See also:

TTY Users
OnStar has the ability to communicate to the deaf, hard-of-hearing, or speech-impaired customers while in the vehicle. The available dealer-installed TTY system can provide in-vehicle acce ...

Brake System Messages
BRAKE FLUID LOW This message is displayed when the brake fluid level is low. See Brake Fluid . PRESS BRAKE PEDAL TO RELEASE PARK BRAKE This message is displayed if you attempt to release the elec ...

Adjusting the Treble, Midrange, and Bass
1. Press the TONE button. 2. Select Treble, Midrange, or Bass. 3. Select the value. Press the BACK button to go back to the Tone Settings menu. ...