GMC Terrain: Fuel / Fuel Additives

Fuels in Foreign Countries

The U.S., Canada, and Mexico post fuel octane ratings in anti-knock index (AKI). For fuel not to use in a foreign country, see Prohibited Fuels (Gasoline)...

Gasoline

TOP TIER Detergent Gasoline is highly recommended for use with your vehicle. If your country does not have TOP TIER Detergent Gasoline, add ACDelco Fuel System Treatment Plus−Gasoline to the vehicle’s gasoline fuel tank at every oil change or 15,000 km (9,000 mi), whichever occurs first...

Other information:

GMC Terrain 2018-2025 Owners Manual: Driver Information Center (DIC)

The DIC display is in the instrument cluster. It shows the status of many vehicle systems. or : Press to move up or down in a list. or : Press to move between the interactive display zones in the cluster. : Press to open a menu or select a menu item...

GMC Terrain 2018-2025 Owners Manual: (TCS) / (ESC). Turning the Systems Off and On (Uplevel Cluster)

Caution Do not repeatedly brake or accelerate heavily when TCS is off. The vehicle driveline could be damaged. At speeds of 56 km/h (35 mph) or above, this ability to turn off or on is disabled. TCS and StabiliTrak/ESC can be turned off or on using the DIC controls as follows: Press or to scroll to the Options application...