The exterior lamp control is on the instrument panel to the left of the steering column.
There are four positions.
: Turns the exterior lamps off and deactivates the AUTO mode. Turn again to reactivate the AUTO mode.
In Canada, the headlamps will automatically reactivate when the vehicle is shifted out of P (Park).
AUTO : Turns the exterior lamps on and off automatically depending on outside lighting.
: Turns on the parking lamps including all lamps, except the headlamps.
: Turns on the headlamps together with the parking lamps and instrument panel lights.
See:
GM Oil Life System Resetting
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