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

GMC Terrain 2018-2025 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 2018-2025 Owners Manual: Park Assist and Automatic Parking Assist (APA)

Park Assist If equipped, Rear Park Assist (RPA) uses sensors on the rear bumper to assist with parking and avoiding objects while in R (Reverse). It operates at speeds less than 8 km/h (5 mph). RPA may show a warning triangle on the infotainment display and a graphic on the instrument cluster to provide the object distance. In addition, multiple beeps or seat pulses may occur if very cl..

GMC Terrain 2018-2025 Owners Manual: General Information