Dash indicator lights come on and stay on when temperatures are cold, mostly air bag, ABS, parking brake light, all gauges do not work except speedometer. This problem has no trend other than when it is cold outside, could be coincidental. At times the check engine light was on with other lights. My vehicle only had 18,000 miles on it when this started, but the 3 year warranty was over. GMC will not troubleshoot this problem unless I pay them almost $100 to start, and then a hourly fee. At times, these conditions exist and then later the instruments start working. Does not seem to correlate to vehicle temperature. Lights often stay on during entire trip and gauges are all off. When everything suddenly starts working correctly it does not appear to be because of a bump or warming of the vehicle. In December I took vehicle to GMC, and the service representative indicated problems on work order. He put check battery, of course no troubleshooting took place. Since then I have contacted several GMC dealerships, they all want ridiculous fees to check it out. This vehicle has been kept in the heated garage and barely driven until January 2007. I think this is a safety issue because I don't know if it could cause a fire in the wiring. When the gauges are out, it is not possible to see how much gas you have or if oil/water is low. There is no way to monitor the functioning of the vehicle, or the air bags or the brake system.

- Kalamazoo, MI, USA