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Electrical systemPart report

2007 Peterbilt 379 Electrical system Problems

Complaints
1about this part
Share
17%of 6 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the electrical system of the 2007 Peterbilt 379, 17% of the 6 complaints for this model year. 1 a fire, according to the filers.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Truck was sitting unattended and wiring harness shorted out and burned all the wiring under the hood. After asking around this is a common problem with the wiring harness and I can't believe there isn't a recall for this problem. If a driver is asleep in the sleeper and this were to happen there could be a loss of life or critical/severe injury.”

NHTSA complaint #10478763, filed 2012-10

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2007117%
1998350%

Other parts of the 2007 Peterbilt 379

Engine cooling
2 complaints
Fuel system
1 complaints
Tires
1 complaints
Transmission and drivetrain
1 complaints

← All problems reported for the 2007 Peterbilt 379

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology