2008 GMC Sierra 2500 Electrical system Problems
- Complaints
- 3about this part
- Share
- 5%of 63 total for the year
- Median mileage
- 153,880miles
- 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 Sierra 2500, 5% of the 63 complaints for this model year. Where a mileage was given, the median is 153,880 miles. 1 recall campaign on record is filed under a similar system.
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.
“Odometer Fraud. The contact purchased a 2008 GMC Sierra 2500. The contact stated that while researching the history of the vehicle it was discovered that there was a mileage discrepancy. The vehicle was a private sale. At the time of purchase, the vehicle mileage was 166,521 and while researching online, it was discovered that the mileage was 207,759.”
NHTSA complaint #11656262, filed 2025-04, 207,759 miles“The brake lights on my 2008 Gmc sierra will get stuck on, indicating to others that I am braking when in actuality I am not. I have replaced the brake switch and the issue continues.”
NHTSA complaint #10817148, filed 2015-12Related recalls
- 14V407000Jul 2, 2014General Motors LLC (GM) is recalling certain model year 2007-2011 Chevrolet Silverado HD 2500/3500 trucks manufactured January 18, 2007, to June 22, 2011, and…Covers: GMC Sierra 2500 2007–2011, Chevrolet Silverado 2500 2007–2011, Silverado 3500 2007–2011 +1 more
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Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 5 | 38% |
| 2025 | 1 | 4% |
| 2024 | 33 | 31% |
| 2023 | 6 | 18% |
| 2022 | 12 | 27% |
| 2021 | 6 | 12% |
| 2020 | 13 | 16% |
| 2019 | 9 | 28% |
| 2018 | 7 | 20% |
| 2017 | 6 | 16% |
| 2016 | 9 | 15% |
| 2015 | 11 | 12% |
| 2014 | 4 | 13% |
| 2013 | 3 | 7% |
| 2012 | 4 | 13% |
| 2011 | 9 | 14% |
| 2009 | 7 | 23% |
| 2008 | 3 | 5% |
| 2007 | 5 | 6% |
| 2006 | 4 | 6% |
| 2005 | 42 | 37% |
| 2004 | 48 | 34% |
| 2003 | 36 | 23% |
| 2002 | 1 | 1% |
| 2001 | 4 | 3% |
| 2000 | 3 | 6% |
| 1999 | 2 | 6% |
| 1998 | 1 | 7% |
Other parts of the 2008 GMC Sierra 2500
39 complaintsOther or unknown
9 complaintsEngine
4 complaintsFuel system
4 complaintsBody and structure
3 complaintsTransmission and drivetrain
3 complaintsEquipment
2 complaintsSeat belts
2 complaintsSteering
2 complaintsBrakes
1 complaintsEngine cooling
1 complaintsLatches, locks and linkages
1 complaints
← All problems reported for the 2008 GMC Sierra 2500
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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