2021 Toyota Redundant Sienna seats & seat belts problems

Related recalls

No recalls on file.

What owners say

1. Filed Jan 18, 2026CABody & StructureSeats & Seat Belts

   I purchased a 2021 Toyota Sienna from United Access Mobility in Sacramento. The vehicle was sold and delivered with multiple serious pre-existing safety defects. The exhaust system was unsafe. The catalytic converter had been stolen prior to sale and replaced with a non-OEM catalytic converter that was improperly welded and mounted too low. This caused exhaust leaks, loud exhaust noise, poor acceleration, and safety concerns including potential exhaust exposure. Multiple…

   NHTSA complaint #11711719 · source
2. Filed Sep 17, 2025NCSeats & Seat Belts

   2nd row passenger seat recline does not work. My seat is very reclined now causing the 2nd row passenger to not be in the optimal position for SRS airbag performance that may result in possible death due to head impact during a side collision. Toyota likely has enough data to issue a TSB to resolve this issue preventing serious injury or death to one of my children.

   NHTSA complaint #11687905 · source
3. Filed Aug 19, 2025WAAirbagsOther / UnknownSeats & Seat Belts

   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,…

   NHTSA complaint #11681746 · source
4. Filed May 2, 2025TXBrakesSeats & Seat BeltsVisibility & Wipers

   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

   NHTSA complaint #11658450 · source
5. Filed Mar 25, 2025MDSeats & Seat Belts

   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…

   NHTSA complaint #11650424 · source
6. Filed Mar 11, 2025INSeats & Seat Belts

   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…

   NHTSA complaint #11647760 · source
7. Filed Jul 17, 2024MNAirbagsSeats & Seat Belts

   This recall has been open for 7 months and a remedy has still not been issued - this doesn’t seem reasonable for a safety concern. I have also several times experienced a failure in the “extra” 8th passenger seat (middle row middle seat) sensor - it alarms that the seat belt isn’t buckled even when that seat is not in use and not even installed at the time.

   NHTSA complaint #11603010 · source
8. Filed Jul 3, 2024NJSeats & Seat Belts

   the bottom/floor of the center console between the 2 front seats getting warm or hot everytime I drive the car for a while

   NHTSA complaint #11598548 · source
9. Filed May 12, 2024CABrakesSeats & Seat Belts

   2 issues to report 1) when under medium consistent breaking(slowing down for a light) there are instances where the breaks feel like they let up or slipping. This issue has been reported and with the car since the first year of ownership but Toyota says it’s all within spec 2) second issue is an issue with the rear captions seatbelt and has also been reported since 2022 where upon normal driving the seatbelt locks up and the car has to be stopped and seatbelt unbuckled to…

   NHTSA complaint #11588342 · source
10. Filed Feb 7, 2024INSeats & Seat Belts

    The contact's client owns a 2021 Toyota Sienna. The contact stated that she was unable to place a car seat in either of the outboard third row positions due to the angle of the seat edge. There was more than twenty percent of the car seat hanging off the edge. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was unknown. The VIN was not available.

    NHTSA complaint #11570491 · source
11. Filed Feb 6, 2024CAOther / UnknownSeats & Seat Belts

    Recall: OCS Sensors May Short Circuit; 3TB15/23TA15 ; I am a owner of 2021 Sienna Hybrid (VIN [XXX] ) and was getting alert for the airbag and seat belt warning even when plugged in. I took it to a dealer in Sunnyvale California (Stevens Creek Toyota; 4202 Stevens Creek Blvd San Jose, CA 95129; [phone removed]) and they are not recognizing the recall. I was charged a diagnostics fee of $ 899.93 and am being asked to pay $ 2000 to replace the car seat to fix the issues. Your…

    NHTSA complaint #11570280 · source
12. Filed Sep 8, 2023MISeats & Seat Belts

    Third Row Seats does not stay stowed and while driving over a hump the seats ended up moving away from the potential stowed position and locked itself in the upright position. the noise was so loud that we thought something had banged on the car, but then we realized that the seat had just moved to the upright position. a little bit of research indicated other drivers reporting the same issue without any fix until date. The risk is if the seat decides to move and there is…

    NHTSA complaint #11543420 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology