GMC Terrain: Setting Adaptive Cruise Control / Stationary or Very Slow-Moving Objects

GMC Terrain 2018-2026 Owners Manual / Driving and Operating / Cruise Control / Setting Adaptive Cruise Control / Stationary or Very Slow-Moving Objects

Warning

ACC may not detect and react to stopped or slow-moving vehicles ahead of you. For example, the system may not brake for a vehicle it has never detected moving. This can occur in stop-and-go traffic or when a vehicle suddenly appears due to a vehicle ahead changing lanes. Your vehicle may not stop and could cause a crash. Use caution when using ACC. Your complete attention is always required while driving and you should be ready to take action and apply the brakes.

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...

Irregular Objects Affecting ACC

ACC may have difficulty detecting the following objects: Vehicles in front of your vehicle that have a rear aspect that is low, small, or irregular An empty truck or trailer that has no cargo in the cargo bed Vehicles with cargo extending from the back end Non-standard shaped vehicles, such as vehicle transport, vehicles with a side car fitted, or horse carriages Vehicles that..

Other information:

GMC Terrain 2018-2026 Owners Manual: Cleaning the Sensing System

The camera sensor on the windshield behind the rearview mirror can become blocked by snow, ice, dirt, mud, or debris. This area needs to be cleaned for ACC to operate properly. The vehicle headlamps may need to be cleaned due to dirt, snow, or ice. Objects that are not illuminated correctly may be difficult to detect. If ACC will not operate, regular cruise control may be available. See ..

GMC Terrain 2018-2026 Owners Manual: Park Assist