Cellular and GPS Antennas

Avoid placing items over or near the antenna to prevent blocking cellular and GPS signal reception. Cellular reception is required for OnStar to send remote signals to the vehicle.

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    Overview
    Buick has rekindled a name from its storied 20th-century past to mark the beginning of a new level of refinement: Super. The badge is designated exclusively for Buick's most premium, powerful mode ...

    When the Light Flashes First and Then Is On Steady
    If the light flashes for about a minute and then stays on, there may be a problem with the TPMS. If the problem is not corrected, the light will come on at every ignition cycle. See Tire Pres ...

    Fuel Gauge
    When the ignition is on, the fuel gauge shows about how much fuel is left in the tank. An arrow on the fuel gauge indicates the side of the vehicle the fuel door is on. The FUEL LEVEL LOW message ...