CAN COMMUNICATION CODES – DIAGNOSTIC TIPS AND GUIDELINES This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
full bulletin at NHTSA ↗2021 Nissan Frontier electrical problems
severe 4 complaints filed with NHTSA · avg repair $850 · see electrical across all vehicles →
Complaints
4
Recalls
0
Avg fix
$850
1crash
When does it fail?
Of the 4 electrical complaints filed for the 2021 Nissan Frontier, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering electrical on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
CAN COMMUNICATION – NETWORK DIAGNOSTIC FLOW CHART This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
full bulletin at NHTSA ↗VEHICLE KEY NOT DETECTED / AUTHENTICATED, ENGINE WILL NOT START This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
full bulletin at NHTSA ↗INTELLIGENT KEY INITIALIZATION PROCEDURE STOPS OR WILL NOT CONTINUE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Discard all previous versions of this bulletin.
full bulletin at NHTSA ↗SOFTWARE UPDATE FOR INFOTAINMENT ISSUES This bulletin is no longer active. To access infotainment software updates via the Infotainment Software Update Utility: Select SPECIALTY TOOLS, and then select Infotainment Software Updates on the left side of ASIST. Please discard previous versions of NTB23-018.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 4 most recent
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,…
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…
The contact owns a 2021 Nissan Frontier. The contact stated while attempting to start the vehicle with the brake pedal depressed all the way to the floorboard, the contact heard an abnormal sound coming from the engine compartment, after which, upon pressing the Push to Start button the vehicle failed to start. After several attempts, the vehicle was able to start, but the failure became a…
The contact owns a 2021 Nissan Frontier. The contact stated while attempting to start the vehicle, the vehicle failed to start as intended. After several attempts, the contact was able to start the vehicle, after which the vehicle returned to normal functionality, but the failure became a regular occurrence. The contact also stated that when the failure occurred, the exterior lights would not…
Had electrical trouble with your 2021 Nissan Frontier?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the electrical problem on the 2021 Nissan Frontier?
It's a meaningful issue. 4 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $850.
At what mileage does the electrical typically fail?
Based on the 4 complaints filed, electrical issues most often appear around 26,500 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
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.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2021/Nissan/Frontier.
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. Some links on this page are affiliate links.