Horn

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

    See also:

    Battery Voltage and Charging Messages
    BATTERY LOW START VEHICLE When the vehicle’s battery is severely discharged, this message will display and four chimes will sound. Start the vehicle immediately. If the vehicle is not started and t ...

    When to Check
    Check the tires once a month or more. Do not forget the spare tire, if the vehicle has one. SeeFull-Size Spare Tire on page 10‑91 for additional information. ...

    Comprehensive safety system
    The GMC Acadia has a comprehensive safety system that is designed to protect passengers before, during and after a crash. Its strong structure and four-wheel independent suspension system enhance ...