Some of the interior lights don't work

Charlotte Groves

Asked by Jan 13, 2015 at 06:03 PM about the 1993 Buick Riviera STD Coupe

Question type: Maintenance & Repair

I have a 93 Buick Riviera.  All the dash lights work except those for the a/c, radio, and gear shift and the headlights don't go off automatically anymore.  I think I have a short somewhere because the fuses are ok.  How do I find out where that short is?

3 Answers

Jason Zane

check the twighlight sentinel... it should be at off position.

Charlotte Groves

twilight sentinel is at off position. it doesn't seem to make any difference which position it is doesn't work. the lights on the radio, console gear shift, and heat and air do not work. are they all on the same wiring harness? maybe there is a short?


Charlotte yes the lights you described are on a different circuit. These items/locations have its own light circuit that's inter connected with lets say the radio. It has been my experience to either locate a radio/heat/a/c control panel with the lights working or just leave it be. The lights works from a circuit board where the connectors are soldered in. The light that's illuminates the console gear shift should have its own light/bulb.

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