Vehicle and Power Issues

OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not operate if the battery is discharged or disconnected.

    See also:

    Highway Hypnosis
    Always be alert and pay attention to your surroundings while driving. If you become tired or sleepy, find a safe place to park the vehicle and rest. Other driving tips include: Keep the vehicle ...

    Setting the Tone (Bass/Midrange/Treble)
    AUDIO: Push and release the AUDIO knob until BASS, MID (midrange) (without Bose®), or TREB (treble) displays. Turn the knob to increase or to decrease the tone. The display shows the bass, midran ...

    Increasing Speed While Using Cruise Control
    To increase the cruise speed while using cruise control: • Press and hold the +RES button on the steering wheel until the desired speed is reached, then release it. • To increase vehicle spe ...