2015 Buick LaCrosse Owner Manual - Page 226

Driving and Operating SET- (Set/Coast): Press the control down briefly to set the speed and activate cruise control. If cruise control is already active, use to decrease vehicle speed. To set ACC: 1. Press 9-41 ]. 2. Get up to the desired speed. 3. Press and release the SET- control on the steering wheel. 4. Remove foot from the accelerator. After ACC is set, it may immediately apply the brakes if a vehicle ahead is detected closer than the selected following gap. Be mindful of speed limits, surrounding traffic speeds, and weather conditions when selecting the set speed. Resuming a Set Speed If the ACC is set at a desired speed and then the brakes are applied, ACC is disengaged without erasing the set speed from memory. To begin using ACC again, press RES+ up briefly on the steering wheel. The vehicle returns to the previously set speed. Increasing Speed While ACC is at a Set Speed If ACC is already activated, do one of the following: . * (Cancel): Press to disengage ACC without erasing the selected set speed. 3 (Follow Distance Gap): Press to select a following gap time (or distance) setting for ACC of Far, Medium, or Near. Setting Adaptive Cruise Control If the cruise button is on when not in use, it could get pressed and go into cruise when not desired. Keep the cruise control button off when cruise is not being used. Select the set speed desired for cruise. This is the vehicle speed when no vehicle is detected in its path. ACC will not set at a speed less than 25 km/h (16 mph), although it can be resumed when driving at lower speeds. The ACC indicator displays on the instrument cluster and Head-Up Display (HUD). When ACC is active, the indicator will be lit green. Use the accelerator to get to the higher speed. Press SET- down. Release the control and the accelerator pedal. The vehicle will now cruise at the higher speed.