GMC Terrain: Setting Adaptive Cruise Control / Approaching and Following a Vehicle

GMC Terrain. 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. The vehicle speed increases or decreases to follow a detected vehicle in front of your vehicle when that vehicle is traveling slower than your vehicle set speed. It may apply limited braking, if necessary. When braking is active, the brake lamps will come on. The automatic braking may feel or sound different than if the brakes were applied manually. This is normal.

    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...

    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...

    Other information:

    GMC Terrain 2018-2026 Owners Manual: Electrical System Overload


    The vehicle has fuses and circuit breakers to protect against an electrical system overload. When the electrical load current is too heavy, the circuit breaker opens and closes, protecting the circuit until the current load returns to normal or the problem is fixed...

    GMC Terrain 2018-2026 Owners Manual: Reading Lamps


    There are reading lamps on the overhead console and over the rear passenger doors. These lamps come on when any door is opened. Front Reading Lamps The front reading lamps are in the overhead console. Press the lamp lenses to turn the front reading lamps on or off...

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