Verdict
2021 Toyota Sienna: Complaints, Recalls & Known Issues
What the public record actually says about the 2021 Toyota Sienna — every figure below is a NHTSA or EPA number, not an opinion.
The read
Middle-of-the-pack complaint volume for minivan.
Owners filed 34 NHTSA complaints — fewer complaints than 50% of 2021 minivans. Air Bags leads the reports (35%). 2 safety recall campaigns on record — check the VIN and remedy terms with a dealer.
Based on NHTSA complaint volume against 2021 minivans, not adjusted for how many were sold. It describes the model year, not the individual car you are looking at.
Complaints filed
34
Reports to NHTSA, 2021
Safety recalls
2
NHTSA campaigns on record
NHTSA crash test
Not rated
Overall NCAP rating
Combined MPG
35.5
EPA estimate
Complaint volume vs. segment peers
Fewer complaints than 50% of 2021 minivans
The bar is this car's percentile among 2021 minivans by complaint volume — a full bar means the fewest complaints in its class. Not adjusted for sales.
Known issues
Air Bags issues lead owner complaints (35% of 34 reports), followed by service brakes (9%).
+ 5 more component categories with fewer reports.
Share of all 34 NHTSA complaints for this model year, grouped by the component owners named. Bars are scaled to the largest category. Examples: ODI 11740978, ODI 11737555, ODI 11678695, ODI 11675432, ODI 11644161.
Recalls(2)
Open a recall to read what NHTSA says is wrong, what can happen, and how it gets fixed. Check the VIN and remedy eligibility with a dealer; federal no-charge requirements have an age limit, though a manufacturer may offer more coverage.
Electronic Stability Control (ESC) · 22V239000Details +Close −
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.
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.
Equipment Adaptive/Mobility · 25V877000Details +Close −
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.
Risk: 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.
A campaign can apply to this model year without being incomplete on a specific vehicle. Check the VIN with NHTSA or a dealer to confirm whether a particular car needs repair.
Investigations
0 NHTSA investigations on record
No investigations are on record as of Jul 2026. An empty record is not a clean bill of health.
Crash-test ratings
No NHTSA crash test is on record for this year. Some vehicles and model years were not tested or do not have a published NCAP result.
Fuel economy by trim
| Trim | Engine | Drivetrain | Transmission | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| Sienna Hybrid 2WD | 2.5L 4-cyl | Front-Wheel Drive | Automatic (AV-S6) | 36 | 36 | 36 |
| Sienna Hybrid AWD | 2.5L 4-cyl | All-Wheel Drive | Automatic (AV-S6) | 35 | 36 | 35 |
EPA laboratory estimates by trim and engine. Actual mileage varies with driving, weather, load, and maintenance. EPA source.
Before you buy
Useful next checks
Federal records tell you about patterns. These checks can tell you more about the specific car in front of you.
These are affiliate links. TireKick may earn a fee if you use one.
Compare model years
"Fewest reports" and "most complained" describe raw NHTSA complaint totals, not vehicle reliability. The last few model years are left unlabelled because they have had less road time.
2021 Toyota Sienna: frequently asked
What does the complaint record show for the 2021 Toyota Sienna?
Owners filed 34 NHTSA complaints about the 2021 Toyota Sienna — fewer complaints than 50% of comparable 2021 minivans, so it sits toward the stronger end of its class. That's a signal, not a guarantee about any single car.
What are the most common problems on the 2021 Toyota Sienna?
The most-reported problem areas are Air Bags (35% of complaints) and service brakes (9%).
How many recalls does the 2021 Toyota Sienna have?
2 recalls have been issued that affect the 2021 Toyota Sienna, covering components such as electronic stability control (esc). Check the VIN with NHTSA and ask a dealer to confirm remedy eligibility; federal no-charge requirements have an age limit, though manufacturers may offer more coverage.
What gas mileage does the 2021 Toyota Sienna get?
The EPA rates the 2021 Toyota Sienna between 35 and 36 mpg combined, depending on trim and drivetrain.