GMC Terrain: Vehicle Care

Conversions and Add-Ons

Add-On Electrical Equipment Warning The Data Link Connector (DLC) is used for vehicle service and Emission Inspection/Maintenance testing. See Malfunction Indicator Lamp (Check Engine Light)...

General Information

For service and parts needs, visit your dealer. You will receive genuine GM parts and GM-trained and supported service people. Genuine GM parts have one of these marks: California Proposition 65 Warning Warning Most motor vehicles, including this one, as well as many of its service parts and fluids, contain and/or emit chemicals known to the State of California to cause cancer and birth..

Other information:

GMC Terrain 2018-2025 Owners Manual: Traction Off Light


This light comes on briefly while starting the engine. If it does not, have the vehicle serviced by your dealer. If the system is working normally, the indicator light then turns off. The traction off light comes on when the Traction Control System (TCS) has been turned off through the Driver Information Center (DIC). This light and the StabiliTrak OFF light come on when StabiliTrak/ Ele..

GMC Terrain 2018-2025 Owners Manual: Front Turn Signal Lamps


To replace one of these bulbs: Open the hood. See Hood. Remove the bulb access cap from the top of the headlamp assembly by turning it counterclockwise. Remove the bulb from the bulb socket by pinching the tabs on either side of the bulb and pull straight out. Install the new bulb in the bulb socket. Install the bulb access cap onto the headlamp assembly by turning cloc..

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