OnStar®

If equipped, this vehicle has a comprehensive, in-vehicle system that can connect to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic Services. See OnStar Overview on page 14‑1 for more information.

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    Power Outlets
    Accessory power outlets can be used to plug in electrical equipment, such as a cell phone, MP3 player, etc. The vehicle may have two accessory power outlets located below the climate control system, ...

    All Terrain chassis and suspension
    Based on the chassis of the 2011 Sierra HD trucks, the All Terrain HD features a fully boxed steel frame with exceptional strength and torsional stiffness. It incorporates the production models' n ...

    Safety Belt Reminders
    Driver Safety Belt Reminder Light There is a driver safety belt reminder light on the instrument panel cluster. When the vehicle is started, this light flashes and a chime may come on to remind th ...