Buick LaCrosse: All-Wheel Drive - Drive Systems - Driving and Operating - Buick LaCrosse Owners ManualBuick LaCrosse: All-Wheel Drive

Vehicles with this feature always send engine power to all four wheels. It is fully automatic, and adjusts itself as needed for road conditions.

When using a compact spare tire on an AWD vehicle, the system automatically detects the compact spare and disables AWD. To restore AWD operation and prevent excessive wear on the system, replace the compact spare with a full-size tire as soon as possible.

See Compact Spare Tire for more information.

    Brakes
    ...

    See also:

    Automatic light off system (if equipped)
    Vehicles without a smart key system ●When the light switch is in : The headlights and tail lights turn off 30 seconds after the engine switch is turned to the “ACC” or “LOCK” pos ...

    Auto
    The function automatically regulates cooling, heating, blower speed, recirculation, and air distribution to maintain the chosen temperature. If you select one or more manual functions, the other ...

    Switching the windshield wipers on/ off
    WARNING Wiper blades are components that are subject to wear and tear. Replace the wiper blades twice a year, preferably in the spring and fall. Otherwise the windows will not be wiped prope ...