See also:

What to Add
If the vehicle has DOT 3 brake fluid, as indicated on the reservoir cap, use only new DOT 3 brake fluid from a sealed container. See Recommended Fluids and Lubricants . If the vehicle has DOT 4 b ...

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 ...

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 ...