Horn
Press 
on the steering wheel pad to sound the horn.
See also:
Care of CDs
If playing a CD, the sound quality
can be reduced due to disc quality,
the method of recording, the
quality of the music that has been
recorded, and the way the disc
has been handled. Handle ...
If the Vehicle Is Stuck
Slowly and cautiously spin the wheels to free the vehicle when stuck in sand,
mud, ice, or snow. See “Rocking Your Vehicle to Get It Out” later in this section.
If the vehicle has a traction system ...
Turn-by-Turn
This display is used for the OnStar or Navigation System Turn-by-Turn
guidance. See OnStar Overview or the navigation manual, if the vehicle has
navigation, for more information. ...