United States 87V047000
General Motors, LLC
The problem
THE TWILIGHT SENTINEL POTENTIOMETER (THUMBWHEEL CONTROL) MIGHT HAVE BEEN MANUFACTURED WITH ELECTRICAL CONTACTS WHICH COULD RESULT IN AN INTERMITTENT HEADLIGHT CIRCUIT.
Risk
WITH THE TWILIGHT SENTINEL SYSTEM ON, THE INTERMITTENTCIRCUIT COULD CAUSE HEADLIGHT AND INSTRUMENT PANEL LIGHTS TO GO OUT. SUDDENLOSS OF HEADLIGHTS COULD REDUCE DRIVER VISIBILITY AND MIGHT RESULT IN A VEHICLECRASH WITHOUT PRIOR WARNING.
What owners should do
INSTALL A NEW PART IN ONE OF THE VEHICLES CONTROL COMPUTERS TO PREVENT THIS CONDITION FROM OCCURING.
Units 56783