This happened repeatedly one night, many times, then several weeks later instrument lights brighten while driving. Was scared headlights would shut off. What could this be?
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1997 Buick Park Avenue Question: car was idling,headlights started going off and dash lights brighten. what's up?
Answer #1G. T. Service Center (4142 Answers) , Stephenville, TX - (254) 638-3236ProfessorG November 16, 2013, 18:06Master
Would suggest have your alternator tested - sounds like the regulator is having a bad day. Overcharging the electrical system.
pushrod November 16, 2013, 18:06Master
Have the headlight switch and the wire connector to the switch checked for signs of arcing (blackened terminals) or melted plastic.