmission. There was transmission fluid all under the car.