Problems · NHTSA complaints

2021 Nissan Sentra problems

Owners filed 133 complaints about the 2021 Nissan Sentra with NHTSA between Jun 2021 and Oct 2026. The most-cited component is forward collision avoidance (40).

Complaints
133
Filed with NHTSA
Crashes
15
Reported by owners
Fires
1
Reported by owners
Injuries
9
People reported injured
Deaths
0
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Forward collision avoidance40
  2. Steering40
  3. Electrical system38
  4. Service brakes24
  5. Engine7
  6. Suspension6
  7. Vehicle speed control6
  8. Exterior lighting6
  9. Wheels5
  10. Power train4
  11. Lane departure3
  12. Back over prevention3
  13. Structure3
  14. Visibility/wiper2

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Data from NHTSA Complaints API · synced Nov 3, 2026NHTSA vehicle page
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
202113
202215
202342
202426
202521
202616

Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.

03 —Owner reports

Top problems in owners’ words

Verbatim from NHTSA complaints, newest first

Forward collision avoidance

40 reports2 crashes
“The contact owns a 2021 Nissan Sentra. The contact stated that while her son was driving at approximately 30-35 MPH, a yellow triangle warning light illuminated, and the vehicle independently applied the brakes forcefully and made a sharp left turn. The vehicle then rolled over twice and landed upside down in a ditch. The driver crawled out through broken glass. The contact stated that the air bags deployed as needed. The contact arrived at the scene and transported the driver to the hospital. The contact's son sustained lap belt bruises on the lower stomach and upper legs, a cut arm, neck, back, and rib pain, a neck contusion, and slightly forward-displaced C2 and C3 vertebrae. A Police report was filed. The vehicle was towed, inspected, and deemed a total loss by the insurance company. The dealer was contacted and informed that the vehicle might have experienced phantom braking. The contact was referred to the manufacturer for assistance. The manufacturer was contacted and advised the contact that a fee was required for a third-party investigator to retrieve data from the Event Data Recorder (EDR). The failure mileage was approximately 75,000.”
Owner complaint to NHTSAFiled Oct 23, 2026Forward collision avoidanceCrash reportedODI 11773155

Steering

40 reports11 crashes1 fire2 related recalls
“The scope of repair required fixing a recalled tie rod that suffered a catastrophic failure, which directly caused the vehicle’s ADAS, Advanced Emergency Braking (AEB), and collision detection systems to crash. Berman Nissan promised a legally compliant, safe repair but breached this agreement by returning an unsafe vehicle, failing to road-test the steering component (verified by identical check-in/out mileage), and intentionally scrubbing trouble codes to conceal active safety failures. Staff explicitly refused all safety assistance, failed to secure my signature on any authorization paperwork from tow to pick-up, and Nissan corporate stated they were 'not legally required' to resolve the hazards. Service personnel stonewalled the issue, and management only escalated the matter to Service Director Mark Yalda after I disclosed I possessed concrete video proof of the identical mileage and unsigned invoices.”
Owner complaint to NHTSAFiled Jul 15, 2026Steering, Forward collision avoidanceODI 11750579

Electrical system

38 reports
“The infotainment/radio system in my 2021 Nissan Sentra intermittently reboots and produces static. When this happens, the backup camera freezes or shuts off completely. This has occurred while I was actively reversing, causing a sudden loss of rear visibility. The screen either goes black or restarts, making the backup camera unavailable. This is a safety concern because the backup camera is required for safe reversing, and the failure happens without warning. The issue occurs repeatedly and is not driver-related. The problem appears to be related to the head unit malfunctioning, which disables the backup camera system.”
Owner complaint to NHTSAFiled Apr 27, 2026Electrical systemODI 11733950

Service brakes

24 reports7 crashes1 fire
“I purchased this vehicle brand new in 2021. Since then, I have experienced a very concerning safety issue on multiple occasions involving the automatic emergency braking system. While driving normally, with the vehicle operating without any apparent problems, the emergency braking system has suddenly activated and warning lights have appeared on the dashboard, even though there was no vehicle, pedestrian, object, or other obstruction in front of me that would have required emergency braking. This has happened to me several times and is extremely frightening. During the most recent incident, the vehicle behind me had to quickly go around my car to avoid rear-ending me after my vehicle unexpectedly braked. After researching this issue, I found numerous reports from other owners describing what appears to be the same or a very similar problem. This makes me extremely concerned that this may be a widespread safety issue with this vehicle. Fortunately, when these incidents occurred, I was traveling at approximately 40 MPH. I am very concerned about what could happen if the emergency braking system were to activate unexpectedly while traveling on the freeway at 65…”
Owner complaint to NHTSAFiled Sep 30, 2026Service brakes, Forward collision avoidanceODI 11768165

Engine

7 reports
“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.”
Owner complaint to NHTSAFiled Nov 17, 2025EngineODI 11699960

Suspension

6 reports1 crash
“My vehicle previously had the tie rod issue repaired under the original recall\. However, the same problem has now returned\. I am experiencing a sharp/clunking noise when turning left while the vehicle is moving, which is very concerning because this involves the vehicle’s steering and suspension\. I checked Nissan’s recall information online using my VIN, and it currently states that there are no open recalls\. However, I have only had this issue repaired **once**, under the original recall, and the same problem is happening again\. I am concerned that the original recall repair did not permanently correct the problem, or that the replacement component may have developed the same defect\. I do not believe that simply showing “no open recalls” should prevent Nissan from investigating a recurring safety\-related defect that was previously repaired under a recall\. I am requesting that Nissan: 1. Review my vehicle’s complete recall and repair history\. 2. Investigate why the same tie rod/steering problem has returned after the recall repair\. 3. Determine whether the replacement part or repair procedure is defective or insufficient\. 4. Provide a repair at no…”
Owner complaint to NHTSAFiled Sep 9, 2026SuspensionODI 11763094
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 3, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.