2009 Pontiac G8: ABS light or ABS activating

Filed Aug 8, 2023 · Electrical, Lights · NY

7/17/21 (about 94500 miles) - While driving in heavy rain on a congested highway, with my windshield wipers turned on (of course), the wipers suddenly stopped working. This could have easily killed me and my family. The wipers would not turn back on, no matter what I did. At a rest stop that afternoon, and then later during extensive testing, I found that turning the wipers on would never actually make the wipers activate--but it would cause the engine to shut off and caused the car to issue numerous, varying error codes related to numerous vehicle systems (including ABS). Through much difficulty, I was able to find that this was caused by a faulty electrical ground at what's known on the Pontiac G8 as ground point G102. The electrical ground was restored via ground connection elsewhere, and the wipers resumed functioning. Roughly 2 years later (July/August 2023, about 104,000 miles), my low-beam headlights didn't function at ignition one day. Obviously, lacking headlights is a core safety issue. I learned that the low-beams also use ground point G102. Once again, with the electrical ground restored via a connection elsewhere, the low-beams started working again. Two different service stations were unable to figure out the windshield wiper issue. I only solved it by reading what others wrote on a Pontiac G8 enthusiast message board. On those message board threads, you can see that many people have had these same exact issues with the Pontiac G8--all related to the G102 ground point. Obviously, having the windshield wipers and/or headlights fail suddenly and without warning (neither failure gave any warning in advance) in a situation where the wipers or lights are needed could have catastrophic consequences. Since I'm unaware of any other ground point failing on the Pontiac G8, I am wondering if G102, in particular, needs a recall and a repair, to address this. (I am the original owner. The car has been stored outside, in the Northeast.)

Filed Jun 25, 2020 · Brakes · GA

Abs lights.

Filed Nov 25, 2013 · Driver assistance · 41,000 miles · KY

Pontiac g8 gt ABS/ses/traction control off indicators/messages and or loss of power with the radio turned up.

Filed Jul 23, 2011 · Acceleration, Brakes · 40,000 miles · KY

Vehicle will suddenly throw ABS/traction control/brake system/airbags failure notices; vehicle then goes into limp mode and the transmission locks into first gear. Has occurred 3 times, dealership unable to diagnose or repair. They have cleared all mil/dtc codes and re-flashed ECM 3 times. The problem has occurred once on the interstate in heavy traffic at 70mph and twice on city streets in rush hour traffic, with significant chance for accident/crash. When the vehicle exhibits this condition, loss of control occurs, as engine delivers no power to transmission and car is limited to 25mph maximum speed.

Filed Jul 23, 2011 · Airbags, Driver assistance · 40,000 miles · KY

Vehicle will suddenly throw ABS/traction control/brake system/airbags failure notices; vehicle then goes into limp mode and the transmission locks into first gear. Has occurred 3 times, dealership unable to diagnose or repair. They have cleared all mil/dtc codes and re-flashed ECM 3 times. The problem has occurred once on the interstate in heavy traffic at 70mph and twice on city streets in rush hour traffic, with significant chance for accident/crash. When the vehicle exhibits this condition, loss of control occurs, as engine delivers no power to transmission and car is limited to 25mph maximum speed.