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2021 Toyota Sienna Hybrid Recalls & Complaints

2

open safety recalls on record

Serious

50 owner complaints filed · Severity Index 0.30 · updated 2026-08-07

The recalls

Serious23V865000

Air Bags:Sensor:Occupant Classification

air bag that does not deploy during a crash raises the risk of injury.

Remedy & full details

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.

Serious25V086000

Seats:Mid/Rear Assembly:Recliner

improperly tightened seatback may not adequately restrain the occupant during a crash, increasing their risk of injury.

Remedy & full details

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."

Complaint volume

50 this model-year 7 median, same year

Volume alone is not a fault rate — popular vehicles attract more reports. Read it next to the severity mix below.

What owners reported happened

0Crashes
1Fires
3Injuries
0Deaths

Across 50 complaints. Severity Index 0.30.

Severity Index weights each complaint's reported outcome (death ×10, injury ×4, fire ×3, crash ×2) and divides by total complaints. It measures how severe reports are, not how often faults occur.

What owners report most

Air Bags12 · 24%Service Brakes5 · 10%Visibility/Wiper4 · 8%Engine3 · 6%Seats3 · 6%Unknown Or Other3 · 6%Exterior Lighting2 · 4%Power Train2 · 4%
  1. Air Bags — 12 reports
  2. Service Brakes — 5 reports
  3. Visibility/Wiper — 4 reports
  4. Engine — 3 reports
  5. Seats — 3 reports
  6. Unknown Or Other — 3 reports
  7. Exterior Lighting — 2 reports
  8. Power Train — 2 reports
  9. Suspension — 2 reports
  10. Electrical System — 2 reports

What to do

  1. Find your 17-character VIN on the driver's door jamb or the base of the windscreen.
  2. Check it against NHTSA's official lookup at nhtsa.gov/recalls — the authoritative record for your exact car.
  3. Book the repair with any franchised dealer. Safety recall work is free, with no time limit and regardless of who owns the car now.

Other model years

2021 · 2022 (1) · 2023 (1) · 2024 (2) · 2025 (4) · 2026

Numbers in brackets are open recall campaigns for that year.

Questions

Does an open recall mean the car is unsafe to drive?

Not usually. NHTSA issues a "do not drive" or "park outside" advisory when a defect is dangerous enough to keep you out of the car — those are flagged Critical above. Everything else should be repaired promptly but is not an immediate stop-driving order.

Do I pay for recall repairs?

No. Federal law requires the manufacturer to fix a safety recall free of charge, including parts and labour, whether or not you are the original owner.

Why are there complaints but no recalls?

Complaints are unverified reports filed by owners. They can prompt an investigation, but many never become recalls — either the fault isn't safety-related or it isn't widespread.