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Seat beltsPart report

2021 Nissan Altima Seat belts Problems

Complaints
3about this part
Share
4%of 71 total for the year
Median mileage
141,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the seat belts of the 2021 Nissan Altima, 4% of the 71 complaints for this model year. Where a mileage was given, the median is 141,000 miles. 1 of these say a crash was involved, according to the filers.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“I purchased this car in April 2023 and in December 2023. I had to get a new battery when I purchased a car. They told me that there was no worries or mishaps with the vehicle they said just only normal wear and tear for is a used vehicle. My car is a 2021 Nissan Altima so the car would’ve been about two years old maybe or on his way to be in two years old when I got the car according to the Carfax and the information provided to me it only had one owner previously. I’m not sure what the person did with the car but the battery was bad fast-forward to 2025. I was hit by a F150 truck. …”

NHTSA complaint #11746502, filed 2026-06

“The contact owns a 2021 Nissan Altima. The contact stated that while driving on four occasions, the front driver's side seat belt unintendedly unbuckled. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed or repaired. The failure mileage was approximately 141,000.”

NHTSA complaint #11732684, filed 2026-04, 141,000 miles

Seat belts: other model years

YearComplaintsShare of year
202425%
202313%
202134%
202032%
201952%
201831%
201741%
201651%
2015101%
201491%
2013291%
201251%
201142%
201062%
200930%
200871%
200741%
200640%
200591%
200431%
200391%
200261%
200164%
199922%
199822%
199787%
199611%
199563%
199422%
19931916%

Other parts of the 2021 Nissan Altima

Electrical system
22 complaints
Forward collision avoidance
22 complaints
Brakes
21 complaints
Other or unknown
12 complaints
Engine
7 complaints
Steering
7 complaints
Suspension
5 complaints
Back-over prevention (rear camera)
4 complaints
Latches, locks and linkages
3 complaints
Seats
3 complaints
Transmission and drivetrain
3 complaints
Air bags
2 complaints

← All problems reported for the 2021 Nissan Altima

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology