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Electrical system

2021 Peterbilt 389 Electrical problems

Owners have filed 1 complaint about the 2021 Peterbilt 389's electrical system with NHTSA - 100% of all its complaints, most recently on November 12, 2025. Dead batteries, warning lights, wiring, alternators, infotainment and electronic module failures.

Complaints
1
Recalls
0
Crashes
0
Fires
0
Injuries
0
Deaths
0

Electrical complaints

Electrical system

Odometer Fraud. The contact purchased a 2021 Peterbilt 389. The contact stated that while attempting to restart the vehicle after running out of diesel, it was discovered that there was a mileage discrepancy. The contact stated that while restarting the vehicle, the fuel filters needed to be refilled with diesel. The contact stated that whenever a trailer was serviced, the date and mileage were written on the filters. The contact stated that the mileage was significantly higher as written on the filter than what...

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was written on the sales contract and shown on the odometer. The vehicle was a dealer sale. At the time of purchase, the mileage was 411,000, and while refilling the fuel filters, the mileage was 671,000.

Filed Incident Electrical systemNHTSA 11698892

Peterbilt 389 electrical complaints by year

389 electrical problems, every year

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Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data

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