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 2018-2021 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 2018-2021 Owners Manual: Electric Parking Brake
The vehicle has an Electric Parking Brake (EPB). The EPB can always be activated, even if the ignition is off. To prevent draining the battery, avoid repeated cycles of the EPB system when the engine is not running. The system has a or PARK Electric Parking Brake light, and a Service Parking Brake light or Service Parking Brake message...
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