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 Locking
When locking the doors with the power lock switch and a door or the liftgate is open, the doors will lock five seconds after the last door is closed. You will hear three chimes to signal that the ...

Sound Menu
(Sound): Press this key or press CONFIG to access the Sound menu to adjust the treble, midrange, bass, fade, balance, and Digital Signal Processing (DSP). The system automatically stores audio ...