GMC Terrain: Vehicle Checks / All-Wheel Drive

Transfer Case

Under normal driving conditions, transfer case fluid does not require maintenance unless there is a fluid leak or unusual noise. If required, have the transfer case serviced by your dealer.

    Battery - North America

    The original equipment battery is maintenance free. Do not remove the cap and do not add fluid. Refer to the replacement number shown on the original battery label when a new battery is needed...

    Starter Switch Check

    Warning When you are doing this inspection, the vehicle could move suddenly. If the vehicle moves, you or others could be injured. Before starting this check, be sure there is enough room around the vehicle...

    Other information:

    GMC Terrain 2018-2023 Owners Manual: How to Add Coolant to the Coolant Surge Tank


    Warning Steam and scalding liquids from a hot cooling system are under pressure. Turning the pressure cap, even a little, can cause them to come out at high speed and you could be burned. Never turn the cap when the cooling system, including the pressure cap, is hot...

    GMC Terrain 2018-2023 Owners Manual: 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...

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