2007 Dodge Nitro Owner's Manual - Page 261

STARTING AND OPERATING 261 Proper operation of 4 wheel drive vehicles depends on tires of equal size, type and circumference on each wheel. Any difference in tire size can cause damage to the transfer case. Since 4 wheel drive provides improved traction, there is a tendency to exceed safe turning and stopping speeds. Do not go faster than road conditions permit. Shifting Procedure - Electronically Shifted Transfer Case NOTE: If any of the requirements to select a new transfer case position have not been met, the transfer case will not shift. The "4WD" Indicator Light (located in the display under the tachometer) will flash until all the requirements for the selected position have been met. To retry a shift: 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. 2WD⇔ 4WD LOCK Rotate the 4WD Control Switch to the desired position. Shifts between 2WD and 4WD LOCK 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/4WD LOCK if the front and/or rear wheels are spinning (no traction). In this situation, the "4WD" Indicator Light (located in the display under the tachometer) will flash. At this time, reduce speed and stop spinning the wheels to complete the shift. 5