Check a VIN

2021 Tesla Model 3: seat belt won't latch or retract

7 of the 675 complaints about the 2021 Tesla Model 3 describe seat belt won't latch or retract.

owner complaints
7
of this car's complaints
1%
recalls
3
Is there a fix? There are 3 recalls for this area of the car. See below

Seat belt won't latch or retract by model year

What owners say

Filed Jul 15, 2026 · Seat belts · OH · crash

Front Seatbelt On March 13, 2026, at approximately 7:51 PM EST (23:51 UTC), the driver of a 2021 Tesla Model 3 was killed in a head-on collision on SR 741 in Warren County, Ohio. Two people died in this crash — the Tesla driver and the driver of the oncoming vehicle. Tesla's own telematics data (provided to the family post-crash) reveals that the driver's seatbelt unlatched at Row 5115 / 23:51:03.269 UTC — exactly 14.15 seconds before the collision. The driver was actively driving at the time, as confirmed by 66 separate steering torque readings between the seatbelt unlatch and the crash, ranging from −1.59 Nm to +2.15 Nm in constantly alternating directions — the signature of active lane-holding. The seatbelt released on its own while the driver was actively steering based on tesla data at approximately 66 mph. No rational driver unbuckles their seatbelt while driving 66 mph on a busy two-lane road. The telematics data proves continuous active driving before, during, and after the seatbelt event. The seatbelt failure is a separate and independent defect from the Emergency Lane Keeping (ELK) system failure that caused the collision (which is the subject of a separate the federal safety agency complaint). Even if the collision was unavoidable, a functioning seatbelt may have saved the driver's life. The seatbelt failure independently contributed to the fatality. The following data is from Tesla's own telematics file provided to the family: Timestamp (UTC)RowEvent 23:51:03.269 5115 Driver seatbelt status changes from LATCHED to UNLATCHED 23:51:03.269 – 23:51:17.420(row 5115–5311)66 steering torque readings confirm active driving (−1.59 to +2.15 Nm) 23:51:17.4205311ELK system activates (separate defect) ~23:51:19.0—Head-on collision — driver unrestrained — two fatalities Pattern of identical complaints from other 2021 Model 3 owners (ODI 11713076, 11738583, 11684327)

Filed May 18, 2026 · Seat belts · CA

The driver-side seat belt buckle/receptacle failed during normal use. There was no collision, impact, or misuse involved. While using the seat belt as intended, the buckle assembly separated/broke unexpectedly, causing the seat belt to no longer function properly. This appears to be a failure of a critical safety component rather than normal wear and tear. The vehicle should not be considered safe to operate until the restraint system is properly inspected and repaired. The failure occurred without warning and under ordinary driving conditions.

Filed Mar 11, 2026 · Seat belts · CA

- The rear middle seatbelt became locked and will not unwind or extend. The seatbelt remained stuck in the retracted position, making it unusable. The vehicle and seatbelt assembly are available for inspection upon request. However, Tesla has already fixed the issue, but I feel we were wrongly charged because I believe this should be a recall. I searched this issue online, and others have reported the same issue. Because we rarely have the need to use our rear seats, it wasn't until years later we discovered this issue. - Because the rear middle seatbelt cannot be extended, that seating position cannot safely be used. Any passenger sitting in that position would not have a functioning restraint system in the event of a collision, creating a safety risk. - Yes, Tesla service inspected the vehicle and confirmed that the rear middle seatbelt was locked and not functioning properly. - The vehicle has been inspected by Tesla service. It has not been inspected by police, insurance representatives, or other third parties. - No warning lights, alerts, or messages appeared prior to discovering the issue. The seatbelt was found to be locked when we attempted to use it, and it would not extend.

Filed Nov 22, 2024 · Seat belts · 65,000 miles · TX

The contact owns a 2021 Tesla Model 3. The contact stated that while a family member was attempting to use the rear middle seat belt, the seat belt failed to extend and was unusable. The vehicle was taken to a Tesla Service Center, where the seat belt was replaced. The vehicle was repaired as an out-of-pocket expense. The manufacturer was notified of the failure. The failure mileage was approximately 65,000.

Filed Aug 11, 2024 · Seat belts · CA

Rear left seatbelt randomly stopped latching properly. Seat belt buckle goes into the latch but doesn't stick inside and just slides right out.

Filed Sep 22, 2023 · Seat belts · CA

The rear middle seatbelt has permanently locked and is unusable. It occurred after having the rear seats folded down and was observed when replacing the seat-backs to their normal position. Tesla has refused to repair due to vehicle being out of warranty despite the vehicle not having been involved in any collision.

Filed Jun 16, 2023 · Seat belts · MI

When trying to seat belt on, under normal conditions, seat belt fails to engage. The belt is stuck in full locked mode. Issue happens intermittently. Failure of seat belt forces no occupancy of front passenger seat, as the only alternative would be to not wear a belt. This raises the following concern: 1. Will the belt fail to work properly in case of a crash event? 2. Will the belt disengage when normal driving. TESLA did NOT replace the belt under warranty and out of concern for my passengers, I replaced it under my own cost

Related recalls

Seat belts: front: warning light/devicesReported May 28, 2024 · 125,233 vehicles affected
What is wrong
Tesla, Inc. (Tesla) is recalling certain 2012-2024 Model S, 2015-2024 Model X, 2017-2023 Model 3, and 2020-2023 Model Y vehicles. In the event of an unbelted driver, the seat belt warning light and audible chime may not activate as intended. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
Risk
A seat belt warning system that fails to alert occupants of an unbelted seat belt can increase the risk of injury during a crash.
Remedy
Tesla will release an over-the-air (OTA) software update. Owner notification letters were mailed July 26, 2024. Owners may contact Tesla customer service at 1‑877‑798‑3752. Tesla's number for this recall is SB-24-00-008.

Recall number 24V376000 · Recall details

Seat belts: rear/other: anchorageReported October 21, 2022 · 24,064 vehicles affected
What is wrong
Tesla, Inc. (Tesla) is recalling certain 2017-2022 Model 3 vehicles. The second-row left seat belt buckle and second-row center seat belt anchor may have been incorrectly reassembled during vehicle service.
Risk
An incorrectly reassembled seat belt anchor can impair the performance of the seat belt during a crash, increasing the risk of injury.
Remedy
Tesla Service will inspect and reassemble the seat belt anchors as necessary, free of charge. Owner notification letters were mailed December 20, 2022. Owners may contact Tesla customer service at 1‑877‑798‑3752. Tesla's number for this recall is SB-22-20-004.

Recall number 22V798000 · Recall details

Seat belts: frontReported February 1, 2022 · 817,143 vehicles affected
What is wrong
Tesla, Inc. (Tesla) is recalling certain 2021-2022 Model S and Model X, 2017-2022 Model 3, and 2020-2022 Model Y vehicles. The audible chime may not activate when the vehicle starts and the driver has not buckled their seat belt. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
Risk
The driver may be unaware that their seat belt is not fastened, increasing the risk of injury during a crash.
Remedy
Tesla will perform an over-the-air (OTA) software update, free of charge. Owner notification letters were mailed April 1, 2022. Owners may contact Tesla customer service at 1‑877‑798‑3752. Tesla's number for this recall is SB-22-00-002.

Recall number 22V045000 · Recall details

Questions about the 2021 Tesla Model 3 seat belt

Is seat belt won't latch or retract a common problem on the 2021 Tesla Model 3?

7 of 675 owner complaints about the 2021 Tesla Model 3 (1%) mention seat belt won't latch or retract. The model year with the most reports is 2018.

Is there a recall or service bulletin for this on the 2021 Tesla Model 3?

There are 3 recalls and 0 service bulletins for the same area of the car. Check them below with your VIN.

Other symptoms on the 2021 Tesla Model 3

Adaptive cruise 256Phantom braking 148Collision warning 32Wipers 21Lane assist 19Headlights 17Backup camera 14Sudden acceleration 12Jerking 11Loss of power 9Ball joint 8Grinding brakes 6

All model years of the Tesla Model 3

VIN decoder

See the problems and recalls for an exact car

Buying a used 2021 Tesla Model 3?

Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.

Check its history