2024 HYUNDAI SONATA

ELECTRICAL SYSTEM:HORN

The contact owns a 2024 Hyundai Sonata. The contact stated that while operating the vehicle the horn had become inoperable and no audible sound occurred while pressed. The cause of the failure was not yet determine and the failure was not yet repaired. The local dealer was notified of the failure. The manufacturer was not yet contacted. The VIN was not available. The failure mileage was 16,000.

LANE DEPARTURE: ASSIST

Complaint ID: 11667442 Vehicle: 2024 Hyundai Sonata Mileage: 20,000 (approx.). Update Summary: This update concerns the persistent, severe Electronic Stability Control (ESC) steering malfunction previously reported. Current Status of Issue: The ESC steering defect remains unresolved. The vehicle was taken to an authorized Hyundai dealership on July 15, 2025, for re-diagnosis. The technician reported being unable to find any fault, despite the clear, dangerous, and recurring symptoms of steering control loss and near-collisions. The vehicle is still unsafe to operate due to this unaddressed safety hazard. Manufacturer's Response: During this recent service visit, Hyundai continued to refuse to provide a loaner vehicle for the diagnostic and repair period. This refusal places the driver at extreme risk due to the necessity of driving a vehicle with a known, uncorrected safety defect that has already failed a previous recall repair (performed June 6, 2025, RO 41686321 ). Impact: The vehicle's safety is severely compromised. The persistent ESC defect, combined with the manufacturer's inability to diagnose/repair it and refusal to provide safe alternative transportation, necessitates immediate intervention.

STEERING

Complaint ID: 11667442 Vehicle: 2024 Hyundai Sonata Mileage: 20,000 (approx.). Update Summary: This update concerns the persistent, severe Electronic Stability Control (ESC) steering malfunction previously reported. Current Status of Issue: The ESC steering defect remains unresolved. The vehicle was taken to an authorized Hyundai dealership on July 15, 2025, for re-diagnosis. The technician reported being unable to find any fault, despite the clear, dangerous, and recurring symptoms of steering control loss and near-collisions. The vehicle is still unsafe to operate due to this unaddressed safety hazard. Manufacturer's Response: During this recent service visit, Hyundai continued to refuse to provide a loaner vehicle for the diagnostic and repair period. This refusal places the driver at extreme risk due to the necessity of driving a vehicle with a known, uncorrected safety defect that has already failed a previous recall repair (performed June 6, 2025, RO 41686321 ). Impact: The vehicle's safety is severely compromised. The persistent ESC defect, combined with the manufacturer's inability to diagnose/repair it and refusal to provide safe alternative transportation, necessitates immediate intervention.

ELECTRICAL SYSTEM

Complaint ID: 11667442 Vehicle: 2024 Hyundai Sonata Mileage: 20,000 (approx.). Update Summary: This update concerns the persistent, severe Electronic Stability Control (ESC) steering malfunction previously reported. Current Status of Issue: The ESC steering defect remains unresolved. The vehicle was taken to an authorized Hyundai dealership on July 15, 2025, for re-diagnosis. The technician reported being unable to find any fault, despite the clear, dangerous, and recurring symptoms of steering control loss and near-collisions. The vehicle is still unsafe to operate due to this unaddressed safety hazard. Manufacturer's Response: During this recent service visit, Hyundai continued to refuse to provide a loaner vehicle for the diagnostic and repair period. This refusal places the driver at extreme risk due to the necessity of driving a vehicle with a known, uncorrected safety defect that has already failed a previous recall repair (performed June 6, 2025, RO 41686321 ). Impact: The vehicle's safety is severely compromised. The persistent ESC defect, combined with the manufacturer's inability to diagnose/repair it and refusal to provide safe alternative transportation, necessitates immediate intervention.

ENGINE

After a dealer-installed software update on my 2024 Hyundai Sonata sel awd, the car began jerking during acceleration and shifting. This happens at low and moderate speeds and creates an unsafe hesitation, especially in traffic. This issue did not exist before the update. I believe the software update affected the transmission or engine control calibration. The dealership has not resolved the issue, and it poses a safety concern. Please investigate whether this is linked to a faulty update affecting other Sonata vehicles.

POWER TRAIN

After a dealer-installed software update on my 2024 Hyundai Sonata sel awd, the car began jerking during acceleration and shifting. This happens at low and moderate speeds and creates an unsafe hesitation, especially in traffic. This issue did not exist before the update. I believe the software update affected the transmission or engine control calibration. The dealership has not resolved the issue, and it poses a safety concern. Please investigate whether this is linked to a faulty update affecting other Sonata vehicles.

UNKNOWN OR OTHER

After a dealer-installed software update on my 2024 Hyundai Sonata sel awd, the car began jerking during acceleration and shifting. This happens at low and moderate speeds and creates an unsafe hesitation, especially in traffic. This issue did not exist before the update. I believe the software update affected the transmission or engine control calibration. The dealership has not resolved the issue, and it poses a safety concern. Please investigate whether this is linked to a faulty update affecting other Sonata vehicles.

POWER TRAIN

My car tends to jerk very hard two to three times on cold start up and I’ve read that the previous years have had this issue. They are still the same mechanically so I do not know why my year does not have a recall for it

BACK OVER PREVENTION: WARNINGS

Vehicle: 2024 Hyundai Sonata. Current Mileage: 17,804 Primary Safety Defect: Electronic Stability Control (ESC) Steering Malfunction The vehicle's ESC system has a severe, intermittent malfunction causing unpredictable loss of steering control. This defect creates an extreme safety hazard. Occurrences include the vehicle veering unexpectedly towards highway medians and losing steering precision during turns and roundabouts, leading to multiple near-collision incidents. The vehicle is currently considered unsafe to operate. Relevant History: This ESC concern was subject to a manufacturer recall. An authorized Hyundai dealership performed the "ESC SOFTWARE LOGIC UPDATE (24-01-065H-1)" on June 6, 2025. Despite this specific recall repair, the severe ESC steering issue has persisted and recurred multiple times since that date, indicating a failure of the repair to permanently resolve the safety defect. Secondary Safety Defect: Inaudible Parking Collision Assistance The vehicle's parking collision assistance system is non-functional. Its audible warnings are inaudible and have never worked as designed since vehicle acquisition. This eliminates a critical safety feature intended to prevent low-speed parking collisions. Finally, The combination of a critical, recurring ESC steering defect, unaddressed by a recall repair, and a continuously inaudible parking collision assistance system, renders this vehicle highly unsafe to drive. Immediate investigation and permanent resolution are required.

LANE DEPARTURE: ASSIST

Vehicle: 2024 Hyundai Sonata. Current Mileage: 17,804 Primary Safety Defect: Electronic Stability Control (ESC) Steering Malfunction The vehicle's ESC system has a severe, intermittent malfunction causing unpredictable loss of steering control. This defect creates an extreme safety hazard. Occurrences include the vehicle veering unexpectedly towards highway medians and losing steering precision during turns and roundabouts, leading to multiple near-collision incidents. The vehicle is currently considered unsafe to operate. Relevant History: This ESC concern was subject to a manufacturer recall. An authorized Hyundai dealership performed the "ESC SOFTWARE LOGIC UPDATE (24-01-065H-1)" on June 6, 2025. Despite this specific recall repair, the severe ESC steering issue has persisted and recurred multiple times since that date, indicating a failure of the repair to permanently resolve the safety defect. Secondary Safety Defect: Inaudible Parking Collision Assistance The vehicle's parking collision assistance system is non-functional. Its audible warnings are inaudible and have never worked as designed since vehicle acquisition. This eliminates a critical safety feature intended to prevent low-speed parking collisions. Finally, The combination of a critical, recurring ESC steering defect, unaddressed by a recall repair, and a continuously inaudible parking collision assistance system, renders this vehicle highly unsafe to drive. Immediate investigation and permanent resolution are required.

STEERING

Vehicle: 2024 Hyundai Sonata. Current Mileage: 17,804 Primary Safety Defect: Electronic Stability Control (ESC) Steering Malfunction The vehicle's ESC system has a severe, intermittent malfunction causing unpredictable loss of steering control. This defect creates an extreme safety hazard. Occurrences include the vehicle veering unexpectedly towards highway medians and losing steering precision during turns and roundabouts, leading to multiple near-collision incidents. The vehicle is currently considered unsafe to operate. Relevant History: This ESC concern was subject to a manufacturer recall. An authorized Hyundai dealership performed the "ESC SOFTWARE LOGIC UPDATE (24-01-065H-1)" on June 6, 2025. Despite this specific recall repair, the severe ESC steering issue has persisted and recurred multiple times since that date, indicating a failure of the repair to permanently resolve the safety defect. Secondary Safety Defect: Inaudible Parking Collision Assistance The vehicle's parking collision assistance system is non-functional. Its audible warnings are inaudible and have never worked as designed since vehicle acquisition. This eliminates a critical safety feature intended to prevent low-speed parking collisions. Finally, The combination of a critical, recurring ESC steering defect, unaddressed by a recall repair, and a continuously inaudible parking collision assistance system, renders this vehicle highly unsafe to drive. Immediate investigation and permanent resolution are required.

UNKNOWN OR OTHER

Vehicle suddenly accelerated after pulling out of store parking lot at low speed into side street behind vehicle stopped at light (less than a car length in front) while pressing hard on brake. Vehicle lurched forward incrementally during the braking process, but vehicle kept accelerating causing vehicle to hit stopped vehicle numerous times before vehicle engine was finally turned off. Driver of both vehicles could have been seriously hurt. Vehicle was driven home after this incident without incident but has only been driven out of garage and onto and off towing truck. Car has not been inspected except for damage to vehicle and is currently awaiting insurance rep inspection at vehicle repair facility. Once damage is repaired car will be towed to dealership for inspection. Because of the short distance vehicle traveled no warning lamps/messages were noted.

VEHICLE SPEED CONTROL

Vehicle suddenly accelerated after pulling out of store parking lot at low speed into side street behind vehicle stopped at light (less than a car length in front) while pressing hard on brake. Vehicle lurched forward incrementally during the braking process, but vehicle kept accelerating causing vehicle to hit stopped vehicle numerous times before vehicle engine was finally turned off. Driver of both vehicles could have been seriously hurt. Vehicle was driven home after this incident without incident but has only been driven out of garage and onto and off towing truck. Car has not been inspected except for damage to vehicle and is currently awaiting insurance rep inspection at vehicle repair facility. Once damage is repaired car will be towed to dealership for inspection. Because of the short distance vehicle traveled no warning lamps/messages were noted.

POWER TRAIN

Vehicle suddenly accelerated after pulling out of store parking lot at low speed into side street behind vehicle stopped at light (less than a car length in front) while pressing hard on brake. Vehicle lurched forward incrementally during the braking process, but vehicle kept accelerating causing vehicle to hit stopped vehicle numerous times before vehicle engine was finally turned off. Driver of both vehicles could have been seriously hurt. Vehicle was driven home after this incident without incident but has only been driven out of garage and onto and off towing truck. Car has not been inspected except for damage to vehicle and is currently awaiting insurance rep inspection at vehicle repair facility. Once damage is repaired car will be towed to dealership for inspection. Because of the short distance vehicle traveled no warning lamps/messages were noted.

VEHICLE SPEED CONTROL

I have gone 3 times to dealer because speedometer was off. They confirmed that the speedometer was off but they couldn't do anything about it. They told me that for this car, there is no VSS and the speedometer gets the speed from the navigation system. The navigation system is obviously glitching which is causing this. I am not the only person experiencing this. This has to be taken care of and taken seriously

POWER TRAIN

I have gone 3 times to dealer because speedometer was off. They confirmed that the speedometer was off but they couldn't do anything about it. They told me that for this car, there is no VSS and the speedometer gets the speed from the navigation system. The navigation system is obviously glitching which is causing this. I am not the only person experiencing this. This has to be taken care of and taken seriously

ELECTRICAL SYSTEM

I have gone 3 times to dealer because speedometer was off. They confirmed that the speedometer was off but they couldn't do anything about it. They told me that for this car, there is no VSS and the speedometer gets the speed from the navigation system. The navigation system is obviously glitching which is causing this. I am not the only person experiencing this. This has to be taken care of and taken seriously

FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

I have not had accident in vehicle. There is a driver attention warning feature in the 2024-2025 Hyaundai vehicles that can not be turned off. They were able to be turned off in previous models. Because of the over sensitivity of the feature it creates a distraction while driving. It triggers activation after 10 minutes of driving and goes off if you’re swerving or wearing sunglasses, etc. a number of reasons. However, while I have been driving perfectly fine, it continues to go off and beep every 5 or so minutes. No swerving. Both hands on wheel. The feature isn’t a bad idea but needs to be less sensitive and able to be turned off. Going off so consistently creates a distraction to me while driving. I could see there potentially being many lawsuits regarding this due to accidents. I have spoken to multiple Hyaundai dealerships and they all say there is nothing they can do.

FORWARD COLLISION AVOIDANCE: WARNINGS

I have not had accident in vehicle. There is a driver attention warning feature in the 2024-2025 Hyaundai vehicles that can not be turned off. They were able to be turned off in previous models. Because of the over sensitivity of the feature it creates a distraction while driving. It triggers activation after 10 minutes of driving and goes off if you’re swerving or wearing sunglasses, etc. a number of reasons. However, while I have been driving perfectly fine, it continues to go off and beep every 5 or so minutes. No swerving. Both hands on wheel. The feature isn’t a bad idea but needs to be less sensitive and able to be turned off. Going off so consistently creates a distraction to me while driving. I could see there potentially being many lawsuits regarding this due to accidents. I have spoken to multiple Hyaundai dealerships and they all say there is nothing they can do.

UNKNOWN OR OTHER

My car when shut off and restart will show the wrong speed. I am not the only person who has been dealing with this and you can look up 2024 hyundai sonata n line speedometer and a reddit post will come up with other people dealing with this. Hyundai is not willing to deal with this even after proving it was off

STRUCTURE:BODY

I’m reporting a serious safety issue with my 2024 Hyundai Sonata. After a routine service at Koons Hyundai of Woodbridge in late February, the under-engine splash shield detached and dragged under the vehicle while I was driving on the highway. Upon inspection, it was clear that the splash shield was not secured with any screws or clips — it was either improperly installed during service or never fastened at all. This caused the shield to flap violently at high speeds before tearing off entirely. It posed a serious hazard to me and other drivers on the road. When I brought the issue to the dealership, they refused responsibility, falsely claimed it was caused by scratches (despite no such damage before the failure), and told me and my wife that we are no longer welcome for service. A part like this should never fall off a new vehicle, especially after a recent service. This could have caused a major accident if it hit another vehicle or interfered with my driving. I am requesting NHTSA to review this case for possible service negligence or manufacturing defect, and ensure future safety.

VEHICLE SPEED CONTROL

I purchased this vehicle brand new off of the lot February 2024. Since then, I have had two incidents where in the middle of driving my vehicle has completely shut off. The first experience, I was driving 50+ mph. First my headlights went out, my engine shut off, my dashboard shut off, and I was cruising without power or control over my vehicle for about 5 seconds before everything turned back on. I took my car to the dealership where they “could not confirm concern” after driving around for 15 miles trying to recreate the issue. They stated no codes or issues were shown on their end and returned the car to me. 6 months later during late October, my car did the same thing. I was driving 40+ mph and my car shut off in the middle of me driving. I contacted my dealership to inform them it happened again. They told me they did not have any available appointments to bring my car in. Out of frustration I did not bring it in until a few weeks ago for a regular check up. I gave them the exact date and time that my vehicle shut off and they again could not find the issue that caused the car to turn off. I was informed by a Hyundai representative that he anticipates this issue getting worse as it happened twice in the first year of owning it. That when it happens again to get my car towed by Hyundai roadside assistance and straight to the dealership. As stated, I lose complete control of the vehicle. Luckily both instances I have been on a straight road but I have concerns that this could happen at the wrong time leaving my injured.

ELECTRICAL SYSTEM

I purchased this vehicle brand new off of the lot February 2024. Since then, I have had two incidents where in the middle of driving my vehicle has completely shut off. The first experience, I was driving 50+ mph. First my headlights went out, my engine shut off, my dashboard shut off, and I was cruising without power or control over my vehicle for about 5 seconds before everything turned back on. I took my car to the dealership where they “could not confirm concern” after driving around for 15 miles trying to recreate the issue. They stated no codes or issues were shown on their end and returned the car to me. 6 months later during late October, my car did the same thing. I was driving 40+ mph and my car shut off in the middle of me driving. I contacted my dealership to inform them it happened again. They told me they did not have any available appointments to bring my car in. Out of frustration I did not bring it in until a few weeks ago for a regular check up. I gave them the exact date and time that my vehicle shut off and they again could not find the issue that caused the car to turn off. I was informed by a Hyundai representative that he anticipates this issue getting worse as it happened twice in the first year of owning it. That when it happens again to get my car towed by Hyundai roadside assistance and straight to the dealership. As stated, I lose complete control of the vehicle. Luckily both instances I have been on a straight road but I have concerns that this could happen at the wrong time leaving my injured.

ENGINE

I purchased this vehicle brand new off of the lot February 2024. Since then, I have had two incidents where in the middle of driving my vehicle has completely shut off. The first experience, I was driving 50+ mph. First my headlights went out, my engine shut off, my dashboard shut off, and I was cruising without power or control over my vehicle for about 5 seconds before everything turned back on. I took my car to the dealership where they “could not confirm concern” after driving around for 15 miles trying to recreate the issue. They stated no codes or issues were shown on their end and returned the car to me. 6 months later during late October, my car did the same thing. I was driving 40+ mph and my car shut off in the middle of me driving. I contacted my dealership to inform them it happened again. They told me they did not have any available appointments to bring my car in. Out of frustration I did not bring it in until a few weeks ago for a regular check up. I gave them the exact date and time that my vehicle shut off and they again could not find the issue that caused the car to turn off. I was informed by a Hyundai representative that he anticipates this issue getting worse as it happened twice in the first year of owning it. That when it happens again to get my car towed by Hyundai roadside assistance and straight to the dealership. As stated, I lose complete control of the vehicle. Luckily both instances I have been on a straight road but I have concerns that this could happen at the wrong time leaving my injured.

UNKNOWN OR OTHER

The DAW (Driver Attention Warning) system is obtrusive and a distraction to safe driving. The alert makes an audible "Beep" and the drivers display lights up with a warning to "Take a break". This alert will continue every 5 minutes if on a winding road until the car is stopped and the engine is turned off. When operating the vehicle in a safe manner keeping my eyes on the road and having the beeping and warning lights distracting me is quite the opposite of its intended purpose. In previous year models this could be turned off by the owner. This is not so with the 2024, 2025 models. This is not isolated to this vehicle but a search of the internet will find many frustrated owners all voicing their concerns. A safety alert system should not become a safety hazard. The dealer has no solution. The alert system cannot be turned off or it's sensitivity adjusted. The manufacturer has so far not responded to my complaints.

EXTERIOR LIGHTING

The automatic high beams feature seems to work through the camera by the rearview mirror. But the issue is when this camera is blocked, all of the safety systems that use the camera will be disabled as they normally will be since the camera cannot see, but the automatic high beams function will still stay on, the indicator light for it will be green meaning that the system is operating normally. As a result of this, the automatic high beam system keeps the high beams on at ALL times because it thinks that it is dark enough because it doesn’t see any light through the camera. This could potentially increase the risk of a crash because the driver may not realize that the high beams are NOT turning off when approaching another vehicle or when a vehicle is coming the opposite direction, which can blind other drivers on the road. This needs a recall to resolve this problem.