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.

    See also:

    2010 GMC Terrain Review by G. Chambers Williams III
    Consumers can't seem to get enough of the all-new GMC Terrain compact crossover and its Chevrolet sibling, the Equinox. These fuel-efficient family vehicles are selling so well that the plant in ...

    Tachometer
    The tachometer displays the engine speed in revolutions per minute (rpm). For a description of how Grade Braking affects vehicle speed while the Tow/Haul Mode is activated, see Tow/Haul Mode on page 9 ...

    Manual Operation
    The air delivery mode or fan speed can be manually adjusted. (Fan Control): Press to increase or decrease the fan speed. Pressing or while in automatic control places the fan speed under manual ...