NHTSA lists 4 safety recalls and 210 owner complaints for the 2021 Toyota Sienna (including the hybrid).
Recalled components: mobility equipment, seats, air bags, and stability control. Most-described problem: unintended acceleration or surging (24 complaints, 11%). Most-reported area: brakes (89 complaints, 42%).
More complaints than most Sienna years
The 2021 drew 97 owner complaints in its first three years, against about 52 for a typical Sienna year: 1.8 times as many. It is not a year to avoid, which takes at least twice the typical count and at least 50 complaints.
Years to avoid: 2011; best years: 2018 and 2019. Based on owner complaints, not adjusted for sales.
The retractors may not lock, preventing the wheelchair from being properly secured.
Risk: An unsecured wheelchair can move during transit, increasing the risk of injury.
The fix and full notice
Fix: 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.
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.
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 Systems."
Risk: An improperly tightened seatback may not adequately restrain the occupant during a crash, increasing their risk of injury.
The fix and full notice
Fix: 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.
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 air bag from deploying.
Risk: An air bag that does not deploy during a crash increases the risk of injury.
The fix and full notice
Fix: 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 Lexus 23LB03/23LA03.
NHTSA listing: SIENNA HYBRID. Toyota campaign 23TA15, 23LA03.
Stability control
Apr 13, 2022
control module · software
Fails federal standard 126 (electronic stability control)
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 Vehicle Safety Standard number 126, "Electronic Stability Control Systems."
Risk: Driving with a deactivated stability control system increases the risk of a crash.
The fix and full notice
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.
NHTSA listings: SIENNA, SIENNA HYBRID. Toyota campaign 22TA03, 22LA01.
Questions about any of these recalls: call NHTSA's Vehicle Safety Hotline at 888-327-4236 (TTY 888-275-9171) or check your VIN at nhtsa.gov/recalls.
NHTSA investigations
NHTSA's investigations file, dated Nov 12, 2026, lists no investigations for the 2021 Toyota Sienna.
What owners report
Owners have filed 210 complaints with NHTSA about the 2021 Sienna. Below, they are sorted by the problems owners describe and by the areas NHTSA files them under. NHTSA does not verify complaints.
A complaint can name more than one area, so shares add up to more than 100%.
Toyota Sienna recalls and complaints by model year
The highlighted bars are the 2021 model year. Newer model years have had less time on the road, so their counts are lower. Counting complaints filed in each model year's first three years, the 2011 Sienna drew the most (136) and the 2021 drew 97.
Owner complaints
2021: 210 complaintsTap or drag across the chart for other years.
Show as a table
Owner complaints by model year, Toyota Sienna
Model year
Complaints
2010
172
2011
615
2012
247
2013
183
2014
164
2015
233
2016
76
2017
160
2018
73
2019
47
2020
39
2021
210
2022
141
2023
71
2024
72
2025
271
2026
21
Safety recalls
2021: 4 recallsTap or drag across the chart for other years.
Show as a table
Safety recalls by model year, Toyota Sienna
Model year
Recalls
2010
8
2011
14
2012
9
2013
6
2014
6
2015
6
2016
5
2017
10
2018
7
2019
7
2020
2
2021
4
2022
5
2023
3
2024
4
2025
6
2026
1
Crash test ratings
NHTSA's 5-Star Safety Ratings for each version it tested. Rollover risk is NHTSA's estimate of the chance of rolling over in a single-vehicle crash.
In the 210 owner complaints filed with NHTSA for the 2021 Toyota Sienna, the problems described most are unintended acceleration or surging (24), jerking, lurching or harsh shifting (21), and brake failure or a soft or hard pedal (7). NHTSA does not verify complaints, and one complaint can describe several problems.
Is the 2021 Toyota Sienna safe?
In NHTSA crash tests every tested version of the 2021 Toyota Sienna earns 5 stars overall. The table above lists each tested version.
Is NHTSA investigating the 2021 Toyota Sienna?
No. NHTSA's investigations file, dated Nov 12, 2026, lists no investigations for the 2021 Toyota Sienna.
How do I check if my Sienna has an open recall?
Enter the 17-character VIN from your dashboard, door jamb or registration at nhtsa.gov/recalls. The lookup lists unrepaired recalls for that exact vehicle. Safety recall repairs are free at Toyota dealers.
Sources and method
NHTSA recalls file (NHTSA datasets), dated Nov 12, 2026; every campaign checked against NHTSA's recalls API.
NHTSA owner complaints file, dated Nov 11, 2026. Counted by complaint number, so a complaint naming three components counts once in the total.
NHTSA investigations file, dated Nov 12, 2026. Defect petitions, which ask NHTSA to open an investigation, are listed apart and only while open. Audit queries, which check whether a company met its recall and reporting duties rather than whether a vehicle has a problem, are not listed.
NHTSA 5-Star Safety Ratings (NCAP).
NHTSA model names covered: SIENNA, SIENNA HYBRID.
Complaint counts are unverified owner reports. They rise with sales volume and time on the road, so compare model years with care. How we build these pages. Spotted an error? Tell us.