GMC Terrain: Performance and Maintenance / Roadside Assistance Program

Diesel Exhaust Fluid

Diesel Exhaust Fluid (DEF) is used with diesel engines to reduce the amount of regulated emissions produced. The DEF system must be maintained for the vehicle to run properly...

Keys, Doors, and Windows

..

Other information:

GMC Terrain 2018-2022 Owners Manual: Universal Remote System Operation

Using the Universal Remote System Press and hold the appropriate Universal Remote system button for at least one-half second. The indicator light will come on while the signal is being transmitted. Erasing Universal Remote System Buttons Erase all programmed buttons when vehicle ownership is terminated. To erase: Press and hold the two outside buttons until the indicator light begins to..

GMC Terrain 2018-2022 Owners Manual: Security

If equipped, OnStar provides these services: With Stolen Vehicle Assistance, OnStar Advisors can use GPS to pinpoint the vehicle and help authorities quickly recover it. With Remote Ignition Block, if equipped, OnStar can block the engine from being restarted. With Stolen Vehicle Slowdown, if equipped, OnStar can work with law enforcement to gradually slow the vehicle down. T..