See also:

Fog Lamps
Fog Lamps For vehicles with fog lamps, the button is located on the exterior lamp control, left of the steering wheel. To turn on the fog lamps, the ignition and the headlamps or parking l ...

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 ...

Underbody Maintenance
Use plain water to flush dirt and debris from the vehicle's underbody. Your dealer or an underbody car washing system can do this. If not removed, rust and corrosion can develop. ...