OK - my Tahoe has a brake issue I can't figure out. Bake lights work fine when lights off. When lights on, 3rd brake works but both brake taillights do not. If i pull one brake bulb the other light works fine. tried with 3 bulb on each side same results. Also, rear hazard lights to not flash with light on or off and turn signals work fine until you turn the lights on at which point the instrument cluster indicators flash double-time and rear lights occasionally flash and are dim. I have checked all fuses. Also note that the instrument cluster is bad, typical for these years and I'll be sending in to be repaired soon. Ideas?
Cool site BTW, has help me a lot with the Tahoe.
Cool site BTW, has help me a lot with the Tahoe.