Recommended Fuel

Use regular unleaded gasoline with a posted octane rating of 87 or higher. If the octane rating is less than 87, an audible knocking noise, commonly referred to as spark knock, might be heard when driving. If this occurs, use a gasoline rated at 87 octane or higher as soon as possible. If heavy knocking is heard when using gasoline rated at 87 octane or higher, the engine needs service.

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    Pairing Information
    • A Bluetooth phone with MP3 capability cannot be paired to the vehicle as a phone and an MP3 player at the same time. • Up to five cell phones can be paired to the Bluetooth system. • The pai ...

    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 ...

    Driver Information Center (DIC)
    The vehicle may have a Driver Information Center (DIC). It displays information about the vehicle and warning messages if there is a system problem detected. DIC messages display in the center of ...