See also:

Manual Rearview Mirror
Adjust the inside rearview mirror for a clear view of the area behind your vehicle. To avoid glare of the headlamps from behind, move the lever to the right for nighttime use and to the center for day ...

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the vehic ...

Window Lockout
(Window Lockout): If a crew cab or extended cab vehicle has power windows, the driver door power window switch has a lockout feature. This feature prevents the rear windows from operating, except fr ...