2012 Buick LaCrosse Owner's Manual - Page 30

1-24 In Brief AUTO STOP on the tachometer signifies that the engine is in auto stop mode. See Tachometer on page 5‑11 for more information. A chime will sound when the driver door is opened while in auto stop mode. Remember to shift to P (Park) and turn the ignition to LOCK/OFF before exiting the vehicle. See Starting the Engine on page 9‑20. The system works whenever the accelerator pedal is released, and increases the energy captured as more brake pedal is applied. Automatic Engine Start/ Stop Feature Vehicles with eAssist have an automatic engine start/stop feature. After the engine is started and has reached operating temperature, the auto stop feature may cause the engine to turn off when the brake pedal is applied and the vehicle comes to a complete stop. When the brake pedal is released, or the accelerator pedal is applied, the engine will restart. The engine will continue to run until the next auto stop. To restart the engine during the auto stop, release the brake pedal or press the accelerator pedal. The engine starts immediately. The vehicle continues to run until the next stop. Battery eAssist vehicles have a standard 12-volt battery and a high voltage battery. When a new standard 12-volt battery is needed, see your dealer for one that has the replacement number shown on the original battery's label. Only a trained service technician with the proper knowledge and tools should inspect, test, or replace the high voltage battery. See your dealer if the high voltage battery needs service. See Battery on page 10‑25. Regenerative Braking Regenerative braking takes some of the energy from the moving vehicle and turns it into electrical energy. This energy is then stored in the vehicle's high voltage battery system, contributing to increased fuel efficiency.