NHTSA lists 208 complaints for the 2021 Toyota Sienna, 14 of them mention a crash and 4 mention a fire. 8 complaints mention an injury, with 12 injuries and 0 deaths reported.
Data build 2026-10-09.
NHTSA lists this vehicle as TOYOTA SIENNA.
Model-generated complaint tags
These labels are model-generated, not NHTSA data.
Failure modes| Label | Count | Share of tagged | Mean confidence |
|---|
| loss of control | 91 | 43.8% | 0.93 |
|---|
| restraint or airbag | 38 | 18.3% | 0.87 |
|---|
| mechanical failure | 26 | 12.5% | 0.73 |
|---|
| electrical electronic | 20 | 9.6% | 0.79 |
|---|
| unclear | 10 | 4.8% | 0.98 |
|---|
| visibility or lighting | 7 | 3.4% | 0.98 |
|---|
| fire or overheating | 6 | 2.9% | 0.93 |
|---|
| structural or corrosion | 6 | 2.9% | 0.73 |
|---|
| noise or comfort | 4 | 1.9% | 0.77 |
|---|
Severities| Label | Count | Share of tagged | Mean confidence |
|---|
| moderate | 146 | 70.2% | 0.87 |
|---|
| low | 34 | 16.3% | 0.67 |
|---|
| high | 19 | 9.1% | 0.92 |
|---|
| none | 6 | 2.9% | 0.90 |
|---|
| critical | 3 | 1.4% | 0.92 |
|---|
Model: typesafe/jev-1.13-20260917; schema version: tag-v1. 208 tagged complaints of 208 complaints (100.0%).
Confidence is the model's own probability for the label it chose (0 to 1), not accuracy.
Model-generated labels on tagged complaints only. Model years 2013 and newer are tagged in full; 2012 in part (see tagged_share); earlier model years have no tags. NHTSA's own flags remain separate in the complaints block.
Recalls
See new recalls and investigations this week.
4 recalls.
Date: 2025-12-17. Systems: EQUIPMENT ADAPTIVE/MOBILITY.
Defect: Vantage Mobility, LLC (VM) is recalling certain 2021-2026 Honda Odyssey, 2021-2025 Chrysler Pacifica, and Toyota Sienna vehicles equipped with QRT-Deluxe and QRT-Max wheelchair restraints. The retractors may not lock, preventing the wheelchair from being properly secured.
Consequence: An unsecured wheelchair can move during transit, increasing the risk of injury.
Remedy: Dealers will inspect and replace the retractors, free of charge. Owner notification letters was mailed January 27, 2026. Owners may contact Vantage Mobility customer service at 1-800-488-9082.
Do not drive: No. Park outside: No.
Date: 2025-02-13. Systems: SEATS.
Defect: Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2021-2025 Sienna Hybrid vehicles. The bolts for the seatbacks on the third-row seat assemblies may not be tightened properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numbers 202, "Head Restraints," 207, "Seating Systems," and 225, "Child Restraint Anchorage (excerpt)
Consequence: An improperly tightened seatback may not adequately restrain the occupant during a crash, increasing their risk of injury. (excerpt)
Remedy: Dealers will tighten the seat assembly bolts, free of charge. Owner notification letters were mailed April 1, 2025. Owners may contact Toyota's customer service at 1-800-331-4331. Toyota's number for this recall is 25TA05. (excerpt)
Do not drive: No. Park outside: No.
Date: 2023-12-20. Systems: AIR BAGS.
Defect: Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2020-2021 Avalon, Avalon Hybrid, Corolla, Highlander, Highlander Hybrid, RAV4, RAV4 Hybrid, Lexus ES350, Lexus RX350, Lexus RX450H, 2021 Sienna Hybrid, Lexus ES250, 2020-2022 Camry, Camry Hybrid, and ES300H vehicles. A short circuit may develop in the Occupant Classification System (OCS) sensor, preventing the front passenger (excerpt)
Consequence: An air bag that does not deploy during a crash increases the risk of injury. (excerpt)
Remedy: Dealers will inspect and replace the sensor as necessary, free of charge. Interim letters notifying owners of the safety risk were mailed in February 2024. Some final remedy owner letters were mailed October 31, 2024. Letters will continue to be mailed in phases through January 2026. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's number for this recall is 23TB15/23TA15 Le (excerpt)
Do not drive: No. Park outside: No.
Date: 2022-04-13. Systems: ELECTRONIC STABILITY CONTROL (ESC).
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 (excerpt)
Consequence: Driving with a deactivated stability control system increases the risk of a crash. (excerpt)
Remedy: 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. (excerpt)
Do not drive: No. Park outside: No.
Manufacturer communications
186 manufacturer communications.
Communications by system| System | Count |
|---|
| ELECTRICAL SYSTEM | 58 |
|---|
| EQUIPMENT | 40 |
|---|
| STRUCTURE | 32 |
|---|
| ENGINE | 28 |
|---|
| ENGINE AND ENGINE COOLING | 18 |
|---|
| BACK OVER PREVENTION | 6 |
|---|
| FORWARD COLLISION AVOIDANCE | 6 |
|---|
| HYBRID PROPULSION SYSTEM | 4 |
|---|
11037201
Date: 2026-08-20. Type: Service Bulletin/Repair Instructions. Systems: ENGINE.
This bulletin includes basic procedures for performing a rescue charge at battery on high voltage (HV) Ni-MH and Li-ion batteries.
11037202
Date: 2026-08-20. Type: Service Bulletin/Repair Instructions. Systems: ENGINE.
OBSOLETE NOTICE August 20, 2026: This bulletin is now obsolete. Please see T-SB-0051-26.
11037186
Date: 2026-08-11. Type: Warranty Program/Extension. Systems: ENGINE.
Although the flow shut-off valve is covered by Toyotaa s New Vehicle Limited Warranty for 36 months or 36,000 miles (whichever comes first), we at Toyota care about the customersa ownership experience. Toyota is providing coverage for repairs related to Flow Shut-off Valve Coolant Leak.
11033412
Date: 2026-05-14. Type: Warranty Program/Extension. Systems: ELECTRICAL SYSTEM.
Although the HV Floor Under Wire Harness and Rear Traction Motor Cable is covered by Toyotaa s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever comes first), we at Toyota care about the customersa ownership experience. Toyota is providing extended coverage under this Customer S
11029896
Date: 2026-02-27. Type: Service Bulletin/Repair Instructions. Systems: ENGINE.
OBSOLETE NOTICE February 27, 2026: This bulletin is no longer applicable and is now obsolete.
11028726
Date: 2026-01-30. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.
OBSOLETE NOTICE January 30, 2026: This bulletin is now obsolete. Please see T-SB-0001-26.
11028722
Date: 2026-01-28. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.
Some 2018 a 2024 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System require a Special Service Tool (SST) USB flash drive to update the map, points of interest, and system software.
11028712
Date: 2026-01-07. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
Some 2005 a 2026 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate the odor and address this condition. The purpose of this Service Bulletin is to provide general guidelines and procedur
11028711
Date: 2026-01-06. Type: Warranty Program/Extension. Systems: ELECTRICAL SYSTEM.
Although the HV Floor Under Wire Harness and Rear Traction Motor Cable is covered by Toyotaa s New Vehicle Limited Warranty for 3 years or 36,000 miles (whichever comes first), we at Toyota care about the customersa ownership experience. Toyota is providing extended coverage under this Customer S
11027555
Date: 2025-12-02. Type: Service Bulletin/Repair Instructions. Systems: STRUCTURE.
Some customers may experience a condition in which the 2021-2025 Sienna HV 2nd row FRAME SUB-ASSY, No.1 does not function even when the stow lever is pulled. Because the cable has come off from the bracket that holds it inside.