2021 Nissan Altima Other or unknown Problems
- Complaints
- 12about this part
- Share
- 17%of 70 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 12 complaints about the other or unknown of the 2021 Nissan Altima, 17% of the 70 complaints for this model year. 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.
“On 10/26/23 at 5:00 pm I was involved in an accident I was hit on the front passenger side and none of the airbags deployed I do remember that right on impact immediately my chest started hurting I also hit my head on the driver side window now i dont know how fast i should be going or how hard do i need to be hit for the airbags to deploy but they never did. …”
NHTSA complaint #11567063, filed 2024-01“On two separate occasions my vehicle stopped on its own. Once while doing roughly 35mph the brakes applied on their own and the car stopped immediately. The second time I was at a.traffic light that had just turned green as I began to accelerate the brakes locked up and the car stopped immediately. What are my options regarding this issue.that I am having?”
NHTSA complaint #11533878, filed 2023-07“Often while driving the car loses power as if the power went off or I ran out of gas,,, studder for a moment then pick up power to continue to drive is the best way I can describe it. Immediately after I get a notification on the dashboard saying maintenance something”
NHTSA complaint #11744468, filed 2026-06“While heading west on interstate after a Drs. Appointment my wife was driving our 2021 Nissan Altima when suddenly there was a loss of power to the engine as if the engine was overheating or had loss of fuel or only able to slowly exit the freeway to a safe place and call a tow truck, after 1 1/2 days of diagnosing and testing. I was able to drive the vehicle with no issues for approximately 4000 miles when the exact problem has occurred this past Friday 6-19-2026”
NHTSA complaint #11745511, filed 2026-06“Purchased the car in June of 2024 with around 33,000 miles. I thought the doors were locked and someone was able to just open my back door when my car was unattended in a store parking lot; the car was supposed to be locked. Lights and horn started going off. Being a female with a child this is a very scary issue. The idea that anyone can get in when you think the doors are locked or vice versa, in the event of an emergency no one can get in because the doors dont unlock. It started with the passenger side rear door lock not working with fob or button. The lock needs to be done manually. …”
NHTSA complaint #11640747, filed 2025-02Related service bulletins
- 10211990Mar 3, 2022TELEMATICS SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- 10208953Feb 7, 2022DTC P0456 CAUSED BY EVAP LEAK AT VENT CONTROL VALVE O-RING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this…
- 10208948Feb 7, 2022EVAP LEAK DTC P0442, P0455, P0456 INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
Other or unknown: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 1 | 14% |
| 2024 | 8 | 20% |
| 2023 | 6 | 20% |
| 2022 | 9 | 29% |
| 2021 | 12 | 17% |
| 2020 | 36 | 20% |
| 2019 | 49 | 21% |
| 2018 | 60 | 27% |
| 2017 | 62 | 16% |
| 2016 | 81 | 15% |
| 2015 | 94 | 10% |
| 2014 | 84 | 8% |
| 2013 | 241 | 10% |
| 2012 | 58 | 14% |
| 2011 | 42 | 17% |
| 2010 | 72 | 19% |
| 2009 | 146 | 9% |
| 2008 | 201 | 20% |
| 2007 | 38 | 8% |
| 2006 | 64 | 8% |
| 2005 | 60 | 6% |
| 2004 | 10 | 4% |
| 2003 | 25 | 3% |
| 2002 | 24 | 2% |
| 2001 | 2 | 1% |
| 2000 | 4 | 3% |
| 1999 | 3 | 3% |
| 1998 | 1 | 1% |
| 1997 | 10 | 9% |
| 1996 | 4 | 4% |
| 1995 | 6 | 3% |
| 1994 | 1 | 1% |
| 1993 | 1 | 1% |
Other parts of the 2021 Nissan Altima
22 complaintsBrakes
21 complaintsElectrical system
21 complaintsSteering
7 complaintsEngine
6 complaintsSuspension
5 complaintsBack-over prevention (rear camera)
4 complaintsLatches, locks and linkages
3 complaintsSeat belts
3 complaintsSeats
3 complaintsTransmission and drivetrain
3 complaintsAir 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 28, 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