GMC Terrain: Vehicle Checks / 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.
- Apply both the parking brake and the regular brake. Do not use the accelerator pedal, and be ready to turn off the engine immediately if it starts.
- Try to start the engine in each gear. The vehicle should start only in P (Park) or N (Neutral).
If the vehicle starts in any other position, contact your dealer for service.
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...
Park Brake and P (Park) Mechanism Check
Warning
When you are doing this check,
the vehicle could begin to move.
You or others could be injured
and property could be damaged.
Make sure there is room in front
of the vehicle in case it begins to
roll...
Other information:
GMC Terrain 2018-2023 Owners Manual: Weather Conditions Affecting ACC
If the interior temperature is extremely high, the instrument cluster may indicate that ACC is temporarily unavailable. This can be caused by extreme hot weather conditions with direct sunlight on the front camera. ACC will return to normal operation once the cabin temperature is lower...
GMC Terrain 2018-2023 Owners Manual: Engine Overheating
The vehicle has an engine coolant temperature gauge on the instrument cluster and overheat messages in the Driver Information Center (DIC) to warn of engine overheating. See Engine Coolant Temperature Gauge. The decision may be made not to lift the hood when the engine coolant temperature gauge is in the overheat zone or an engine overheat DIC message displays, but instead to get servic..
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