GMC Terrain: Driving and Operating / 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). A device connected to the DLC — such as an aftermarket fleet or driver-behavior tracking device — may interfere with vehicle systems. This could affect vehicle operation and cause a crash. Such devices may also access information stored in the vehicle’s systems.
Caution
Some electrical equipment can damage the vehicle or cause components to not work and would not be covered by the vehicle warranty. Always check with your dealer before adding electrical equipment.
Add-on equipment can drain the vehicle's 12-volt battery, even if the vehicle is not operating.
The vehicle has an airbag system. Before attempting to add anything electrical to the vehicle, see Servicing the Airbag-Equipped Vehicle and Adding Equipment to the Airbag-Equipped Vehicle.
Towing Equipment
Hitches
Always use the correct hitch
equipment for your vehicle.
Crosswinds, large trucks going by,
and rough roads can affect the
trailer and the hitch...
Vehicle Care
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Other information:
GMC Terrain 2018-2026 Owners Manual: Introduction
About Driving the Vehicle As with other vehicles of this type, failure to operate this vehicle correctly may result in loss of control or a crash. Be sure to read the driving guidelines in this manual in the section called “Driving and Operating” and specifically Driver Behavior, Driving Environment, and Vehicle Design. Danger, Warning, and Caution Warning messages found on vehicle l..
GMC Terrain 2018-2026 Owners Manual: Heated and Ventilated Seats
If equipped, the buttons are on the center console. To operate, the engine must be running. Press or , if equipped, to heat the driver or passenger seatback only. Press or to heat the driver or passenger cushion and seatback. Press or , if equipped, to ventilate the driver or passenger seat. A ventilated seat has a fan that pulls air through the cushion and seatback. The air is not ..
