Horn

To sound the horn, press the center pad on the steering wheel.

    See also:

    Trailer Wiring Harness
    The vehicle is equipped with one of the following wiring harnesses for towing a trailer or hauling a slide-in camper. ...

    Speedometer
    The vehicle's speed can be selected to display on the Driver Information Center (DIC) and the speedometer in either kilometers per hour (km/h) or miles per hour (mph). Telltales on the speedom ...

    Using Voice Commands During a Planned Route
    Cancel Route 1. Push X. System responds: “OnStar ready,” then a tone. Say “Cancel route.” System responds: “Would you like to cancel route directions to your destination?” 2. Say “Ye ...