GMC Terrain: Exterior Mirrors / Power Mirrors

Convex Mirrors

Warning A convex mirror can make things, like other vehicles, look farther away than they really are. If you cut too sharply into the right lane, you could hit a vehicle on the right...

Folding Mirrors and Heated Mirrors

Folding Mirrors Manual Folding Mirrors The mirrors can be folded inward toward the vehicle to prevent damage when going through an automatic car wash...

Other information:

GMC Terrain 2018-2025 Owners Manual: Rear Cross Traffic Alert (RCTA)

If equipped, when the vehicle is shifted into R (Reverse), RCTA displays a red warning triangle with a left or right pointing arrow to warn of traffic coming from the left or right. This system detects objects coming from up to 20m (65 ft) from the left or right side of the vehicle...

GMC Terrain 2018-2025 Owners Manual: Approaching and Following a Vehicle

The vehicle ahead indicator is in the instrument cluster. It only displays when a vehicle is detected in your vehicle’s path moving in the same direction. If this symbol is not displaying, ACC will not respond to or brake for vehicles ahead. ACC automatically slows the vehicle down and adjusts vehicle speed to follow a detected vehicle ahead at the selected following gap...