2004 Jeep Grand Cherokee Owner's Manual - Page 190

190 STARTING AND OPERATING induce a torque interrupt and allow full engagement of the newly selected position. With the vehicle stationary, it may be necessary to shift from D (Drive) to R (Reverse) and back to D (Drive) after shifting. This will allow full engagement of the newly selected position. Apply a constant force when shifting the transfer case lever. 4 PART TIME to 4 FULL TIME or 4 FULL TIME to 4 PART TIME Shifting between 4 PART TIME and 4 FULL TIME can be made with the vehicle stopped or in motion. If the vehicle is in motion, shifts can be made up to 55 mph (88 km/h). With the vehicle in motion, two momentary releases of the accelerator pedal may be required after shifting. This will induce a torque interrupt and allow full engagement of the newly selected position. With the vehicle stationary, it may be necessary to shift from D (Drive) to R (Reverse) and back to D (Drive) after shifting. This will allow full engagement of the newly selected position. Apply a constant force when shifting the transfer case lever. 4 FULL TIME to 4 LO or 4 LO to 4 FULL TIME With the vehicle rolling at 2 to 3 mph (3 to 5 km/h), shift the transmission into N (Neutral). While the vehicle is coasting at 2 to 3 mph (3 to 5 km/h), shift the transfer case lever firmly to the desired position. Do not pause in transfer case N (Neutral). NOTE: Pausing in transfer case N (Neutral) in vehicles equipped with an automatic transmission may require shutting the engine OFF to avoid gear clash while completing the shift. If difficulty occurs, shift the transmission to N (Neutral), hold foot on brake, and turn the 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