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: Info Pages
The following is the list of all possible DIC info page displays. Some may not be available for your particular vehicle. Some items may not be turned on by default but can be turned on through the Options app. See “ Info Page Options” earlier in this section. Speed : Shows the vehicle speed in either kilometers per hour (km/h) or miles per hour (mph). If equipped, press to open the ..
GMC Terrain 2018-2026 Owners Manual: Service Exhaust Fluid System
If a problem occurs with the DEF system, the DIC message SERVICE EXHAUST FLUID SYSTEM - SEE OWNERS MANUAL NOW – 160 KM (99 MI) UNTIL 104 KM/H (65 MPH) MAX SPEED displays. The displayed mileage will decrease as driving continues. A warning light also comes on. In some cases this message will clear itself, indicating that the DEF system was able to correct the condition. If the DIC mes..
