2007 Jeep Liberty Owner's Manual - Page 234

234 STARTING AND OPERATING completing the shift. If difficulty occurs, shift transmission to N (Neutral), hold foot on brake, and turn engine OFF. Make shift to desired mode. NOTE: Shifting into or out of 4LO is possible with the vehicle completely stopped, however difficulty may occur due to the mating clutch teeth not being properly aligned. Several attempts may be required for clutch teeth alignment and shift completion to occur. The preferred method is with the vehicle rolling 2 to 3 mph (3 to 5 km/h). Avoid attempting to engage or disengage 4LO with the vehicle moving faster than 2 to 3 mph (3 to 5 km/h). TRAC-LOK™ REAR AXLE - IF EQUIPPED The optional Trac-Lok™ rear axle provides a constant driving force to both rear wheels and reduces wheel spin caused by the loss of traction at one driving wheel. If traction differs between the two rear wheels, the differential automatically proportions the usable torque by providing more torque to the wheel that has traction. Trac-Lok™ is especially helpful during slippery driving conditions. With both rear wheels on a slippery surface, a slight application of the accelerator will supply maximum traction. When starting with only one rear wheel on an excessively slippery surface, slight application of the parking brake may be necessary to gain maximum traction.