OnStar®

For vehicles with an active OnStar subscription, OnStar uses several innovative technologies and live Advisors to provide a wide range of safety, security, navigation, diagnostics, and calling services.
Automatic Crash Response
In a crash, built-in sensors automatically alert an OnStar Advisor who is immediately connected to the vehicle to see if you need help.
See also:
Fuel
Use of the recommended fuel is an important part of the
proper maintenance of this vehicle. To help keep the
engine clean and maintain optimum vehicle
performance, we recommend the use of gasoli ...
Setting the Tone
(Bass/Midrange/Treble)
BASS/MID/TREB (Bass, Midrange, or Treble): The
radio may display some or all tones, such as BASS,
MID, and TREB. To adjust the tone settings, press the
knob until the tone control tabs
displa ...
Comfort and Convenience
Select the Comfort and Convenience menu and Chime Volume will be displayed.
Chime Volume
This allows the selection of the chime volume level.
Press the TUNE/MENU knob when Chime Volume is highlight ...
