I too am having TRAC/STABILITY/BRAKE SYSTEM warnings on my DIC. The other day I went out to start it and nothing happened. We jumped it and it was undercharging. Ran a couple of tests and figured out that the alternator was bad. It then overcharged the battery and the car went into a loss of power mode. No shifting into 4th in manual mode. Both the alternator and battery were under warranty since they were less than a year old. Now I am getting charging system failure notifications again. The last one the voltage was reading 14.22. Under acceleration the voltage was dropping but as soon as I took my foot off the gas the voltage would increase. I have an 2007 Pontiac Grand Prix GXP with the 5.3L V8. Any suggestions???
Sent from my XT1254 using Tapatalk
