GMC Terrain: Keys, Doors, and Windows / Windows
Warning
Never leave a child, a helpless adult, or a pet alone in a vehicle, especially with the windows closed in warm or hot weather. They can be overcome by the extreme heat and suffer permanent injuries or even death from heat stroke.
The vehicle aerodynamics are designed to improve fuel economy performance. This may result in a pulsing sound when either rear window is down and the front windows are up. To reduce the sound, open either a front window or the sunroof, if equipped.
Interior Mirrors
Interior Rearview Mirrors
Adjust the rearview mirror for a clear
view of the area behind the vehicle.
Do not spray glass cleaner directly
on the mirror...
Power Windows
Warning
Children could be seriously
injured or killed if caught in the
path of a closing window. Never
leave the Remote Keyless Entry
(RKE) transmitter in a vehicle with
children...
Other information:
GMC Terrain 2018-2026 Owners Manual: Driving for Better Fuel Economy
Driving habits can affect fuel mileage. Here are some driving tips to get the best fuel economy possible: Set the climate controls to the desired temperature after the engine is started, or turn them off when not required. Avoid fast starts and accelerate smoothly...
GMC Terrain 2018-2026 Owners Manual: 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. It also includes information on settings. Steering Wheel Controls The infotainment system can be operated by using the steering wheel controls...
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Vehicle Messages
Messages displayed on the DIC indicate the status of the vehicle or some action that may be needed to correct a condition. Multiple messages may appear one after another.
The messages that do not require immediate action can be acknowledged and cleared by pressing V. The messages that require immediate action cannot be cleared until that action is performed.
