GMC Terrain: Starting and Operating / Retained Accessory Power (RAP)

Some vehicle accessories may be used after the ignition is turned off. The power windows and sunroof, if equipped, will continue to work for up to 10 minutes or until any door is opened.

The infotainment system will continue to work for 10 minutes, until the driver door is opened, or until the ignition is turned on or placed in ACC/ACCESSORY.

    Engine Heater

    Warning Do not plug in the engine block heater while the vehicle is parked in a garage or under a carport. Property damage or personal injury may result...

    Shifting Into Park

    Warning It can be dangerous to get out of the vehicle if the vehicle is not in P (Park) with the parking brake set. The vehicle can roll. If you have left the engine running, the vehicle can move suddenly...

    Other information:

    GMC Terrain 2018-2026 Owners Manual: Seat Adjustment


    Warning You can lose control of the vehicle if you try to adjust a driver seat while the vehicle is moving. Adjust the driver seat only when the vehicle is not moving. To adjust the seat position: Pull the handle at the front of the seat cushion to unlock it...

    GMC Terrain 2018-2026 Owners Manual: Roadside Assistance Program


    For U.S.-purchased vehicles, call 1-888-881-3302; (Text Telephone (TTY): 1-888-889-2438). For Canadian-purchased vehicles, call 1-800-268-6800. Service is available 24 hours a day, 365 days a year. Calling for Assistance When calling Roadside Assistance, have the following information ready: Your name, home address, and home telephone number Telephone number of your location Location..

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