2005 TAHOE MANY BULBS BURNING OUT ALL THE TIME FROM HEADLIGHTS TO RADIO LIGHTS TO STEERING WHEEL LIGHTS. DEALER CAN’T FIND PROBLEM. HELP
First check would be the voltage output from the alternator with the engine running. I’m not positive what the maximum should be, but I think if it’s over 14.7 volts, you have a problem. Other than that, I’d look for bad grounds, especially from the negative battery cable to the chassis, and from engine to chassis, as well as the alternator’s connections.