Retained Accessory Power (RAP)

Your vehicle has a Retained Accessory Power (RAP) feature which lets certain features of your vehicle to continue to work up to 20 minutes after the ignition key is turned to LOCK.

The radio, power windows, the overhead console and the sunroof, if the vehicle has one, work when the ignition key is in RUN or ACCESSORY.

Once the key is turned from RUN to LOCK, these features continue to work for up to 20 minutes, or until a door is opened.

    See also:

    Units
    Press the customization button until UNITS: U.S. (ENGLISH) appears in the display. To select English or metric, press the select button while UNITS: U.S. (ENGLISH) is displayed on the DIC. Pre ...

    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 ...

    Your Responsibility
    Increase the volume of the radio if the OnStar advisor cannot be heard. If the light next to the OnStar buttons is red, the system may not be functioning properly. Press and request a vehicle ...