See also:

Exterior Lighting
The exterior lamps control is located on the instrument panel to the left of the steering wheel. : Turns off the automatic headlamps and Daytime Running Lamps (DRL). Turning the headlamp contr ...

Add-on Electrical Equipment
The OnStar system is integrated into the electrical architecture of the vehicle. Do not add any electrical equipment. See Add-On Electrical Equipment. Added electrical equipment may interfer ...

Driving on Grades
Reduce speed and shift to a lower gear before starting down a long or steep downgrade. If the transmission is not shifted down, the brakes might have to be used so much that they would get hot and n ...