Horn
Press 
on the steering wheel
pad to sound the horn.
See also:
Passing Another Vehicle While
Using Cruise Control
Use the accelerator pedal to
increase the vehicle's speed. When
you take your foot off the pedal, the
vehicle will slow down to the
previous set cruise control speed. ...
Cellular and GPS Antennas
Avoid placing items over or near the
antenna to prevent blocking cellular
and GPS signal reception. Cellular
reception is required for OnStar to
send remote signals to the vehicle. ...
Service Parts Identification Label
This label, on the spare tire cover, has the following
information:
• Vehicle Identification Number (VIN)
• Model designation
• Paint information
• Production options and special equipme ...