2013 Jeep Grand Cherokee Owner's Manual - Page 456

454 STARTING AND OPERATING DRIVE This range should be used for most city and highway driving. It provides the smoothest upshifts and downshifts, and the best fuel economy. The transmission automatically upshifts through underdrive first, second, and third gears, direct fourth gear and overdrive fifth gear. The DRIVE position provides optimum driving characteristics under all normal operating conditions. Transmission Limp Home Mode Transmission function is monitored electronically for abnormal conditions. If a condition is detected that could result in transmission damage, Transmission Limp Home Mode is activated. In this mode, the transmission remains in direct gear regardless of which forward gear is selected. PARK, REVERSE, and NEUTRAL will continue to operate. The Malfunction Indicator Light (MIL) may be illuminated. Limp Home Mode allows the vehicle to be When frequent transmission shifting occurs (such as driven to an authorized dealer for service without damwhen operating the vehicle under heavy loading condiaging the transmission. tions, in hilly terrain, traveling into strong head winds, or while towing heavy trailers), use the AutoStick® shift In the event of a momentary problem, the transmission control (refer to "AutoStick®" in this section) to select a can be reset to regain all forward gears by performing the lower gear. Under these conditions, using a lower gear following steps: will improve performance and extend transmission life 1. Stop the vehicle. by reducing excessive shifting and heat buildup. 2. Shift the transmission into PARK. 3. Turn the ignition switch to the LOCK/OFF position.