2021 TOYOTA SIENNA

UNKNOWN OR OTHER

I purchased a 2021 Toyota Sienna (VIN: [XXX] ) from an authorized Toyota dealer in June 2024. At the time of sale, I was assured that the open safety recall (23TA15) would be repaired soon. More than a year later, no remedy has been offered, leaving me and my family driving an unsafe vehicle. Toyota’s own phase schedule indicates repairs should already be available in Washington State, yet I have been repeatedly told no repair exists. This has caused serious safety concerns, financial hardship, and loss of trust. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

SEATS

I purchased a 2021 Toyota Sienna (VIN: [XXX] ) from an authorized Toyota dealer in June 2024. At the time of sale, I was assured that the open safety recall (23TA15) would be repaired soon. More than a year later, no remedy has been offered, leaving me and my family driving an unsafe vehicle. Toyota’s own phase schedule indicates repairs should already be available in Washington State, yet I have been repeatedly told no repair exists. This has caused serious safety concerns, financial hardship, and loss of trust. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

AIR BAGS

I purchased a 2021 Toyota Sienna (VIN: [XXX] ) from an authorized Toyota dealer in June 2024. At the time of sale, I was assured that the open safety recall (23TA15) would be repaired soon. More than a year later, no remedy has been offered, leaving me and my family driving an unsafe vehicle. Toyota’s own phase schedule indicates repairs should already be available in Washington State, yet I have been repeatedly told no repair exists. This has caused serious safety concerns, financial hardship, and loss of trust. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

2021 Sienna Hybrid Platinum AWD ~65K miles. Safety Issue: Fogging of windows increased, as AC was not working properly. Believe rear AC lines had galvanic corrosion from differing metals, steel bracket with aluminum line-sets causes corrosion hole in refrigerant line set, and leak causing loss of all Freon. No warning lights or messages, AC just stop blowing cold. Vehicle is driven in Michigan on winter roads with road salt, but stored in garage and only 4 years old. $1742 fix to replace line-sets, which can corrode again without proper design fix. Problem confirmed by dealer, and seen in other similar year Sienna's.

SERVICE BRAKES

When braking downhill, the car will lurch forward causing me to have to break harder.

AIR BAGS

It has been almost 2 years and a remedy is not yet available?? I don’t feel safe in this car without this being fixed!

POWER TRAIN

sound coming from engine / transmission other issues with the 2 ruber seals on the minivan keep worping out i looked on all the forms everyone is making the same complaint i toook it to toyota they just put tape and its off again they didnt help for a perminent fix back door is miss alined pasanger side sliding door sometimes does not close takes 3-4 atempts pressing the button

FUEL/PROPULSION SYSTEM

sound coming from engine / transmission other issues with the 2 ruber seals on the minivan keep worping out i looked on all the forms everyone is making the same complaint i toook it to toyota they just put tape and its off again they didnt help for a perminent fix back door is miss alined pasanger side sliding door sometimes does not close takes 3-4 atempts pressing the button

ENGINE

sound coming from engine / transmission other issues with the 2 ruber seals on the minivan keep worping out i looked on all the forms everyone is making the same complaint i toook it to toyota they just put tape and its off again they didnt help for a perminent fix back door is miss alined pasanger side sliding door sometimes does not close takes 3-4 atempts pressing the button

SERVICE BRAKES

Brake Transition Issues: I have noted frequent jolts of power when braking, which creates at least the sensation of, if not actual acceleration while breaking. Web research suggests this may be linked to the vehicle switching between regenerative and mechanical braking systems, and that the problem is acute with 2021 and 2022 Toyota Siennas, which, if accurate, means Toyota has applied a fix to subsequent model years, but has not systematically addressed the first two years of the current Sienna generation.

SERVICE BRAKES

Occasionally the brakes seem to stop working briefly, and the van even accelerates while the brakes are engaged. It happened again today but has happened since we got the van new in 2021. The dealer cannot replicate the problem. The problem is discussed on this thread: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

SERVICE BRAKES

When braking, the brakes will unexpectedly slip. There is generally a loss of brake and a split-second surge that is rather like acceleration (since the car is no longer being slowed down by the brakes). This occurs unexpectedly, unpredictably and without any warning. Having the car suddenly move forwards without brakes is dangerous and could cause the car to hit a pedestrian or another car. This has also happened multiple times while angle parking which almost caused a collision. Two Toyota dealers and a Firestone Tire Center have been unable to replicate the braking issue and tell me that there is no problem with the braking system. I have had both of them inspect the car multiples times, and the issue continues to happen.

SERVICE BRAKES

Car accelerating when braking especially at slow speed. This has happend many times and dealership not aware of a solution for this issue. This acceleration do not happen all the time but happens radmonly. Concerned about safety and hence reporting.

SERVICE BRAKES

When slowing down the brakes work at first, but the slip and the vehicle rolls freely, then once you press them harder it engages and brakes. But for about 2 seconds there is no breaking! This has happened several times prior to today.

VISIBILITY/WIPER

My van been giving me some weird issues lately. When I’m going downhill, my brakes don’t seem to work well! I have to push it all the way down, like a spongy. It doesn’t break until I put on the emergency brake. the seat broke only weighed 185 pounds! the wiper blades don’t do a great job cleaning the driver’s side after I bought new ones. Dealership wipers

SEATS

My van been giving me some weird issues lately. When I’m going downhill, my brakes don’t seem to work well! I have to push it all the way down, like a spongy. It doesn’t break until I put on the emergency brake. the seat broke only weighed 185 pounds! the wiper blades don’t do a great job cleaning the driver’s side after I bought new ones. Dealership wipers

SERVICE BRAKES

My van been giving me some weird issues lately. When I’m going downhill, my brakes don’t seem to work well! I have to push it all the way down, like a spongy. It doesn’t break until I put on the emergency brake. the seat broke only weighed 185 pounds! the wiper blades don’t do a great job cleaning the driver’s side after I bought new ones. Dealership wipers

UNKNOWN OR OTHER

While driving at 60 mph with all windows up, the sunroof spontaneously exploded. No vehicles near me, no debris in roadway, 70 degrees and sunny.

POWER TRAIN

When pulling into a shopping center parking space, my mother applied the brakes to slow down, but the vehicle seemed to surge and hit the car in front. It then surged again and pushed that car into another. No airbags deployed, and no one was injured, but someone could have been hurt either by the van itself or one of the other 2 vehicles. The dealer is scheduled to look at the vehicle, but stated on the phone that they "hadn't heard of this happening". There were no warning lights showing. My daughter stated that after the impact, she looked at my mother's feet, and her foot was clearly on the brake. I looked on the internet later, and found several threads of people complaining about their Toyota Sienna hybrids doing similar things.

SERVICE BRAKES

When pulling into a shopping center parking space, my mother applied the brakes to slow down, but the vehicle seemed to surge and hit the car in front. It then surged again and pushed that car into another. No airbags deployed, and no one was injured, but someone could have been hurt either by the van itself or one of the other 2 vehicles. The dealer is scheduled to look at the vehicle, but stated on the phone that they "hadn't heard of this happening". There were no warning lights showing. My daughter stated that after the impact, she looked at my mother's feet, and her foot was clearly on the brake. I looked on the internet later, and found several threads of people complaining about their Toyota Sienna hybrids doing similar things.

SEATS

I am writing to report a significant safety concern involving the second-row seat in the 2021 Toyota Sienna. The issue involves the seat base not locking securely into the floor. As a result, the seat remains unstable and sits at approximately a 45-degree angle, rendering it unsafe and unusable. This malfunction poses a serious risk to passengers, especially during braking or a collision, as the seat is not properly anchored. It also prevents the safe installation of a child car seat or booster. Despite this being a clear safety issue, there has been no recall issued by Toyota, and customer reports online suggest this is not an isolated incident. The inability of a seat to lock into its designated position is a fundamental failure in vehicle safety design. The vehicle has not been inspected and no warning of the issue was given.

SEATS

Toyota Sienna has 3rd row seats recall already. While I was at dealership I explained that second seats are also rattling when they were fixing the 3rd row recall. My concern is that since they have safety concerns on that they should investigate all the seats for safety.because I’m experiencing second row issues with my vehicle. Terrible dealership! Called corporate office Toyota they were also no help! Please! please!. My request please have Toyota investigate the second row seats as well..

SERVICE BRAKES

I was driving home from the grocery store going roughly 40 mph. I turned into a turn lane going into our neighborhood and started to press the break. Instead of breaking my car accelorated. It happened quickly, maybe 2 seconds. But it was very concerning. A warning flashed on my dash board that said, "break accelorating." I continued to push the break and started to slow down.

Chest Clip, Buckle, Harness

Child vomited in car seat. I removed cover to clean it and noticed seatbelt is torn in three places! It appears to have rubbed against some of the seam on the padding and slowly ripped.

AIR BAGS

Toyota has been aware of an occupant classification sensor defect since at least December 2023. Their automated systems state the remedy should be available by 2024 Q3. And yet we were in Feb 2025 and no remedy is available. I don’t think they intend to fix this at all, leaving me with a car that is not safe to use the passenger seat.

AIR BAGS

Recall 23TB15 was issued on Dec. 20, 2023. The remedy was supposed to be out by the 3Q24. I just called dealer service, and there is still not a remedy out. I am driving a car without knowing if the front passenger seat airbag would deploy in an accident. This is unacceptable to go this long with no corrective action plan yet issued. Can you take any action to get the manufacturer to correct this defect?

POWER TRAIN

Turned on my minivan to begin backing out of the driveway when it began violently shaking and exploded. Was not due for an oil change, was not low on oil, passed an engine inspection 5 days prior. 2 holes through engine block caused by either connecting rod or piston