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.

    See also:

    Checking the Fluid Level
    Prepare your vehicle as follows: 1. Park your vehicle on a level place. Keep the engine running. 2. With the parking brake applied, place the shift lever in PARK (P). 3. With your foot on the b ...

    Seating & Cargo
    The standard eight-way power driver's seat offers plenty of adjustment range, so spouses of wide-ranging sizes should have no trouble finding their fit. If you're much taller than 6 feet, avoid th ...

    Flash-to-Pass
    To flash the high beams, pull the turn signal/lane change lever all the way toward you. Then release it. ...