Horn

Press near or on the horn symbols on the steering wheel pad to sound the horn.

    See also:

    Tire Pressure Monitor
    This vehicle may have a Tire Pressure Monitor System (TPMS). The Tire Pressure Monitor alerts you when a significant reduction in pressure occurs in one or more of the vehicle’s tires ...

    End a Call
    Push . System responds: “Call ended.” ...

    How OnStar Service Works
    : This blue button connects you to a specially trained OnStar advisor to verify your account information and to answer questions. : Push this red emergency button to get priority help fro ...