Skip to content
Electrical systemPart report

2008 GMC C Series Electrical system Problems

Complaints
3about this part
Share
60%of 5 total for the year
Median mileage
69,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the electrical system of the 2008 GMC C Series, 60% of the 5 complaints for this model year. Where a mileage was given, the median is 69,000 miles.

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.

“First we were driving out of town and the radio start going on and off, the locks began going up and down until the truck lost power. The truck loses power with out any reason. We have check the battery, everything with out being able to determine why. After few minutes the truck starts up and everything goes back to normal. I am concerned that one of these days the truck is going to suddenly stop and my son could get into an accident. I bought this truck for my son to go to school and I don't feel he is safe on it for this electrical or ignition problem.”

NHTSA complaint #10637313, filed 2014-09, 75,000 miles

“I bought two new Gmc vehicles, an acadia and a sierra 1500 pickup truck. While under warranty the door locks started sticking and had to be repaired. A few months later it started again. I took it back to the dealership and was told it was now out of warranty. The service manager refused to repair them with out a $500.00 charge for each door. I refused being very disappointed that I would buy two vehicles and receive such service after bailing out the company as a tax payer. All companies that were bailed out by our government should stand behind the buyers who stood behind them. …”

NHTSA complaint #10483319, filed 2012-11, 63,000 miles

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2008360%

Other parts of the 2008 GMC C Series

Air bags
2 complaints
Engine
1 complaints
Latches, locks and linkages
1 complaints

← All problems reported for the 2008 GMC C Series

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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