See also:

Headlamp Wiring
An electrical overload may cause the lamps to go on and off, or in some cases to remain off. Have the headlamp wiring checked right away if the lamps go on and off or remain off. ...

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 ...

Removing the Spare Tire and Tools
The equipment needed to change a flat tire is stored under the storage tray, located on the driver side trim panel, over the rear wheelhouse. Regular Wheelbase Shown, Extended Wheelbase Similar. ...