I recently spent a lot of time trying to figure out why the ABS (anti-lock braking system), TCS Off (traction control system) and SES (service engine soon) warning lights all lit up on the dash of my 2001 Pontiac Grand Prix GTP. I compiled all my internet research and put together a troubleshooting guide. Click on the link or thumbnail picture below if you’re having a similar problem with a General Motors vehicle.
GM ABS, TCS Off & SES Warning Lights Solution Guide?
