Problems · NHTSA complaints

2021 Nissan Frontier problems

Owners filed 20 complaints about the 2021 Nissan Frontier with NHTSA between Aug 2021 and Oct 2026. The most-cited component is electrical system (6).

Complaints
20
Filed with NHTSA
Crashes
1
Reported by owners
Fires
0
Reported by owners
Injuries
0
People reported injured
Deaths
0
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Electrical system6
  2. Power train5
  3. Air bags3
  4. Fuel/propulsion system3
  5. Service brakes2
  6. Engine2
  7. Vehicle speed control1
  8. Suspension1
  9. Exterior lighting1
  10. Seat belts1
  11. Seats1
  12. Tires1
  13. Forward collision avoidance1
  14. Other / unknown4

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 10, 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
20213
20223
20235
20243
20253
20263

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

Electrical system

6 reports1 crash
“While driving on a two lane state route road towing a RV at approximately 60 MPH, the first indication of an issue was an amber ABS warning light accompanied by an Amber traction control light. Shortly after a red BRAKE warning light illuminated. Shortly after that an amber 4WD drive light illuminated and the 4WD drive wheel indicator went blank. Shortly after that the vehicle lost power and the engine stopped and would not restart. The whole sequence took about 30 seconds. The vehicle and trailer were barely off the road as the engine stopped suddenly and did not give me time to get all of the way over to the small two lane shoulder. This left me in a very unsafe position as vehicles were trying to pass me. Luckily a Sheriff was driving by and immediately called a tow truck. It was towed to a Nissan dealer where they found that an exhaust leak from a failed muffler melted a wiring harness. This is apparently a common issue.”
Owner complaint to NHTSAFiled Oct 13, 2026Electrical system, Service brakes, EngineODI 11770806

Power train

5 reports2 related recalls
“The contact owns a 2021 Nissan Frontier. The contact stated while driving 35 MPH, several unknown warning lights illuminated. The contact stated that an independent mechanic was contacted. The vehicle was taken to an independent mechanic where it was diagnosed with transmission control module error. The contact was informed by the mechanic to take the vehicle to a dealer to check for a recall related to the failure. The vehicle was not repaired. The VIN was not included in NHTSA Campaign Number: 22V671000 (POWER TRAIN). The manufacturer was not notified of the failure. The failure mileage was 99,172.”
Owner complaint to NHTSAFiled Feb 11, 2025Power trainODI 11641955

Air bags

3 reports
“I [XXX] PURCHASED THE VEHICLE FROM DAYTONA, NISSAN ON [XXX] ON THE MORNING OF [XXX], THE AIRBAG LIGHT CAME ON. AND WAS FLASHING. I TOOK VIDEOS OF ALL THE DIFFERENT OCCURRENCES.I WENT BACK TO THE DEALERSHIP AND TALKED TO THE SALESMAN THAT SOLD IT TO US.HIS NAME WAS SIMON.AND HE BROUGHT US IN, AND WE WERE TALKING TO A MANAGER THEY DISCONNECTED THE BATTERY AND TRY TO RESET IT AS WE WERE LEAVING, THE SALESMAN WALKED US OUT.WHEN WE FIRED UP THE VEHICLE, THE WHOLE DASH FLASHED AND WENT BLACK IN FRONT OF THE SALESMAN.A DAY LATER, WE BROKE DOWN IN THE TRUCK AND HAD TO BE JUMPED.WE TOOK IT TO THE DEALERSHIP, AND THEY PUT A NEW BATTERY IN AND A COUPLE DAYS LATER, IT CAME ON AGAIN.BUT TOOK IT IN AGAIN, AND THEY PUT US IN A RENTAL CAR FOR A WEEK THEY TOLD US WHEN WE GOT THE TRUCK BACK THAT THEY CHANGED A AIRBAG SENSOR AND THEN A COUPLE WEEKS LATER, MY SON WAS DRIVING AND THE VEHICLE STALLED ON HIM WHILE DRIVING IT TOOK HIM 4X TO FIRE IT BACK UP. WHEN IT DID FIRE BACK UP, IT WOULD ONLY GO 7 MILE AN HOUR. AND IT WAS JERKING FORWARD. HE TOOK IT DIRECTLY TO NISSAN. THEY RAN SOME DIAGNOSTIC ON IT. AND DISCONNECT THE BATTERY AGAIN, BUT THEY COULDN'T SEE IT. DO IT AGAIN. SO ON…”
Owner complaint to NHTSAFiled Oct 14, 2025Electrical system, Air bags, Fuel/propulsion systemODI 11693475

Fuel/propulsion system

3 reports
“Transmission in Park Nissan sent notice truck could roll away. Radio turns self on and off 2-3 times after starting vehicle no lights or messages show up Cell phone bluetooth won't work”
Owner complaint to NHTSAFiled Sep 27, 2022Unknown or other, Fuel/propulsion systemODI 11486649

Service brakes

2 reports1 crash
“My husband and I bought a new truck. My husband pulled the truck into our garage, once in the garage the back tires started to spin out of control, he looked down and saw he had his foot on the brake only, but truck surged forward causing no injuries but have minor truck and property damage. Have a picture of where there is stationary tire marks on our epoxy garage floor showing the black tire marks of the tires spinning out of control just before the truck surged forward. After this incident we found articles about sudden unintended acceleration which we feel is what happened to my husband. The dealership we bought the vehicle from has been derogatory from the start of this incident. We have contacted several attorneys to only be turned down saying we don’t have a case because my husband wasn’t injured (thank God). We waived the manufacturer arbitration and found only one attorney who took us through pre-litigation but then discharged us after getting the denial letter from the manufacturer, telling us to get a second opinion. We're at a crossroads and don't know what to do at this point. Morally, would it be right to trade in what we feel is a dangerously…”
Owner complaint to NHTSAFiled Oct 7, 2021Electrical system, Service brakes, Forward collision avoidanceCrash reportedODI 11435971

Engine

2 reports
“Numerous complaints of problems with bad/defective engine mounts .”
Owner complaint to NHTSAFiled Mar 14, 2023EngineODI 11511824
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026

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