2021 Toyota Sienna Hybrid · symptom sheet
Airbag warning light or recall
- 29owner reports
- 2involved a crash
Newest report Aug 27, 2026 · checked Sep 27, 2026
29 of the 208 complaints on this car describe airbag. Only brake wear is reported more often on this car.
Tick what matches of 29 reports
Airbag on other Sienna Hybrid years
No other Sienna Hybrid model year has enough reports of airbag for a sheet of its own. See every Sienna Hybrid year.
What this problem usually is
Airbag complaints split into a few kinds. The most common is an airbag warning light that won't go out. Others involve the passenger seat sensor switching the passenger bag off with an adult sitting there, an airbag that didn't deploy in a crash, or one that went off without a crash at all. A large share also come from owners waiting on a recall part.
What got replaced
Owners who name the part that was replaced mention the occupant sensor (11 reports).
Recalls and investigations
One recall on the airbags covers the 2021 model year. A recall on the same system isn't always the same failure, so read the defect text.
A short circuit may develop in the Occupant Classification System (OCS) sensor, preventing the front passenger air bag from deploying.
All 4 recalls on the 2021 Toyota Sienna Hybrid, with the owner complaints on each recalled system
When it happens
Too few of these reports state a mileage to give a range.
Is this a known problem?
The manufacturer has sent NHTSA 1 service bulletin or notice for the 2021 Toyota Sienna Hybrid that deal with this problem. Newest first.
Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.
Some 2005 ? 2022 model year Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty smell is present. Follow the procedures in this bulletin to remediate the odor and address this condition.
What owners wrote
“It has been 22 months since the recall (NHTSA Number 23V865) and over a year since the expected remedy date. What is the status update? What is causing the delay?”
Filed Sep 17, 2025
“It has been almost 2 years and a remedy is not yet available?? I donât feel safe in this car without this being fixed!”
Filed Jul 28, 2025
“Toyota has been aware of an occupant classification sensor defect since at least December 2023. Their automated systems state the remedy should be available by 2024 Q3. And yet we were in Feb 2025 and no remedy is available. I donât think they intend to fix this at all, leaving me with a car that is not safe to use the passenger seat.”
Filed Feb 15, 2025
“Recall 23TB15 was issued on Dec. 20, 2023. The remedy was supposed to be out by the 3Q24. I just called dealer service, and there is still not a remedy out. I am driving a car without knowing if the front passenger seat airbag would deploy in an accident. This is unacceptable to go this long with no corrective action plan yet issued. Can you take any action to get the manufacturer to correct this defect?”
Filed Feb 6, 2025
Should you keep driving it?
This page can't tell you that. 2 of 29 reports involved a crash and 5 people were hurt. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Paid for this repair before a recall covered it? How recall reimbursement works
Other problems on this car
- Brakes grind, pulse or wear early 87 reports
- Seat belt or seat problems 29 reports