GMC Terrain: Fuel Additives / Diesel

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...

Fuel for Diesel Engines

The selection of a high-quality fuel is important for maintaining optimum vehicle performance. Diesel fuel should meet or exceed the minimum requirements in the most current versions of the local fuel standards Do not use fuel with more than 15 ppm sulfur...

Other information:

GMC Terrain 2018-2026 Owners Manual: Replacing Airbag System Parts after a Crash

Warning A crash can damage the airbag systems in the vehicle. A damaged airbag system may not properly protect you and your passenger(s) in a crash, resulting in serious injury or even death. To help make sure the airbag systems are working properly after a crash, have them inspected and any necessary replacements made as soon as possible...

GMC Terrain 2018-2026 Owners Manual: Driver Behavior. Driving Environment

Driver Behavior Driving is an important responsibility. Driver behavior, the driving environment, and the vehicle's design all affect how well a vehicle performs. Being aware of these factors can help in understanding how the vehicle handles and what can be done to avoid many types of crashes, including a rollover crash...