2021 Toyota Sienna Hybrid Problems, Complaints & Recalls
- Compared with other Sienna Hybrid years
- Fewer complaints than other years 4th of 6 for complaints
- Safety recalls
- 4 recalls: check your VIN
- NHTSA crash rating
- 5 out of 5 stars
Owners have filed 45 complaints with NHTSA about the 2021 Toyota Sienna Hybrid. That ranks 4th out of 6 Sienna Hybrid model years for complaints. The most reported problem area is air bags (13 complaints, 29%). Complaints mention 1 fire, 1 injury. There are 4 safety recalls covering this model year. NHTSA has opened 1 defect investigation involving it.
- 45owner complaints
- 4safety recalls
- 1NHTSA investigations
- 0complaints mentioning a crash
Complaints are unverified owner reports and are not adjusted for sales volume.
Most common 2021 Toyota Sienna Hybrid problems
Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.
| Problem area | Complaints | Share | Median miles | Owners mention most | Typical repair cost |
|---|---|---|---|---|---|
| Air Bags | 13 | 29% | — | — | — |
| Service Brakes | 8 | 18% | — | — | — |
| Seats | 5 | 11% | 60,000 | — | — |
| Structure | 5 | 11% | 22,500 | — | — |
| Electrical System | 4 | 9% | 50,300 | — | — |
| Visibility/wiper | 4 | 9% | 473 | — | — |
| Engine | 3 | 7% | 40,050 | — | — |
| Unknown or Other | 3 | 7% | — | — | — |
| Exterior Lighting | 2 | 4% | 2,000 | — | — |
| Power Train | 2 | 4% | — | — | — |
| Suspension | 2 | 4% | — | — | — |
| Back Over Prevention | 1 | 2% | — | — | — |
| Forward Collision Avoidance | 1 | 2% | — | — | — |
| Fuel/propulsion System | 1 | 2% | — | — | — |
| Lane Departure | 1 | 2% | — | — | — |
| Latches/locks/linkages | 1 | 2% | 9,000 | — | — |
| Service Brakes, Hydraulic | 1 | 2% | 30,800 | — | — |
| Tires | 1 | 2% | 37,000 | — | — |
| Visibility | 1 | 2% | 9,000 | — | — |
One complaint can list several problem areas, so shares can add up to more than 100%.
Complaints by year received
2021 Toyota Sienna Hybrid recalls (4)
Tap a recall to see the problem, the risk and the fix.
Equipment adaptive/mobility:wheelchair restraints/securement:latch/anchor:
Problem: 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.
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.
Seats:mid/rear assembly:recliner; seats:critical fasteners
Problem: 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.
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.
Air bags:sensor:occupant classification
Problem: 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.
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.
Electronic stability control (esc):control module:software
Problem: 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.
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.
To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.
NHTSA defect investigations
- Pedestrian alert sounds (DP22005) — opened Jan 27, 2023, closed Aug 7, 2023, led to recall 22V063000.
Recent owner reports
Short excerpts of the latest complaints filed with NHTSA, with personal details removed. Full reports can be searched on NHTSA.gov.
I purchased my 2021 Toyota Sienna Hybrid new in March 2021. For several years I have had an intermittent braking problem: when I apply the brakes, especially while slowing down or driving downhill, the vehicle sometimes lurches or feels like it suddenly accelerates forward instead of slowing. I…
This is a supplemental correction to my NHTSA complaint #XXX (2021 Toyota Sienna Hybrid, VIN [XXX]). The description of the brake defect itself is unchanged; I am correcting the service-history details. First dealer visit: the correct date is XXX, at approximately 41,192 miles, Repair Order #XXX…
The front passenger door lock actuator does not work properly causing the door to stay locked or unlocked despite attempts to change the door lock through the internal power locking system or remote key. This presents a safety issue in that it requires a manual lock/unlocking of the door should an…
The rear power liftgate hinges on my 2021 Toyota Sienna failed structurally under normal, everyday operation. The power liftgate motor and struts appear to exert uneven or excessive pressure on the rear hatch assembly, causing the metal hinges to crack. Before the failure, we noticed a loud…
brake sleeps sometime when i press brake pedal i took car to dealer once,they said need time i did not have much time took another time, they reseted system still... my warranty is over now. rear seat,make shake noise and check rear seat sign on dealer can't find problem. did not do anything since…
Other Toyota Sienna Hybrid years
| Year | Complaints | Recalls |
|---|---|---|
| 2026 Sienna Hybrid | 17 | 0 |
| 2025 Sienna Hybrid | 267 | 5 |
| 2024 Sienna Hybrid | 69 | 3 |
| 2023 Sienna Hybrid | 70 | 2 |
| 2022 Sienna Hybrid | 21 | 4 |
| 2021 | 45 | 4 |
See all Toyota Sienna Hybrid problems by year, every Toyota model, or the Toyota VIN decoder.
Similar Toyota models
Embed this 2021 Toyota Sienna Hybrid badge on your site
Copy this code into your blog or forum post. It shows live complaint and recall counts and links back here.
Frequently asked questions
What are the most common problems with the 2021 Toyota Sienna Hybrid?
Owners most often report air bags, service brakes, seats problems. The top one, air bags, accounts for 13 complaints.
Was there a recall on the 2021 Toyota Sienna Hybrid?
Yes, 4 safety recalls. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.
Was the 2021 Toyota Sienna Hybrid a good year?
Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other Sienna Hybrid model years, the 2021 has fewer complaints than most years, and NHTSA rates it 5 out of 5 stars overall in crash tests. Always get a pre-purchase inspection and check the VIN for open recalls.