GMC Terrain: OnStar® - Performance and Maintenance - In Brief - GMC Terrain Owner's ManualGMC Terrain: 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 on page 14‑1 for more information.

    Roadside Assistance Program
    As the owner of a new GMC, you are automatically enrolled in the Roadside Assistance program. See Roadside Assistance Program (U.S. and Canada) on page 13‑7 or Roadside Assistance Program (M ...

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    Using the A/C
    Air conditioning places an extra load on the engine. Watch the engine coolant temperature gauge. If it moves near the red zone, turn off the A/C until the gauge reading returns to normal. 1. ...

    Important safety notes
    The HomeLink® garage door opener integrated in the rear-view mirror allows you to operate up to three different door and gate systems. Certain garage door drives are incompatible with the integ ...

    Rain Sensing Wipers — If Equipped
    This feature senses moisture on the windshield and automatically activates the wipers for the driver. This feature is especially useful for road splash or overspray from the windshield washers o ...