2004 Dodge Ram 3500 Pickup Owner's Manual - Page 226

226 STARTING AND OPERATING return the control knob back to the original position, make certain all shift requirements have been met, wait five (5) seconds and try the shift again. NOTE: If all the requirements to select a new transfer case position have been met, the current position indicator light will turn OFF, the selected position indicator light will flash until the transfer case completes the shift. When the shift is complete, the indicator light for the selected position will stop flashing and remain ON. 2WD/AWD ⇔ 4HI Rotate the 4WD Control Switch to the desired position. Shifts between 2WD/AWD and 4HI can be done with the vehicle stopped or in motion. With the vehicle in motion, the transfer case will engage / disengage faster if you momentarily release the accelerator pedal after turning the control switch. If the vehicle is stopped, the ignition key must be in the ON position with the engine either RUNNING or OFF. This shift cannot be completed if the key is in the accessory position. NOTE: The 4x4 system will not allow shifts between (2WD/AWD)/4HI if the front and/or rear wheels are spinning (no traction). In this situation the selected position indicator light will flash and the original position indicator light will remain ON. At this time, reduce speed and stop spinning the wheels to complete the shift. 2WD/AWD or 4HI ⇔ 4LO NOTE: When shifting into or out of 4LO some gear noise may be heard. This noise is normal and is not detrimental to the vehicle or occupants. Shifting can be performed with the vehicle rolling 2 to 3 mph (3 to 5 km/h) or completely stopped. USE EITHER OF THE FOLLOWING PROCEDURES: