In part-time mode, the 4WD system only sends power to the front wheels, which means that the rear wheels are not engaged.
This setting is typically used for driving in slippery conditions, such as snow or mud, as it helps to improve traction and stability.
However, it's important to note that part-time 4WD should not be used on dry pavement, as it can cause damage to the drivetrain.
If the "Part Time" warning light is illuminated on your Jeep Liberty, it means that the 4WD system is engaged and you should be driving in slippery conditions.
If the light is illuminated on dry pavement, you should disengage the 4WD system by shifting the transfer case into two-wheel drive (2WD) mode.