Unable to Connect to OnStar Message

If there is limited cellular coverage or the cellular network has reached maximum capacity, this message may come on. Push call again or try again after driving a to try the call again or try again after driving a few miles into another cellular area.

    See also:

    Hands-Free Calling
    1. Push . System responds: “OnStar ready.”. 2. Say “Dial.” System responds: “Please say the name or number to call.”. 3. Say the entire number without pausing, including a “1” ...

    Online Owner Center
    Buick Owner Center (U.S.) www.buickownercenter.com Information and services customized for your specific vehicle — all in one convenient place. ► Digital owner manual, warranty information, ...

    Washing the Vehicle
    To preserve the vehicle's finish, keep it clean by washing it often. Do not wash the vehicle in direct sunlight and use a car washing soap. Notice: Do not use cleaning agents that are petroleum base ...