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10.0

really awful
Crashes / Fires:
0 / 0
Injuries / Deaths:
1 / 0
Average Mileage:
2,167 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2021 Toyota Sienna seat belts / air bags problems

seat belts / air bags problem

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2021 Toyota Sienna Owner Comments

problem #6

May 122024

Sienna

  • miles

A D V E R T I S E M E N T S

2 issues to report 1) when under medium consistent breaking(slowing down for a light) there are instances where the breaks feel like they let up or slipping. This issue has been reported and with the car since the first year of ownership but Toyota says it-??s all within spec 2) second issue is an issue with the rear captions seatbelt and has also been reported since 2022 where upon normal driving the seatbelt locks up and the car has to be stopped and seatbelt unbuckled to release tension. Also brought up multiple times with Toyota and no action. Kids sometime unbuckling while car is driving since they cannot move

- Yorba Linda, CA, USA

problem #5

Feb 042024

Sienna

  • miles
Recall: OCS Sensors May Short Circuit; 3TB15/23TA15 ; I am a owner of 2021 Sienna Hybrid (VIN [XXX] ) and was getting alert for the airbag and seat belt warning even when plugged in. I took it to a dealer in Sunnyvale California (Stevens Creek Toyota; 4202 Stevens Creek Blvd San Jose, CA 95129; 408-984-8833) and they are not recognizing the recall. I was charged a diagnostics fee of $ $899.93 and am being asked to pay $ 2000 to replace the car seat to fix the issues. Your advise is solicited. Best regards. Thanks -- [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Cupertino, CA, USA

problem #4

Aug 092023

Sienna

  • miles
My young daughter got the seatbelt caught around her waist. The seatbelt was unable to give any slack and was locked up. It could retract a little bit but that would only squeeze around my daughter-??s waist tighter. The seatbelt would not pull forward. We eventually had to cut the seatbelt to release her. It caused red marks around her waist and had we tried to retract it any further could have suffocated her. We took the van to the dealer to replace the seatbelt and they had said they heard of this happening before but it wasn-??t a malfunction but just a weird design quirk. This incident has not been investigated.

- Franklin, TN, USA

problem #3

Sep 102022

Sienna

  • miles

A D V E R T I S E M E N T S

Hi, i complained many time about seat belt sign of front passenger side and rear passenger right side. while driving expect me no one in the car but still i get seat belt sign.

- Alexandria, VA, USA

problem #2

Apr 012022

Sienna 4-cyl

  • 13,000 miles
The contact owns a 2021Toyota Sienna Hybrid. The contact stated that while her son was occupying the passenger side in the third-row seat, the seat belt locked and failed to release. The occupant was unable to get out of the seat belt. The occupant sustained marks on his stomach but no medical attention was provided. The contact had to cut the seat belt to release the child from the seat. The vehicle was taken to the local dealer but was not diagnosed or repaired. The manufacturer was notified but no additional assistance was provided. The approximate failure mileage was 13,000. Consumer's son sustained injuries from a faulty seat belt in 2021 Toyota Sienna van. Manufacture refuses to fix the cut belt. The contact has mailed Toyota Corporate Office as well but with no reponse.

- Lynchburg, VA, USA

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problem #1

Feb 082022

Sienna

  • miles
The driver-side second-row seatbelt goes slack for no reason while driving. All tension is released, and the loose belt falls forward. This is a serious safety issue for the child riding in that seat with no working seatbelt. This has happened about a dozen times on various days while driving. The dealer first denied there was a problem, then they claimed they fixed it. But it is still happening.

- Austin, TX, USA

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