Question about 1999 GMC Sonoma

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Guages or HVAC Controls don't light up

My 99 Sonoma's gauges work fine but quit lighting up at night. Same for the HVAC panel under the stereo. I checked the fuses and all was fine. I'm stumped. Please help.

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Good Day,


Sounds to me like your headlight switch needs to be replaced. When you turn your light's on (parking or headlights) the switch sends two outputs, one to the exterior lights and the other output is your cluster and hvac illuminaton. You can get a new switch from a dealer for around 30 bucks new. Here's a pic of what you need:

Guages or HVAC Controls don't light up - f92dbb2.jpg
You do need to remove your outer dash panel to gain access.

Sorry this posting is so short, just worked a 14hr day. If you need further help with replacing the switch I can walk you though the process.

Hope this helps for now.

Posted on Sep 27, 2008

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