Horn
Press 
on the steering wheel pad to sound the horn.
See also:
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 v ...
Additional Maintenance and Care
Your vehicle is an important investment and caring for it properly may help to
avoid future costly repairs. To maintain vehicle performance, additional maintenance
services may be required. It is ...
Transportation Options
Warranty service can generally
be completed while you wait.
However, if you are unable to
wait, GM helps to minimize
inconvenience by providing several
transportation options. Depending
on ...