All Wheel Drive

All Wheel Drive  - Starting and driving - Volvo XC90 Owners Manual - Volvo XC90

All Wheel Drive (AWD) – general information

Your Volvo can be equipped with an electronically controlled All Wheel Drive system, which means that power is distributed automatically between the front and rear wheels. Under normal driving conditions, most of the engine's power is directed to the front wheels. However, if there is any tendency for the front wheels to spin, an electronically controlled coupling distributes power to the wheels that have the best traction.

Tire dimensions

Volvo recommends that you always drive on tires of the same brand, size, construction (radial), tread pattern, load-, speed-, traction-, temperature-, and treadwear rating. Never drive on mixed tires, except for brief periods when the temporary spare tire is in use.

Always use properly inflated tires of correct dimensions. Tire size and inflation pressures are shown on the tire inflation pressure placards, located on the driver's side B-pillar (the structural member at the side of the vehicle, at the rear of the driver's door opening), or on the inside of the fuel filler door on Canadian models.

Temporary Spare

The temporary spare tire is for temporary, lowspeed, short-distance use only. Replace it with a full-sized tire as soon as possible. Do not drive on the temporary spare at speeds above 50 m.p.h. (80 km/h).

NOTE
Never install snow chains on a temporary spare.

    See also:

    Interior lighting, rear
    Rear reading lights The lights are switched on or off by pressing each respective button. Courtesy lights/door step lighting* The courtesy lights/door step lighting switch on/off automatically wh ...

    Sensors
    The sunlight sensor on the dashboard and passenger compartment temperature sensor in the ECC control panel should not be covered in any way as this could cause incorrect information to be sent to ...

    Dimensions
    ...