2021 Nissan Altima problems & reliability
69 owner complaints filed with NHTSA for the 2021 Nissan Altima, alongside 2 safety recall campaigns. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
4 complaints report injuries (4 injured).
Federal crash records (FARS 2020–2023): 2021 Nissan Altima vehicles were involved in 59 fatal crashes with 39 occupant deaths. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Forward Collision Avoidance → | 22 | 32% |
| Electrical System → | 21 | 30% |
| Service Brakes → | 18 | 26% |
| Unknown OR Other | 12 | 17% |
| Steering | 7 | 10% |
| Engine | 6 | 9% |
| Suspension | 5 | 7% |
| Back Over Prevention | 4 | 6% |
| Latches/locks/linkages | 3 | 4% |
| Power Train | 3 | 4% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Complaints by incident year
What owners report
“Got the car from kingdom Chevy on 66 and western on February 2024 used at 62.000. I took the car back twice because the screen in the car kept cutting off fading on and fading off. Secondly, the Bluetooth plug would not work. I did not have the car a month. They kept telling me that nothing was wrong with the vehicle…”
Electrical System · filed Jul 23, 2026
“When I make a turn, I hear a clicking noise and also when I come to a complete stop, I can a sound that sounds like a grunting noise. I had new brakes, rotors and brand new tires put on in 2025. I think my ball joints and tie rod is defective. I have a triple AAA membership and I just renewed it in June and it said…”
Suspension · filed Jul 10, 2026
“My car is supposed to have an automatic braking system/collision detection. Two cars in front of me slammed on their brakes and the car in front of me slammed on his brake, and I didn't have enough time to react. I totalled my car, but my car is supposed to have a safety feature that automatically brakes. The faulty…”
Forward Collision Avoidance · filed Jul 8, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- Complete loss of motive power due to engine failure
Preliminary Evaluation PE23023 · opened Dec 13, 2023 · closed Jul 18, 2025
- Hertz/Vehicles Rented with Open Recalls
Audit Query AQ22003 · opened Dec 16, 2022 · open
Technical service bulletins
109 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2021 Nissan Altima. The 10 most recent:
CERTIFICATION LABEL AND VIN PLATE REPLACEMENT SERVICE INFORMATION Because of collision damage or other vehicle repair, a replacement “Certification Label” or “VIN Plate/Label” may be needed. HINT: Certification Label =…
NTB09-131C · Service Bulletin/Repair Instructions · issued Apr 13, 2026
CERTIFICATION LABEL AND VIN PLATE REPLACEMENT SERVICE INFORMATION Because of collision damage or other vehicle repair, a replacement “Certification Label” or “VIN Plate/Label” may be needed. HINT: Certification Label =…
NTB09-131C · Service Bulletin/Repair Instructions · issued Apr 13, 2026
TELEMATICS SERVICE INFORMATION HINT: This bulletin applies to vehicles equipped with a 4G network compatible TCU. TCUs compatible with 3G network only are no longer supported. SERVICE INFORMATION The APPLIED VEHICLES…
NTB15-049CC · Service Bulletin/Repair Instructions · issued Mar 30, 2026
AUTOMATIC EMERGENCY BRAKING WARNING LIGHT BLINKING APPLIED SYSTEMS: Vehicles equipped with a lane camera (see Figure 1) SERVICE INFORMATION If the Automatic Emergency Braking (AEB) warning light or is blinking (but not…
NTB19-042F · Service Bulletin/Repair Instructions · issued Feb 20, 2025
INTELLIGENT CRUISE CONTROL INOPERATIVE AND AEB/FEB WARNING LIGHT ON OR RADAR OBSTRUCTION MESSAGE DISPLAYED WITH DTC C1A16 OR C2582 IF YOU CONFIRM IMPORTANT: The purpose of ACTION (on the next page) is to give you a…
NTB19-033G · Service Bulletin/Repair Instructions · issued Feb 20, 2025
DTC B00A0-00 STORED This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin. IF YOU CONFIRM DTC B00A0-00 (OCCUPANT DETECTION SENSOR UNIT) is stored, AND…
NTB19-071D · Service Bulletin/Repair Instructions · issued Sep 19, 2024
FALSE ACTIVATION OF AEB OR FCW APPLIED VEHICLES: 2021-2022 Altima (L34) 2022-2023 Frontier (D41) 2020-2022 Sentra (B18) APPLIED DATES: Altima: All Frontier: All Sentra: Built on or before March 10, 2022 APPLIED SYSTEMS…
NTB21-115B · Service Bulletin/Repair Instructions · issued Jul 11, 2024
VEHICLE KEY NOT DETECTED / AUTHENTICATED, ENGINE WILL NOT START This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB13-107G · Service Bulletin/Repair Instructions · issued May 21, 2024
CAN COMMUNICATION – NETWORK DIAGNOSTIC FLOW CHART This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB13-027D · Service Bulletin/Repair Instructions · issued May 21, 2024
CAN COMMUNICATION CODES – DIAGNOSTIC TIPS AND GUIDELINES This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB10-066C · Service Bulletin/Repair Instructions · issued May 21, 2024
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 2021 Nissan Altima has 2 NHTSA recall campaigns — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2021 Nissan Altima?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.