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.
2021 nissan Sentra electrical problems
moderate 36 complaints filed with NHTSA · avg repair $850
Complaints
36
Recalls
0
Crashes
0
Avg fix
$850
What owners are reporting 8 most recent
The passenger window and back windows will not roll up or down. The only window that works is the drivers window. This car was bought 2 months ago and stopped working last week.
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.
I was traveling at about 40mph when my vehicle, with no traffic in sight, had the automatic emergency brake go off and reduced my speed to 32mph. My safety concern is what if this happens on the freeway or even while raining. if there was a car behind me what if it caused them to get road rage. ***dashcam video available***
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 failur…
The only window that is working properly in my car is the driver window. The other 3 sometimes work and sometimes will not roll down at all. On occasion it goes down but does not come back up or doesn't go back up but half way then stops. I have taken to the dealership twice and still it has not been fixed. Cannot really use the windows at this point as I may not be able to get them back up so def…
Front passenger and all rear windows intermittent will not operate.
The air conditioning turns off by itself and the high beams don't work
Common questions
How serious is the electrical problem on the 2021 nissan Sentra?
It's a documented issue but not catastrophic. 36 complaints have been filed. Repairs average $850 and most owners catch it before it causes a breakdown.
At what mileage does the electrical typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
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