2007 GMC Sierra Classic Electrical system Problems
- Complaints
- 3about this part
- Share
- 17%of 18 total for the year
- Median mileage
- 47,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the electrical system of the 2007 GMC Sierra Classic, 17% of the 18 complaints for this model year. Where a mileage was given, the median is 47,000 miles. 2 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.
“Engine shuts down, service brake system message appears in display, ABS light illuminates. Since engine shuts down, lose steering and braking. Latest incident occured on highway during rush hour. This also happened first year I owned the vehicle (I bought it new), they replaced the underhood fuse box. This happened again on march 13. They replaced a blown PCM fuse and said they could find nothing wrong. When it occured on 3/29, I replaced the fuse 5 times to try and get off the freeway. After each time it was replaced, I could drive 1-2 miles before it would blow again.”
NHTSA complaint #10323063, filed 2010-03, 33,800 miles“Hvac system became operational with the ignition turned off for an unknown period of time while the truck was parked in the garage. Relay resistor module overheated causing melting of the resistor and circuit board. Truck cabin and vicinity around the truck had a strong smell of burning plastic. Truck cabin filled with smoke. Was only able to turn off the HVAC system and stop the burning by disconnecting the wiring harness. Dealer had to replace the blower motor, resistor, module connector and relay. …”
NHTSA complaint #10484832, filed 2012-11, 92,000 milesRelated service bulletins
- 10028831Jun 1, 2015General motors: intermittent mil/ses/ dtc p2138 with reduced engine power (repair instrument panel (ip) to body harness connector). 2005-08 gm passengers cars/light duty trucks…
- 10114470Apr 17, 2015This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue…
- 10112428Oct 25, 2013This Preliminary Information communication provides information to the technician about customers that are unable to override the automatic door locking feature. Technician will…
- 10032332Dec 1, 2011Gm/hummer/saab: intermittent illumination of mil, service lamps, service messages, or dtc set by various control modules-diagnosing and repairing fretting corrosion (disconnect…
- 10026744Jun 1, 2008Gmc: sir mil dtc b0084 and/or b0085. This concern could be caused by broken seat position sensor circuits under the driver or passenger front seats. Over time, from repeated seat…
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2007 | 3 | 17% |
Other parts of the 2007 GMC Sierra Classic
12 complaintsFuel system
4 complaintsEngine cooling
2 complaintsTransmission and drivetrain
2 complaintsSteering
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 2007 GMC Sierra Classic
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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