Horn

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

    See also:

    Ending a Call
    Press to end a call. ...

    Windshield Wiper/Washer
    The windshield wiper/washer lever is located on the left side of the steering column. Turn the band with the wiper symbol to control the windshield wipers. (Mist): Use for a single wiping cycle. ...

    The Elephant
    GMC has long combined ruggedness and elegance to good effect — consider the Sierra pickup and Acadia crossover, for example. But the Terrain is one odd duck. GM says it shares just a few body pa ...