GMC Terrain: Vehicle Care / Vehicle Checks

General Information

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Doing Your Own Service Work

Warning It can be dangerous to work on your vehicle if you do not have the proper knowledge, service manual, tools, or parts. Always follow owner’s manual procedures and consult the service manual for your vehicle before doing any service work...

Other information:

GMC Terrain 2018-2026 Owners Manual: Hill Descent Control (HDC)


HDC can be used when driving downhill. It sets and maintains vehicle speed while descending a very steep incline in a forward or reverse gear. The HDC switch is on the center console. Press to enable or disable HDC. Vehicle speed must be below 50 km/h (31 mph)...

GMC Terrain 2018-2026 Owners Manual: Filling the Tank (Diesel)


Warning Fuel vapors and fuel fires burn violently and can cause injury or death. To help avoid injuries to you and others, read and follow all the instructions on the fuel pump island. Turn off the engine when refueling. Keep sparks, flames, and smoking materials away from fuel...

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