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.

    See also:

    Power Lumbar
    Power Lumbar To adjust the power lumbar support, if equipped: • On vehicles with two-way lumbar, press and hold the top or bottom of the control to increase or decrease lumbar support. • On v ...

    Engine Oil Pressure Light
    WARNING Do not keep driving if the oil pressure is low. The engine can become so hot that it catches fire. Someone could be burned. Check the oil as soon as possible and have the vehicle serviced. ...

    Vehicle Reminder Messages
    ICE POSSIBLE DRIVE WITH CARE This message is displayed when ice conditions are possible. TURN WIPER CONTROL TO INTERMITTENT FIRST This message is displayed when attempting to adjust the intermitten ...