Horn
Press 
on the steering wheel pad to sound the horn.
See also:
Call Waiting
Call waiting must be supported on the Bluetooth phone and enabled by the
wireless service carrier to work.
Accepting a Call
Turn the MENU/SELECT knob to “Answer” and press the MENU/ SELECT knob ...
Video Display Screens
The video display screens are located on the back of each head restraint.
Notice: Avoid directly touching the video screen, as damage can occur. See “Cleaning
the Video Screens” later in this sec ...
Navigation
OnStar navigation requires the Directions and Connections service plan.
Push to receive directions or have them sent to the vehicle navigation
screen. Destinations can also be forwarded to the veh ...