GMC Terrain: In Brief / Vehicle Features

Transmission

Electronic Range Select (ERS) Mode ERS or manual mode allows for the selection of the range of gear positions. Use this mode when driving downhill to limit the top gear and vehicle speed...

Infotainment System and Cruise Control

Infotainment System See the infotainment manual for information on the radio, audio players, phone, navigation system, and voice or speech recognition...

Other information:

GMC Terrain 2018-2025 Owners Manual: Diesel

TOP TIER Detergent Diesel is highly recommended for use with your vehicle. If your area does not have TOP TIER Detergent Diesel, GM recommends the use of ACDelco Diesel Fuel Conditioner. This will help you maintain optimal engine performance. GM does not recommend other aftermarket diesel additives...

GMC Terrain 2018-2025 Owners Manual: Adaptive Cruise Control

If equipped, Adaptive Cruise Control (ACC) allows the cruise control set speed and following gap to be selected. Read this entire section before using this system. The following gap is the following time between your vehicle and a vehicle detected directly ahead in your path, moving in the same direction...