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  for more information.

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    Shifting Into Park (P)
    CAUTION: It can be dangerous to get out of your vehicle if the shift lever is not fully in PARK (P) with the parking brake firmly set. Your vehicle can roll. If you have left the engine runni ...

    Outside Air Temperature Display
    A new outside temperature reading will be displayed if the vehicle has been off for more than three hours. If the vehicle has been off for less than three hours, the old temperature reading may be ...

    PhatNoise a segment first
    Also available is the first-in-segment Mobile Digital Media Powered by PhatNoise system. PhatNoise is a wallet-sized, 40-gigabyte hard drive that installs in the Terraza's overhead rail system. Th ...