2006 GMC Savana 3500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2006 GMC Savana 3500
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2006 GMC Savana 3500 ProblemsInstrument Panel Lights Flickering and Exterior Lights Intermittent
The headlight switch used on the GMC Savana 3500 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.
The fuel pump may fail causing the engine to stall and not restart.
The spark plugs should be replaced every 100,000 miles. Our technicians recommend replacing the spark plug wires also at this time.
2006 GMC Savana 3500 QuestionsMy hazardous lights simply stopped working along with both lighter slots. (1 answer)
I've checked all fuses relating to both the lighter and the hazardous lights under the hood and under the seat and all are good. There are no other lights, warnings etc. coming on. I am at a loss, what else should I be looking at/for?