When braking to a stop at low speed (stopping at stop sign or at light), then car accelerates forward even though my foot is on the brake attempting to slow the car down. This unintended acceleration is dangerous and can cause an accident.
2021 Toyota Redundant Sienna brakes problems
80 complaints (48% of all complaints for this car). 8 crashes reported.
- owner complaints
- 80
- of this car's complaints
- 48%
- crashes
- 8
- recalls
- 0
Which part fails
Owners did not name a specific part.
At what mileage
Complaints by mileage at the time of the problem.
0k-25k
25k-50k
50k-75k
75k-100k
100k-125k
125k-150k
150k-175k
175k-200k
200k+
Toyota Redundant Sienna brakes problems in other years
Specific symptoms reported on the 2021 Toyota Redundant Sienna brakes
Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.
Related recalls
No recalls on record for this model year.
What 2021 Toyota Redundant Sienna owners say
Most recent owner complaints, unedited.
When braking downhill, the car will lurch forward causing me to have to break harder.
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.
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)
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.
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.
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.
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
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.
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.
Questions about the 2021 Toyota Redundant Sienna brakes
Does the 2021 Toyota Redundant Sienna have brakes problems?
Owners have filed 80 complaints about the brakes of the 2021 Toyota Redundant Sienna, 48% of all its complaints, more than any other problem.
At what mileage do 2021 Toyota Redundant Sienna brakes problems start?
Not enough complaints include the mileage to tell.
Was there a recall on the 2021 Toyota Redundant Sienna brakes?
There is no recall for this problem on this model year.
What year does the Toyota Redundant Sienna have bad brakes?
The Toyota Redundant Sienna model years with the most brakes complaints are 2021 (80 complaints) and 2022 (62 complaints).
Other 2021 Toyota Redundant Sienna problems
Seats 17Airbags 16Electrical 13Acceleration 10Engine 8Seat belts 8Transmission 8Body 6Driver assistance 6Visibility 6Fuel system 5Steering 3Suspension 2Tires 2Lights 1Locks 1
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