GMC Terrain: Connected Services / Diagnostics

By monitoring and reporting on the vehicle's key systems, OnStar Advanced Diagnostics, if equipped, provides a way to keep up on maintenance. Capabilities vary by model. See www.onstar.com for details and system limitations. Features are subject to change. For updates on feature capabilities, see my.gmc.com. Message and data rates may apply.

    Connections

    The following services help with staying connected. For coverage maps, see www.onstar.com (U.S.) or www.onstar.ca (Canada). Ensuring Security Change the default passwords for the Wi-Fi hotspot and myGMC mobile application...

    Other information:

    GMC Terrain 2018-2025 Owners Manual: Braking


    Braking action involves perception time and reaction time. Deciding to push the brake pedal is perception time. Actually doing it is reaction time. Average driver reaction time is about three-quarters of a second. In that time, a vehicle moving at 100 km/h (60 mph) travels 20m (66 ft), which could be a lot of distance in an emergency...

    GMC Terrain 2018-2025 Owners Manual: Passenger Airbag Status Indicator


    The vehicle has a passenger sensing system. See Passenger Sensing System for important safety information. The overhead console has a passenger airbag status indicator. When the vehicle is started, the passenger airbag status indicator will light ON and OFF for several seconds as a system check...

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