Complaint volume
61 consumer-submitted complaints are matched to this model year. Treat the count as a research signal, then read the actual summaries for repeated symptoms.
Complaint records
2021 Nissan Altima Complaints
61 consumer-submitted complaints on record for the 2021 Nissan Altima, grouped by component category.
61 Total complaints
4 Crash reports
1 Fire reports
2 Injury reports
Complaint data reflects consumer-submitted reports. A complaint is not proof
of a defect, recall, or manufacturer fault. Enriched severity fields come
from official bulk records when the complaint can be matched by ODI number.
Buyer interpretation
How to use these complaints before buying
Complaint records are most useful when they turn into inspection points, seller questions, and comparison checks against nearby model years.
Pattern to inspect
The most common categories are service brakes,forward collision avoidance, electrical system, forward collision avoidance. Use those categories as a test-drive checklist instead of judging the vehicle from the total count alone.
Severity flags
Enriched records include 4 crash reports, 1 fire report, 2 injury reports, and 0 fatality reports. These fields come from complaint records and should be read in context.
Mileage clue
Mileage is available on 11 complaints, with an average reported failure mileage of 49,572 miles. Compare that with the mileage on the listing.
Questions to ask the seller
- Have you had any problems related to service brakes,forward collision avoidance, electrical system, forward collision avoidance?
- Can I see recent maintenance and repair records?
- Has the vehicle ever been towed, involved in a crash, or repaired for the same issue twice?
- Can we also check the recall record for this 2021 Nissan Altima?
Used-car checklist
Use these complaints before the test drive.
Build a buyer checklist to turn these issues into questions and inspection points.
2021 Nissan Altima
Build buyer checklist Compare with other years Sends year, make, and model to pre-fill your checklist.
How severe are the 2021 Nissan Altima complaints?
4 Crash
1 Fire
2 Injury
0 Fatality
2 Towed
2 Medical attention
What are the most common 2021 Nissan Altima complaint categories?
SERVICE BRAKES,FORWARD COLLISION AVOIDANCE 9
ELECTRICAL SYSTEM 7
FORWARD COLLISION AVOIDANCE 5
ENGINE 4
UNKNOWN OR OTHER 3
ELECTRICAL SYSTEM,FORWARD COLLISION AVOIDANCE 2
ELECTRICAL SYSTEM,UNKNOWN OR OTHER 2
POWER TRAIN 2
STEERING,SUSPENSION,SERVICE BRAKES 2
VISIBILITY 2
61 total complaints on record
Latest complaints
| Date | Component | Summary | Severity | Mileage |
|---|---|---|---|---|
| May 2026 | ENGINE | Dealership found metal contamination in oil pan from engine. They diagnosed as car needing a new engine due to engine failure. The car only has 90,000 miles and it’s a 2021. | Crash: No Fire: No | Unknown |
| May 2026 | LATCHES/LOCKS/LINKAGES | Rear door actuator failed again. | Crash: No Fire: No | Unknown |
| Apr 2026 | SEAT BELTS | 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. | Crash: No Fire: No | 141,000 |
| Apr 2026 | STEERING,ELECTRICAL SYSTEM | Steering wheel module buttons are not working . / needs a sensor replaced - recalibration. | Crash: No Fire: No | Unknown |
| Apr 2026 | SERVICE BRAKES,FORWARD COLLISION AVOIDANCE | The system malfunctioning is the front sensor braking. My safety and others were put at risk with this because multiple times my car has braked me and or completely stopped me because it’s malfunctioning , it happens while I am on a busy street and someone even almost rear ended me because my car braked out of nowhere. It’s called “Phantom Braking”. No, the problem has not been confirmed by dealer became they stopped answering. I took it to the manufacture but they want to charge me too much. Yes and it first appeared Feb 2nd , a day after I bought the car. So at first it will aggressively brake me and I can tell when it’s going to start braking me because this loud scratching/grinding noise appear .. the noise sounds like it’s coming from the bottom and I can feel it vibrating my car when I relax my feet on the brakes or the floor. But as soon as that noise comes on then the car starts braking me and sometimes it will cause the engine to stall and then the car will stop driving completely while im on the middle of traffic. | Crash: No Fire: No | Unknown |
| Mar 2026 | ENGINE AND ENGINE COOLING | The contact owns a 2021 Nissan Altima. The contact stated that after stopping at a traffic light, the accelerator pedal was depressed, and the vehicle went into LIMP Mode. The check engine warning light was illuminated. The vehicle was taken to a local independent mechanic, where it was determined that there was debris in the engine oil pan. The vehicle was taken to a local dealer, and debris was found in the engine oil pan. Upon further investigation, the contact related the failure to NHSTA Campaign: 26V080000 (Engine and Engine Cooling); however, the VIN was not included. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 118,000. | Crash: No Fire: No | 118,000 |
| Feb 2026 | ELECTRICAL SYSTEM,UNKNOWN OR OTHER | Passenger back locks stopped working first. Then driver side back locks. Now both driver and passenger front locks will not lock/unlock automatically. This is scary when not being able to get in/out of vehicle for an emergency. I have reviewed multiple complaints and it appears this is a very common Nissan problem that needs to be addressed before it becomes a bigger safety problem. | Crash: No Fire: No | Unknown |
| Feb 2026 | UNKNOWN OR OTHER | Back up camera display distorted | Crash: No Fire: No | Unknown |
| Dec 2025 | ELECTRICAL SYSTEM,SERVICE BRAKES,FORWARD COLLISION AVOIDANCE | Vehicle Breaking on Its Own While Driving I am writing to file a formal safety complaint and to demand immediate corporate intervention regarding an extremely dangerous mechanical/ADAS defect. My Nissan Altima has serious, ongoing safety issues where the vehicle will unexpectedly and aggressively apply the brakes on its own while I am driving, including on highways and regular roads. This defect happens without my input, without warning, and creates a major risk of being rear-ended, losing control of the vehicle, or causing a serious accident. This issue is Not minor. It is a life-threatening malfunction that makes the vehicle unsafe to operate. I have taken the vehicle to authorized Nissan dealerships for diagnosis and repair on multiple occasions & originally they told me it should be under warranty & when they spoke to the dealership they said it did not qualify under the warranty nor the extra insurance purchased & i'd have to come out of pocket for repairs. A vehicle that breaks on its own, especially at highway speeds – is not safe, not reliable, and not roadworthy. This situation has gone on for years and the vehicle is now a clear danger to me and the public and my three minor children who ride in the car with me. I am requesting immediate action and a good-faith resolution. | Crash: No Fire: No | Unknown |
| Dec 2025 | FORWARD COLLISION AVOIDANCE | RE: Formal Demand for Vehicle Repurchase/ Buyback due to Critical Safety Defect- Vehicle Breaking on Its Own While Driving I am writing to file a formal safety complaint and to demand immediate corporate intervention regarding an extremely dangerous mechanical/ADAS defect in my vehicle that Nissan has failed to repair since I purchased it in 2021. My Nissan Altima has serious, ongoing safety issues where the vehicle will unexpectedly and aggressively apply the brakes on its own while I am driving, including on highways and regular roads. This defect happens without my input, without warning, and creates a major risk of being rear-ended, losing control of the vehicle, or causing a serious accident. This issue is Not minor. It is a life-threatening malfunction that makes the vehicle unsafe to operate. I have taken the vehicle to authorized Nissan dealerships for diagnosis and repair on multiple occasions: Repair Dates 2021-2025 at Passport Nissan of Alexandria 150 S Pickett St Alexandria, VA Location Despite these visits, the problem continues. Nissan’s failure to diagnose or repair this critical break/self-braking issue over several years constitutes: •Failure to remedy a known safety defect •Breach of warranty •Violation of consumer protection laws •Negligence regarding driver and public safety A vehicle that breaks on its own, especially at highway speeds – is not safe, not reliable, and not roadworthy. Because Nissan has had more than a reasonable opportunity since 2021 to correct this defect and has failed to do so, I am demanding that Nissan: 1.Buy back the vehicle at an amount equal to the remaining loan balance. I do not want to do any upgrade trade ins. This situation has gone on for years and the vehicle is now a clear danger to me and the public and my two minor children who ride in the car with me. I am requesting immediate action and a good-faith resolution. | Crash: No Fire: No | Unknown |
| Nov 2025 | ELECTRICAL SYSTEM | Hi this is in reference to my 2021 Nissan altima. The fob key entry and electrical door control doesn't work. The automator for my doors have had to be replaced. First the rear passenger and five days later the rear passenger door on drivers side and now the drivers door. As a single female this is a safety issue. If I can't access my vehicle in an emergency it turns into a life or death situation. I've researched this and many owners of like vehicle have had this complaint and reported it, but appears that Nissan has ignored it. When my repairs are done it isn't inexpensive. Please please please!!! Look into this. Please and thank you. Tempe dodge chrysler and jeep Tempe Az is where the repairs are done. Jon (833) 552-1518 service department | Crash: No Fire: No | Unknown |
| Sep 2025 | FORWARD COLLISION AVOIDANCE | The Automatic Emergency Braking (AEB) system in my 2021 Nissan Altima SR frequently malfunctions. The forward radar sensor, located behind the front grille, becomes easily obstructed by normal road dirt or weather conditions. When this happens, the system falsely detects obstacles and engages braking or gives collision warnings even when the road ahead is clear. This places my safety and the safety of others at risk because the vehicle can suddenly slow or stop without cause, increasing the chance of a rear-end collision. To avoid false activations, I must disable the AEB system every time I drive, which defeats the purpose of having this federally mandated safety feature. The problem is ongoing and repeatable. Warning lights and collision alerts appear when the sensor is dirty or misreading conditions. Nissan dealerships have acknowledged this issue through Technical Service Bulletins, but there is no permanent fix and no recall. The malfunction has not been resolved by the manufacturer and continues to pose a safety hazard. | Crash: No Fire: No | Unknown |
| Aug 2025 | ENGINE | The transmission is jerking while driving. it has been doing this since purchased in 2021. I have reported this several times to nissan and the consumer advisors deemed it undrivable but no on has resolved the issue. | Crash: No Fire: No | Unknown |
| Jul 2025 | SERVICE BRAKES, HYDRAULIC,SEATS | The contact owns a 2021 Nissan Altima. The contact stated while driving 45 MPH, the brakes independently activated, and the rear of the vehicle fishtailed. The contact stated an unknown warning light showing an image of the rear of the vehicle was briefly illuminated. In addition, the contact stated that the driver's side front seat frame was fractured, and the seat was loose. The vehicle was taken to the dealer; however, the brake failure was not duplicated. The contact was informed that the driver's side front seat rack was fractured and needed to be replaced. The vehicle was not repaired. The contact stated that the vehicle had been taken to several dealers; however, the brake failure was not duplicated. The contact was afraid to continue driving the vehicle. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure and a case was filed. The contact was informed that the repair for the driver's side front seat rack was not covered under warranty or any special programs. The failure mileage was approximately 41,000. | Crash: No Fire: No | 41,000 |
| Jul 2025 | ELECTRICAL SYSTEM,UNKNOWN OR OTHER,BACK OVER PREVENTION | Rear Crash warning comes on when stopped at light , or when car is put in reverse and nothings there . also wiper refill warning. stays on even when full. Has been reported to dealership more than once also hear clicking at speeds over 50 mph. | Crash: No Fire: No | Unknown |
| Jun 2025 | SUSPENSION | The contact owns a 2021 Nissan Altima. The contact stated that while driving at an undisclosed speed, there was an abnormally loud clicking sound coming from the vehicle. No warning light was illuminated. The vehicle was taken to the independent mechanic, where it was diagnosed with fractured front driver's and passenger's side axles. The contact was informed that the driver's and passenger's side axles needed to be replaced. The vehicle was repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 34,500. | Crash: No Fire: No | 34,500 |
| Jun 2025 | ELECTRICAL SYSTEM | Odometer Fraud. The contact purchased a 2021 Nissan Altima. The contact stated that while attempting to register the vehicle, it was discovered that there was a mileage discrepancy. The vehicle was a dealer sale. At the time of purchase, the vehicle mileage was 35,189 and at the time of registration, it was discovered that the mileage was 65,543. | Crash: No Fire: No | Unknown |
| May 2025 | ELECTRICAL SYSTEM | About a month ago I noticed my backup camera had gotten dark. I didn’t worry much about it until it started glitching a couple days ago. I gave it a couple of days thinking it would go away but it hasn’t. It either glitches with lines through it, it freezes, or goes black altogether. I then did some research on it finding that there have been recalls on the 2021 nissan altima model cameras, just not mine specifically. I’m not sure why that is but it’s an issue I’m not willing to pay out of my pocket knowing that it’s been a year to model issue in the past. I would like this recall to be put in place and me be able to get it repaired free of charge seeing that it’s an obvious danger while backing up and the fact I did not personally damage it. | Crash: No Fire: No | Unknown |
| May 2025 | ENGINE | The contact owns a 2021 Nissan Altima. The contact stated that while driving at various speeds on several occasions, there were abnormal sounds coming from the engine compartment. The contact inspected the vehicle and sent off an oil sample. The contact stated that a metal fragment was found in the engine oil. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 51,000. | Crash: No Fire: No | 51,000 |
| Apr 2025 | ELECTRICAL SYSTEM,FORWARD COLLISION AVOIDANCE | Stating that something is malfunctioning and see owners manual | Crash: No Fire: No | Unknown |
| Apr 2025 | SERVICE BRAKES, HYDRAULIC | The contact rented a 2021 Nissan Altima. The contact stated while driving 45 MPH, the brake pedal was depressed, and the vehicle failed to respond. There were no warning lights illuminated. The contact stated that it felt like the brakes were inoperable. The vehicle was then taken back to the rental car agency. The vehicle was not diagnosed, and the contact was unsure if the vehicle was repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 44,794. The VIN was not available. | Crash: No Fire: No | 44,794 |
| Feb 2025 | VISIBILITY | Windshield Repair Issue I have a cracked windshield that I attempted to have repaired through my insurance company. The repair company I was sent to was unable to remove the windshield, so they referred me to Nissan, as they are the manufacturer of my vehicle. However, when I went to Nissan, I was informed that they could not remove the necessary bolts to replace my windshield without breaking my windshield wiper motor. This situation poses significant safety risks. A cracked windshield compromises the structural integrity of the vehicle, reducing its ability to protect occupants in the event of an accident. | Crash: No Fire: No | Unknown |
| Feb 2025 | SEAT BELTS,SEATS,UNKNOWN OR OTHER | The backseat driver seatbelt does not click locked. The driver seat squeaks and moves. The driver door locks while trying to open. | Crash: No Fire: No | Unknown |
| Feb 2025 | ELECTRICAL SYSTEM,UNKNOWN OR OTHER,FORWARD COLLISION AVOIDANCE | 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. The dealership looked at it and said they could not replicate the problem and everything was working. Now both rear door locks dont work with the buttons or the key fob. The rear doors have to be locked and unlocked manually all the time. Car is currently at the dealership and they confirmed the issue and are telling me that the BCM (i believe is what they said) needs to be replaced and reprogrammed. The car only has approx. 42,500 miles. The other issue with the car is the automatic emergency braking system light comes on and flashes on the dash. It is very random and sometimes it doesnt do it at all. There can be nothing in front of me on the road when it starts flashing. It also does it in all weather conditions, and even when its dry. There have been multiple issues with this car since the day I purchased it. | Crash: No Fire: No | Unknown |
| Jan 2025 | ELECTRICAL SYSTEM,UNKNOWN OR OTHER | I was driving with my child in the car and the volume on the radio spiked to an extremely high level. This has happened multiple times and the volume control knob is defective so I cannot turn down the volume or the radio off. I brought the vehicle into the Nissan dealer and they diagnosed an internal failure to the A/V control unit and recommended replacing this. When the volume spikes to full blast, I cannot turn the radio off. They are charging $2000 to have this repaired even though it's a safety hazard and I am distracted while driving to keep trying to turn the volume off or the radio off. The controls do not work and they independently turn the volume on full blast. | Crash: No Fire: No | Unknown |