2021 NISSAN SENTRA Complaints

The passenger front, and both back windows no longer function. This appears to be a common issue when searching the internet. There is also an issue with the keyless start, as it often does not recognize that the fob is in the vehicle, or gives a low batter warning (with a new battery). As there was already a recall on the sensor for the blind spot warnings and such, there appears to be wide spread electrical and sensor issues with this year/make/model. The windows pose a safety risk if someone is trapped in a vehicle that the doors won't open.

AEB system is initiating emergency braking at random times. Both on surface street, and the freeway on ramp. With and without weather, and without any obstacles or cars in the way. The vehicle comes it a complete stop when this happens and puts the driver in significant danger. At this point the dealer observed warning code on the dashboard, but it did not engage. Message relating to that the AEB may deploy. When it does happen Emergency Brake is on the dashboard. After it happens vehicle can resume driving. Various indicines happened last year. We took it to Ken Garff Nissan (11155 So. Jordan Gateway in South Jordan, Ut. 84095. They could not find the problem or get the problem reproduced. They recommended turning off the safety features when driving. We have done that for a year. Then on 1-15-26, the safety system was on and the break engaged and brought the car to a stop on the freeway on ramp. The car is now at Ken Garff Nissan (777 So. West Temple SLC, Utah) It has been there for 2 weeks. This is the dealer that saw the code, but the system did not engage.

Rattling noise coming from the belt assembly. Tensioner pulley is shaky and alternator had a piece brake off causing metal shavings to fly around.

Purchased brand new with 0 miles. The system malfunction popped up and engine would not turn over after running perfectly fine a hour prior.Had to get towed to dealership and found a faulty battery luckily I still had 100 or so miles left on my warranty.Happened again last month the same exact thing except this time I had to get a jump off after several minutes the engine finally turned over.

I got in the car to start it and it would not start. This happened at the car wash one morning. It didn’t give me any warnings of a bad battery and the only way I started it was to have someone jump it. This has happened 4 times now. It takes several minutes for the battery to charge to start the car. I have been stranded 2 times and could not get to work on time 2 times.

While driving down the highway along with other traffic the car went into limp mode and lost power instantly almost causing an accident. Come to find out the engine bearings caused the engine to go on it without any warning signs. This car has been maintenanced and taken care of and had the same issue happen that the other nissans have had that they have the recall out for.

Electric steering rack has play and causes violent shaking. Huge safety risk as this could have complete failure and cause accidents. Vehicle started showing symptoms at 68,000 miles and after reading separate forums, many others have experienced these same issues. No warning lights appear on the dash and no inspection by safety highway patrol. This is a serious issue especially given I do not appear to be the only person experiencing this. The steering and suspension seem to be a common issue on this call given the recall on the tie rods.

purchased my 2021 Nissan Sentra brand new with no prior owner. Around 2023, the air conditioning system stopped working. The AC will not turn on at all the switch or control that activates the system is completely unresponsive. I brought the vehicle to a Nissan dealership, where I was quoted $300 just for a diagnostic test, with no warranty coverage or acknowledgment of a known issue. This failure appears to be linked to a potential electrical fault or defective AC component. It compromises both comfort and safety, especially in extreme temperatures. Numerous complaints online suggest this is a recurring issue among Sentra owners, yet Nissan has not issued a recall for the AC system. I am submitting this report to request an investigation into a possible manufacturing defect and to advocate for a formal recall.

The check engine light comes on with a malfunction symbol. The car has delay acceleration, jerks, hard shifts.

Since having my Nissan 2021 Sentra I have for one, had to replace the battery in it twice. On a more serious note, it is now stopping the car at random and unnecessary times stating an object is in front of me. It happens once a while ago and I did not have any other signs, and it was just for a second, so I tried not to stress about it. Now it is happening more often and just this morning happened three times. Causing my car to come to a complete stop, it is very dangerous and I am not sure what I am to do about it.