OnStar®
If the vehicle is equipped with an
active OnStar system, that system
may also record data in crash or
near crash-like situations. The
OnStar Terms and Conditions
provides information on data
collection and use and is available
at www.onstar.com (U.S.) or
www.onstar.ca (Canada), or by
pressing the 
button and
speaking to an advisor. See OnStar
Overview for more
information.
See also:
Sending a Number During a Call
1. Press . The system responds
with “Ready”
followed by a tone.
2. Say “Dial”. The system responds with “Say a
number to send tones” followed by a tone.
3. Say the number to send.
...
SERVICE PARKING BRAKE
This message is displayed when
there is a problem with the electric
parking brake. See Parking Brake for more information.
Take the vehicle to your dealer. ...
Horn
Press on the steering wheel pad
to sound the horn. ...