2008 Pontiac G6 Electrical System Problems
Owners have filed 225 complaints with NHTSA about electrical system problems on the 2008 Pontiac G6, 21% of all complaints for this model year. Half of the reports with a mileage happened before 80,000 miles. The words owners use most often: “low beam” (12% of reports).
- 225electrical system complaints
- 80,000median miles at failure
- 6mention a crash
- 3mention an injury
- 1related recalls
- 38%of reports with a speed happened at 50+ mph
What owners describe
Phrases that appear unusually often in these complaints compared with complaints about other cars.
- Low beam: mentioned in 27 of 225 complaints (12%)
- Wiring harness: mentioned in 17 of 225 complaints (8%)
- Electronic stability control: mentioned in 16 of 225 complaints (7%)
- Exterior lighting: mentioned in 15 of 225 complaints (7%)
At what mileage do electrical system problems happen?
Based on 174 complaints that reported the odometer reading.
How serious are the reports?
Of 225 complaints, 6 mention a crash, 6 a fire, 3 an injury.
Pontiac G6 electrical system complaints by model year
When owners reported it
Related recalls (1)
Electronic stability control (esc); vehicle speed control:cruise control; exterior lighting:brake lights:switch; electrical system:wiring
Problem: General Motors LLC (GM) is recalling certain model year 2004-2012 Chevrolet Malibu vehicles manufactured May 16, 2003, through October 11, 2012, 2004-2007 Malibu Maxx vehicles manufactured June 25, 2003, through April 5, 2007, 2005-2010 Pontiac G6 vehicles manufactured May 26, 2004, through January 4, 2010, and 2007-2010 Saturn Aura vehicles manufactured April 24, 2006, through May 26, 2009. In the affected vehicles, increased resistance in the Body Control Module (BCM) connection may result in voltage fluctuations in the Brake Apply Sensor (BAS) circuit. These fluctuations can cause one or more of these conditions: the brake lights to illuminate without the brake pedal being pushed; the brake lights to not illuminate when the pedal is pushed; difficulty disengaging the cruise control; moving the gear shifter out of the 'PARK' position without pushing the brake; and disablement of crash avoidance features such as traction control, electronic stability control, and panic braking assist features.
Risk: Any of the above failure conditions increases the risk of a crash.
Fix: GM will notify owners, and dealers will attach the wiring harness to the BCM with a spacer, apply dielectric lubricant to both the BCM and harness connector and the BAS and harness connector, and will relearn the brake pedal home position, free of charge. The manufacturer distributed an Interim letter to customers on July 14, 2014. The recall began on August 18, 2014. Owners may contact General Motors customer service at 1-800-222-1020 (Chevrolet), 1-800-762-2737 (Pontiac), 1-800-553-6000 (Saturn). GM's number for this recall is 13036.
What owners report
Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.
Problem with completed recall 14V252000. Symptoms have returned. In some vehicles, increased resistance in the Body Control Module (BCM) connection can cause voltage fluctuations in the Brake Apply Sensor (BAS) circuit. This may lead to: Brake lights illuminating without the brake pedal being…
While driving my 2008 Pontiac G6 Base, I lost electrician power to the vehicle, on my car it utilizes an electric power steering module instead of fluid and a pump. When I lost power to the car the wheel became stiff but when I regained power the steering column while the vehicle was in motion did…
The contact owns a 2008 Pontiac G8. The contact stated that while driving approximately 80 mph the cruise disconnected had erroneously deactivated and the brake lights had remained illuminated . The contact replaced brake sensors, emergency brake sensors and ABS Module but the failure continued to…

Frequently asked questions
Do all 2008 Pontiac G6s have electrical system problems?
No. NHTSA has 225 owner complaints about electrical system for the 2008 Pontiac G6 (21% of the 1,080 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.
Was there a recall on the 2008 Pontiac G6 electrical system?
Yes: 1 safety recall list electrical system. Check your VIN on NHTSA.gov to see whether the fix was done on your car.
At what mileage do electrical system problems start?
The median reported mileage is 80,000 miles: half of the reports with a mileage came before that.
What do owners say about electrical system problems on the 2008 Pontiac G6?
The most frequent phrase is “low beam”, in 27 of 225 complaints, followed by “wiring harness” (17).
Other 2008 Pontiac G6 problems
See all 2008 Pontiac G6 problems or electrical system problems across all G6 years.