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
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    If your vehicle has to be stopped in an emergency
    Only in an emergency, such as if it becomes impossible to stop the vehicle in the normal way, stop the vehicle using the following procedure: Steadily step on the brake pedal with both feet and ...

    Front seat
    Manual adjustment Forward and rearward To move the seat forward or rearward: 1. Pull the seat slide adjustment lever up and hold it. 2. Slide the seat to the position you desire. 3. Release the ...

    Different Size Tires and Wheels
    If wheels or tires are installed that are a different size than the original equipment wheels and tires, vehicle performance, including its braking, ride and handling characteristics, stabil ...