GMC Terrain: Setting Adaptive Cruise Control / Alerting the Driver

GMC Terrain 2018-2025 Owners Manual / Driving and Operating / Cruise Control / Setting Adaptive Cruise Control / Alerting the Driver

GMC Terrain. Alerting the Driver

If ACC is engaged, driver action may be required when ACC cannot apply sufficient braking because of approaching a vehicle too rapidly.

When this condition occurs, six red lights will flash on the windshield. Either eight beeps will sound from the front, or both sides of the Safety

Alert Seat will pulse five times. See “Collision/Detection Systems” under Vehicle Personalization.

See Defensive Driving.

Selecting the Follow Distance Gap

When a slower moving vehicle is detected ahead within the selected following gap, ACC will adjust the vehicle's speed and attempt to maintain the follow distance gap selected...

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...

Other information:

GMC Terrain 2018-2025 Owners Manual: Vehicle Ahead Indicator and Pedestrian Ahead Indicator

Vehicle Ahead Indicator If equipped, this indicator will display green when a vehicle is detected ahead. See Forward Collision Alert (FCA) System. Pedestrian Ahead Indicator If equipped, this indicator will display amber when a nearby pedestrian is detected directly in front of the vehicle...

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