See also:

Muting a Call
During a call, all sounds from inside the vehicle can be muted so that the person on the other end of the call cannot hear them. To mute a call, press , and then say “Mute Call.” To cancel mute, ...

Horn
Press on the steering wheel pad to sound the horn. ...

Lane departure technology debuts
Continuing Cadillac's commitment to using advanced safety features, the 2008 STS will offer new features including a new performance handling package; enhanced variable-effort steering with Stabil ...