Rear Window Lockout
The rear window lockout feature prevents the rear passenger windows from operating, except from the driver position.
Press 
to activate the rear window lockout switch. The LED light comes on when activated.
Press again to deactivate the lockout switch.
See also:
Playing from an iPod
This feature supports the following iPod models:
○ iPod nano (1st, 2nd, 3rd, and 4th generation)
○ iPod with video (5.0 and 5.5 generation). Video is not shown; only audio is supported.
...
Guidelines
The RVC system has a guideline overlay that can help the driver align the vehicle when backing into a parking spot.
If the vehicle has dual rear wheels, this feature will not be available.
To turn t ...
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 ...