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 2018-2025 Owners Manual: If the Off Indicator Is Lit for an Adult-Sized Occupant


    If a person of adult size is sitting in the front outboard passenger seat, but the OFF indicator is lit, it could be because that person is not sitting properly in the seat or that the child restraint locking feature is engaged. Use the following steps to allow the system to detect that person and enable the front outboard passenger frontal airbag: Turn the vehicle off...

    GMC Terrain 2018-2025 Owners Manual: Tire Sidewall Labeling


    Useful information about a tire is molded into its sidewall. The examples show a typical passenger vehicle tire and a compact spare tire sidewall. Passenger (P-Metric) Tire Example Tire Size : The tire size is a combination of letters and numbers used to define a particular tire's width, height, aspect ratio, construction type, and service description...

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