OnStar Services

See also:

Power Lumbar
Power Lumbar To adjust the power lumbar support, if equipped: • On vehicles with two-way lumbar, press and hold the top or bottom of the control to increase or decrease lumbar support. • On v ...

Setting the Tone (Bass/Treble) (AM-FM Radio and AM-FM Radio with CD)
To adjust the bass or treble: 1. Press the knob until Bass or Treble displays. 2. To adjust the setting, do one of the following: • Turn the knob. • Press either SEEK, or SEEK. • Press ...

Brake Adjustment
Every time the brakes are applied, with or without the vehicle moving, the brakes adjust for wear. ...