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 2018-2026 Owners Manual: Electrical System Overload


    The vehicle has fuses and circuit breakers to protect against an electrical system overload. When the electrical load current is too heavy, the circuit breaker opens and closes, protecting the circuit until the current load returns to normal or the problem is fixed...

    GMC Terrain 2018-2026 Owners Manual: Customer Assistance Offices


    GMC encourages customers to call the toll-free number for assistance. However, if a customer wishes to write or e-mail GMC, the letter should be addressed to: United States and Puerto Rico GMC Customer Assistance Center P.O. Box 33172 Detroit, MI 48232-5172 www...

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