New for 2011

The Sierra Hybrid gets GM's OnStar 9.0 telematics system that GM says provides better voice recognition. GM also said they have worked to cut down on the amount of wind noise occupants hear.

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    Rear Seats
    The rear seat has adjustable headrests in the outboard seating positions. The height of the headrest can be adjusted. Pull the headrest up to raise it. To lower the headrest, push down on the headres ...

    Forward Collision Alert (FCA) System
    For vehicles with FCA, this system is intended to help avoid or reduce the harm caused by front-end crashes. FCA provides a flashing visual alert and beeps when approaching a vehicle directly ahea ...

    Folding the Seatback
    To fold the second row seatbacks: 1. Remove anything on or under the seat. 2. Place the armrest in the upright position, and unfasten the safety belt. 3. Pull forward on the reclining seatback stra ...