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: Exhaust Fluid Quality Poor

Use only exhaust fluid that is GM approved, or fluid containing the API certified or ISO 22241 label. All DEF has an expiration date. If the system detects poor quality, or contaminated or diluted DEF, the DIC message EXHAUST FLUID QUALITY POOR - SEE OWNERS MANUAL NOW – 160 KM (99 MI) UNTIL 104 KM/H (65 MPH) MAX SPEED displays...

GMC Terrain 2018-2025 Owners Manual: Cold Weather Operation (Diesel)