What's wrong with my headlights

Asked by Jun 08, 2017 at 11:18 PM about the 2006 Pontiac Grand Prix GT

Question type: Maintenance & Repair

Every time I get in my car and start it up my headlights
would work then once I start driving on the road they
would randomly shut off even if I play with the adjustment
lights they would come on then shut right back off my
brights won't even work

2 Answers


It may need a new Automatic Headlamp Control Ambient Light Sensor that controls the automatic mode of the headlights. Here is a sight for one of these... https://www.carid.com/acdelco/gm-original-equipment-ambient-light-sensor-mpn-13498957.html?singleid=213329572&url=1495343


Do they both go off at the same time, or randomly one at a time? If its random its likely the bulbs.Have you replaced them? Modern halogen bulbs are notorious for doing that when the filament inside is broken. It's a stiffer material that manages to weld itself back together briefly, usually when cool and then breaks again when it gets hot.

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