GMC Terrain: Connected Services

OnStar Additional Information

In-Vehicle Audio Messages Audio messages may play important information at the following times: Prior to vehicle purchase. Press to set up an account...

Navigation

Navigation requires a specific OnStar or connected service plan. Press to receive Turn-by-Turn directions or have them sent to the vehicle’s navigation screen, if equipped...

Other information:

GMC Terrain 2018-2025 Owners Manual: Power Mirrors

To adjust the mirrors: Press or to choose the driver or passenger mirror. Press the arrows on the control pad to move each mirror in the desired direction. ..

GMC Terrain 2018-2025 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..