I just found this site and am hoping for some help. My 2008 uplander is no longer under warranty(of course) and my information display says service stability system, service ABS service traction control system, and brake system.....The ABS light and TC light are on and the brake light goes on and off. This started about a year ago but never knew there was anything I can do. I took my van in for the same problem while under warranty and they said it was a sensor problem but why did the sensor go bad within a year? Do I need to get this fixed? And shouldnt GM be paying for this? I have also had door problems since I bought the thing and have had them worked on numerous times. I havent been able to use my driver side sliding door for more than 2 years cause it needs a new motor. My passenger side has been acting up for a long time as well but I am sick of taking this in and it not getting fixed. Can GM help me?