2021 Toyota Redundant Sienna problems, complaints & recalls
Most-reported problem areas: Service Brakes (64) · Seats (14) · Air Bags (12)
Safety recalls (1)
Electronic Stability Control (Esc):control Module:software 2022-04-13 · campaign 22V239000 · 458,110 vehicles
Defect: Toyota Engineering & Manufacturing (Toyota) is recalling certain 2022 Lexus LX 600, Lexus NX 350h, Lexus NX 450h+, Toytoa RAV4 Hybrid, 2021-2022 Lexus LS 500h, Toyota Mirai, RAV4 PRIME, Sienna, Venza, and 2020-2022 Toyota Highlander Hybrid vehicles. The Skid Control ECU software may not turn on the Vehicle Stability Control (VSC) system when the vehicle is restarted after the driver has disabled the VSC system. As such, these vehicles fail to comply with the requirements of Federal Motor Vehic
Risk: Driving with a deactivated stability control system increases the risk of a crash.
Fix: Dealers will update the Skid Control ECU software, free of charge. Owner notification letters were mailed May 27, 2022. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's number for this recall is 22TA03. Lexus' number for this recall is 22LA01.
Service bulletins (43)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Unknown Or Other 2024-12-19 · LSB006523 · Service Bulletin/Repair Instructions
tt: engine oil leak between the lower oil pan and crank case
Structure:body 2024-12-06 · T-SB-0039-24 Rev2 · Service Bulletin/Repair Instructions
the condition known as acid rain is caused by airborne chemicals or particles in the atmosphere, which mix with rainwater, nighttime dew, or high humidity to form acidic compounds. if these contaminants settle and remain on a painted vehicle surface, especially the horizonal areas of the hood, roof,
Structure:body 2024-12-06 · T-SB-0038-24 Rev2 · Service Bulletin/Repair Instructions
to prevent brake rotor rust from forming during transportation and storage, wheel film will be used instead of a cardboard type of anti-rust cover. the purpose of the wheel film is to shield the disc brake rotor from weather elements and initial rust before the vehicle is delivered to the customer.
Structure:body 2024-12-06 · T-SB-0035-24 Rev2 · Service Bulletin/Repair Instructions
acid rain results from rainwater or other airborne moisture that become acidic due to industrial chemical impurities in the atmosphere. if these acidic compounds settle on an exposed vehicle, especially the horizontal areas such as the hood, roof, and decklid, significant damage to the painted surfa
Structure:body 2024-12-05 · T-SB-0061-23 Rev2 · Service Bulletin/Repair Instructions
toyota vehicles are currently protected with rapgardtm protective film designed to protect the horizontal painted surfaces. this material protects from acid rain, environmental fallout, and rail contamination. follow the removal procedure in this bulletin to remove the rapgardtm protective film wi
Structure:body 2024-12-03 · T-SB-0062-23 Rev2 · Service Bulletin/Repair Instructions
vehicles may occasionally be subjected to contamination by airborne iron particles shed from railroad tracks, train wheels, exposure to heavy machinery facilities, grinding, welding, etc. this type of contamination can be identified by the presence of small, red or brown particles on the paint surfa
Showing the 6 most recent of 43 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-02-04 · Air Bags“this complaint is submitted to supplement and clarify a prior nhtsa submission regarding safety recall 23ta15 for vin [xxx] . the prior submission was brief and did not fully capture the timeline and circumstances described below. i purchased a 2021 toyota sienna (vin [xxx] ) from avondale toyota on [xxx]. at the time of purchase, i was not informe…”
2026-02-04 · Air Bags“subject: vehicle safety complaint – recall 23ta15 | vin [xxx] hello, i am submitting a formal vehicle safety complaint regarding safety recall 23ta15 for my 2021 toyota sienna (vin [xxx] ). please find my detailed complaint and supporting documentation attached. this matter involves lack of disclosure and/or delayed notification of a safety recal…”
2026-02-02 · Fuel/Propulsion System“i was driving my toyota sienna on a busy 6 lane highway in the second to the left lane, on a bridge. suddenly without any warning at all, my vehicle lost all power and came to an abrupt halt in the middle of high speed traffic. my wife and children were all in the car and we were in imminent danger of getting hit by another vehicle. it took the pol…”
2026-01-21 · Engine“i turned on my minivan to drive my kids to school when i heard a sudden loud metal shredding/knocking and shut my van off. all maintenance was performed regularly on the van and no lights were on. i have a hole in my engine block now caused by a thrown rod, and no mechanic can explain why this happened. oil was in good condition, and nothing indica…”
2026-01-18 · Structure:body“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 c…”
2025-12-20 · Visibility:rearview Mirrors/Devices:exterior“the driver’s side door mirror shakes when going down the road. the image in the mirror becomes shaky. the passenger side is fine, this is only on the driver side. i have brought this into the dealer, but they said it is normal. in 30+ years of driving cars, i have never had a car mirror do this.…”
2025-10-24 · Air Bags · 30,000 mi“the contact owns a 2021 toyota sienna. the contact received notification of nhtsa campaign number: 23v865000 (air bags). however, the part to do the recall repair was not yet available. the contact stated that the air bag sensor turned off and failed to function as intended. the local dealer was not contacted. the contact stated that the manufactur…”
2025-09-27 · Service Brakes“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. …”
2025-09-17 · Air Bags“it has been 22 months since the recall (nhtsa number 23v865) and over a year since the expected remedy date. what is the status update? what is causing the delay?…”
2025-09-17 · Seats“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…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.