2021 Toyota Sienna Recalls, Problems & MPG
NHTSA lists 4 safety recalls and 45 owner complaints for the 2021 Toyota Sienna. The EPA rates it 35 to 36 MPG combined, depending on engine and drivetrain.
- Recalls
- 4
- Owner complaints
- 45
- Crashes / fires reported
- 0 / 1
- EPA combined
- 35–36 MPG
2021 Toyota Sienna recalls
Equipment Adaptive/MobilityDec 17, 2025 · NHTSA 25V877000+
Risk: An unsecured wheelchair can move during transit, increasing the risk of injury.
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. The retractors may not lock, preventing the wheelchair from being properly secured.
SeatsFeb 13, 2025 · NHTSA 25V086000+
Risk: An improperly tightened seatback may not adequately restrain the occupant during a crash, increasing their risk of injury.
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 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."
Air BagsDec 20, 2023 · NHTSA 23V865000+
Risk: An air bag that does not deploy during a crash increases the risk of injury.
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.
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.
Electronic Stability Control (ESC)Apr 13, 2022 · NHTSA 22V239000+
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.
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."
Recall repairs are free. Enter your VIN at nhtsa.gov/recalls to see if yours still needs one.
Most reported 2021 Toyota Sienna problems
Owner complaints to NHTSA by system. One complaint can name more than one system.
- Air Bags13
- Service Brakes9
- Structure5
- Seats5
- Electrical System4
- Visibility/Wiper4
- Unknown or Other3
- Engine3
2021 Toyota Sienna gas mileage
EPA ratings for each version (city / highway / combined).
| Version | Engine | City | Hwy | Comb. | Fuel / yr |
|---|---|---|---|---|---|
| Sienna Hybrid 2WD | 2.5 L 4 cyl, Automatic (AV-S6) | 36 | 36 | 36 | $1,800 |
| Sienna Hybrid AWD | 2.5 L 4 cyl, Automatic (AV-S6) | 35 | 36 | 35 | $1,850 |
Real-world mileage depends on how and where you drive. Logbay compares your actual MPG with these EPA numbers.
Questions
Does the 2021 Toyota Sienna have any recalls?
Yes. NHTSA lists 4 recalls for the 2021 Toyota Sienna, most recently for the equipment adaptive/mobility (Dec 17, 2025). Recall repairs are free at a dealer; check your VIN at nhtsa.gov/recalls.
What are the most common 2021 Toyota Sienna problems?
Owners filed 45 complaints with NHTSA. The most reported areas are air bags (13), service brakes (9), structure (5).
What gas mileage does the 2021 Toyota Sienna get?
The EPA rates the 2021 Toyota Sienna at 35 to 36 MPG combined (best version: 36 city / 36 highway).
Sources: NHTSA recalls and owner complaints (api.nhtsa.gov), EPA fuel economy (fueleconomy.gov). Updated Oct 26, 2026. Complaint counts are unverified owner reports.