2015 Buick LaCrosse Owner Manual - Page 224

Driving and Operating The speedometer reading can be displayed in either English or metric units. See Instrument Cluster on page 5-8. The increment value used depends on the units displayed. Passing Another Vehicle While Using Cruise Control Use the accelerator pedal to increase the vehicle speed. When you take your foot off the pedal, the vehicle will slow down to the previously set cruise speed. While pressing the accelerator pedal or shortly following the release to override cruise control, briefly pressing SET− will result in cruise set to the current vehicle speed. Using Cruise Control on Hills How well the cruise control will work on hills depends upon the vehicle speed, load, and the steepness of the hills. When going up steep hills, you might have to step on the accelerator pedal to maintain your speed. When going downhill, you might have to brake or shift to a lower gear to keep your speed down. If the brake pedal is applied, cruise control will disengage. Ending Cruise Control There are four ways to end cruise control: ... 9-39 Step lightly on the brake pedal. Press *. The following gap is the following time between your vehicle and a vehicle detected directly ahead in your path, moving in the same direction. If no vehicle is detected in your path, ACC works like regular cruise control. ACC uses a radar sensor. See Radio Frequency Statement on page 13-12. If a vehicle is detected in your path, ACC can apply acceleration or limited, moderate braking to maintain the selected following gap. To disengage ACC, apply the brake. If ACC is controlling your vehicle speed when the traction control system (TCS) or electronic stability control system activates, the ACC may automatically disengage. See Traction Control/Electronic Stability Control on page 9-34. When road conditions allow ACC to be safely used, the ACC can be turned back on. ACC will not engage if the TCS or electronic stability control system is disabled. Shift the transmission to N (Neutral). To turn off cruise control, press 5. . Erasing Speed Memory The cruise control set speed is erased from memory if 5 is pressed or the ignition is turned off. Adaptive Cruise Control If equipped with Adaptive Cruise Control (ACC), it allows the driver to select the cruise control set speed and following gap. Read this entire section before using this system.