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2021 Toyota Sienna Hybrid
Solid pick — the complaint record is strong for its age. It does carry safety recalls, so confirm every one shows "remedy completed" on the VIN before money changes hands.
34 owner complaints · 2 recalls · data verified July 10, 2026 · source: NHTSA
Why buy?
Airbags problems dominate (35% of complaints).
Very few owner complaints for its age and sales volume.
Complaints are overwhelmingly minor — almost none involve crashes, fires, or injuries.
The math, shown
Full methodology →Complaints filed per year
Fading = early teething worked out. Climbing = problems aging in.
The road ahead
What breaks on a 2021 Toyota Sienna Hybrid, plotted where owners report it happening.
Also reported (mileage varies): Airbags (12) · Brakes (5) · Visibility & wipers (5)
Mileage medians come from owners who mentioned an odometer reading in their NHTSA complaint — a rough guide, not a schedule.
Airbags
35%12 complaints · 10 in the last 2 years
“Unknown, I got the SRS Airbag system malfunction in my vehicle, I got the same error in my vehicle dashboard a few times in the past but it would go away and since yes…”
Brakes
15%5 complaints · 3 in the last 2 years
“The car jerks when coming to a stop. Like when the regenerative system is disengaged it jerks. For the Adaptive cruise control the car will accelerate instead of braki…”
Visibility & wipers
15%5 complaints
“The contact owns a 2021 Toyota Sienna Hybrid. The contact stated that the passenger's side rearview mirror detached and the rear liftgate door inadvertently opened whi…”
Engine
9%3 complaints · 2 in the last 2 years
“TL* THE CONTACT OWNS A 2021 TOYOTA SIENNA HYBRID. THE CONTACT STATED WHILE ATTEMPTING TO MAKE A RIGHT TURN WITH THE ACCELERATOR PEDAL DEPRESSED, THE VEHICLE FAILED TO …”
Recalls (2)
Safety recall repairs are free at the brand’s franchised dealers. Before buying, run the VIN at nhtsa.gov/recalls and make the seller show the work was done.
Seats · 25V086000
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 · 23V865000
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.
Before you hand over money
Verify the recall work was done
NHTSA’s free lookup shows whether this exact car had its recall remedies completed.
Free NHTSA VIN check ↗Get a pre-purchase inspection
A $150–$250 independent inspection of this exact 2021 Toyota SIENNA HYBRID beats every score on the internet, including ours.
What to ask forNot set on the 2021? See how every Sienna Hybrid model year scores →
Cross-shopping? Compare the 2021 Toyota Sienna Hybrid against another car →
What owners say
Real owners of this exact model-year, shown separately from the NHTSA score — if they disagree, that’s worth knowing.