All-wheel drive

All-wheel drive is standard with the twin-turbo 3.5-liter V6. In good weather over smooth roads at modest speeds - when AWD is not needed - the system intelligently routes power only to the front wheels, improving fuel efficiency.
When driver input or road conditions indicate that slip might occur, the system sends power rearward to help prevent tire slip from happening in the first place (such as on rain-slicked or snow-covered roads).
A myriad of inputs enables the computer-controlled system to identify and immediately react - in as little as 16 milliseconds - to changing road conditions and driver demands. The amount of torque sent to the rear axle varies depending on road conditions and dynamic needs.
See also:
Blank Screen
The message center display will be blank after cycling through all of the
Info menu items. ...
Brakes
Occasional brake noise is normal. If a metal-to-metal, continuous grinding
or continuous squeal sound is present, the brake linings may be worn-out
and should be inspected by an authorized deale ...
Tires
Tires are designed to give many thousands of miles of service, but they
must be maintained in order to get the maximum benefit from them. ...
