Two problems related to turn signal have been reported for the 2004 Chevrolet Tahoe. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Chevrolet Tahoe based on all problems reported for the 2004 Tahoe.
2004 Tahoe lights (headlamp, running and turn signals) explode or burn out repeatedly due to the lens filling with water. Issue has been occurring since vehicle was new. My fault I have never taken it to the dealer, I have just been replacing the bulbs and draining the water. Maybe gm can look at improvements for the next generation of Tahoe.
Occationally when turn indicator is set to turn to right, all turn indicator lights start to blink (hazard-lights).