Safety

All-disc antilock brakes and daytime running lights are standard, but side-impact airbags are not available.

    See also:

    Anti-theft Alarm System Messages
    THEFT ATTEMPTED This message displays if the vehicle detects a tamper condition. ...

    When to Check Power Steering Fluid
    It is not necessary to regularly check power steering fluid unless you suspect there is a leak in the system or you hear an unusual noise. A fluid loss in this system could indicate a problem. Have th ...

    Powertrain details
    The GMC Sierra All Terrain HD concept is propelled by the new, production 6.6L Duramax turbo-diesel V-8 and Allison 1000 six-speed automatic transmission powertrain combination offered in the 2011 ...