The contact owns a 2020 Nissan Altima. The contact stated that while driving at an undisclosed speed, the message "Engine Malfunction" was displayed. Additionally, the vehicle experienced excessive coolant consumption and the engine overheated. The vehicle was taken to an independent mechanic, where the thermostat was replaced; however, the failure recurred and worsened. The vehicle was returned to an independent mechanic, where it was diagnosed with a cooling system and head gasket failure. The dealer was contacted and provided with the diagnostic trouble codes, and the dealer recommended an engine replacement. The vehicle was not repaired and remained parked at the residence for two months. The manufacturer was not notified of the failure. The failure mileage was unknown.

Source: NHTSA complaint ODI #11756811 · view all complaints for this vehicle at nhtsa.gov

I currently own a 2020 Nissan Altima with 49,186 miles and I am reporting a recurring power door lock failure. This vehicle was inspected at the Nissan of Cumming location this morning to confirm the issue. Three of the passenger-side door lock actuators have failed within a short period of time. The two rear door locks stopped working at the same time, and approximately two weeks later the front passenger door lock also stopped working. The driver's door has started to not unlock when turning the car off where it normally did up until recently. The affected doors do not respond to the interior power lock/unlock buttons or the key fob. When attempting to lock or unlock the doors electronically, I can hear the actuators attempting to operate, but the doors do not actually lock or unlock. The doors can only be locked or unlocked manually. This failure affects multiple doors and appears to be a premature component failure given the vehicle's mileage. A malfunctioning power lock system could create a safety concern if occupants are unable to quickly secure or unlock doors during an emergency situation or if electronic access is needed. I am requesting that the NHTSA investigate whether there is a broader defect involving door lock actuators or the power door lock system in 2019 - 2020 Altima vehicles. I have also submitted a case with Nissan Affairs. The case number is 56942179.

Source: NHTSA complaint ODI #11753776 · view all complaints for this vehicle at nhtsa.gov

The contact owns a 2020 Nissan Altima. The contact stated that the auto-braking system unexpectedly activated, and there was a grinding sound coming from the brakes; however, the vehicle failed to stop as needed. The ABS warning light was illuminated. While driving approximately 60 MPH, the brakes suddenly activated, and the instrument panel illuminated with a vertical yellow light. The vehicle was pulled over to the side of the road and waited for a while before restarting the vehicle to continue driving. The failure reoccurred the following morning while driving 35 MPH. There was no warning light illuminated. The vehicle was pulled over, turned off, and restarted to continue driving. The failure had occurred approximately 5 times. The contact stated that with the cruise control set to co-pilot, the steering and lane assist features failed to operate as intended, advising the contact to manually steer the vehicle. The failure became more persistent. The vehicle was not taken to the dealer. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 120,000.

Source: NHTSA complaint ODI #11750330 · view all complaints for this vehicle at nhtsa.gov

I leased and then bought a new 2020 Altima in 11/19 with 4 Continental tires. On 8/27/26 I saw a hole and fissures in the sidewall of the right-rear tire (Continental Pro Contact TX 215 / 55 R 17. All 4 tires had 7/32 wear on 11/30/25 and were rotated front to back. Threads are good.

Source: NHTSA complaint ODI #11760116 · view all complaints for this vehicle at nhtsa.gov

This issue involves a documented and recurring safety-related defect that was reported multiple times while my vehicle was still covered under Nissan’s factory warranty related to the airbag system. My 2020 Nissan Altima currently has approximately 53,900 miles and has experienced repeated airbag/SRS failures associated with diagnostic code B1436-13, indicating an open circuit within the passenger airbag system. This issue has occurred on multiple occasions, including in 2022, 2024, 2025, and 2026. During several warranty-period service visits, the diagnostic codes were reportedly cleared, however, the underlying wiring harness issue does not appear to have been permanently corrected. I have the full history service record for this car with notes from 3 Nissan Dealers. I have documented communications with Nissan Consumer Affairs dating back to May 13, 2024 regarding this ongoing concern. In addition, I have photographic evidence showing the same airbag fault code on February 22, 2025, along with additional correspondence with Nissan dated March 18, 2025. Both of these events occurred while the vehicle remained within the applicable warranty coverage period. The airbag warning light has now returned again, and I have been presented with a repair estimate exceeding $5,200 for a condition that was previously reported and addressed unsuccessfully while the vehicle was under warranty coverage. According to Nissan’s 2020 Warranty Information Booklet, the Restraint System, including airbags and related electronic control systems, is covered under Nissan’s 5-year/60,000-mile warranty coverage. Because this safety concern was documented during the warranty period and prior repair attempts did not resolve the issue. Given that this matter involves a critical vehicle safety system that could affect passenger airbag deployment, I am hopeful this can be resolved.

Source: NHTSA complaint ODI #11737675 · view all complaints for this vehicle at nhtsa.gov

I am having issues with the back-up camera display on the radio screen freezing up occasionally while backing up and once it went black while backing up. I have also had dozens of issues with the drivers door not opening. Occasionally when i try to exit the vehicle the door will not fully unlatch to open. It will only partially unlatch to open a crack. I have tried locking/unlocking, shutting off the vehicle and starting the vehicle, roll down the window and try to exit using the outside handle, but was unable to exit the vehicle. The only way I could get out of the vehicle was to exit through the passenger door. After several minutes or longer it will finally open to exit. This is a severe entrapment issue. These issues have happened on multiple occasions, but did not start until after the factory warranty ended.

Source: NHTSA complaint ODI #11722887 · view all complaints for this vehicle at nhtsa.gov

Odometer Fraud. The contact purchased a 2020 Nissan Altima. The contact became aware that there was a mileage discrepancy after the purchase. The vehicle was an independent dealer sale. At the time of the purchase, the vehicle mileage was 83,000. It was later discovered during routine maintenance with an authorized local dealer that the mileage was 125,000.

Source: NHTSA complaint ODI #11744494 · view all complaints for this vehicle at nhtsa.gov