See also:

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 ...

Delayed Entry Lighting
The interior lamps will turn on if you open the door when it is dark enough outside. When you close the door with the ignition off, the interior lamps will stay on for up to 25 seconds or until ...

Shocks and Struts
Shocks and struts help aid in control for a smoother ride. • Signs of wear may include steering wheel vibration, bounce/sway while braking, longer stopping distance, or uneven tire wear. â ...