All-wheel drive uses all four wheels to power the vehicle. This increases traction, enabling you to drive over terrain and road conditions that a conventional two-wheel drive vehicle cannot. The AWD system turns on when needed and does not require input from you.
Rear Differential Lock
This feature provides additional traction on loose or steep terrain, or should your vehicle become stuck. You can activate and deactivate the rear electronic locking differential feature while moving within the operating speed range by pressing the button on the drive mode control. The feature disengages when the vehicle speed exceeds a set value and it re-engages when the vehicle speed goes below a set value. It also engages based on certain selected drive modes.  See   Selecting a Drive Mode. 
The rear electronic locking differential is for use in mud, rocks, sand or off-road conditions where you need maximum traction. It is not for use on dry pavement.
Note:   This feature is for off-road use only and is not for use on dry pavement. Using the rear electronic locking differential feature on dry pavement can produce excessive noise, and increase tire and vehicle wear. Operating your vehicle in these conditions could subject your vehicle to excessive stress, which may result in damage not covered under your warranty.
You can activate the rear electronic locking differential by pressing the switch on the center switch pack.
Rear Differential Lock  The rear electronic locking differential indicator illuminates in the instrument cluster display when in use. When the rear electronic locking differential is in standby mode, the indicator is gray. When it is active, the indicator changes color.