Instrument Panel Lights Flickering and Exterior Lights Intermittent on GMC G1500

The headlight switch used on the 1995-1996 GMC Vandura is known to fail through normal operation. Since the headlight switch is also integrated into the interior lights, a malfunctioning switch can cause issues with interior lights as well.

• Symptoms of a failed headlight switch include:
• Headlights and taillights failing to turn on or off
• Interior lights flicker, or fail to turn on or off
• Gauge cluster lighting off or flickering with headlights on
• Parking light malfunctions

This issue is well known with General Motors Trucks and SUVs, and is solved by testing and, if needed, replacing the headlight/dimmer switch. Bad grounding wires at the tail-lights, and dirty/corroded tow package wires can also lead to some of these issues.