I have a 2007 1500 Hemi. The 4wd does engage and work, but the indicator light flashes the whole time. I tried going right into 4 low first and the same thing happens. I also tried putting it in 4wd, taking it out, then driving in reverse. It still flashes when re-engaged. Last winter the light stayed steady on when 4wd was engaged.

 

Dave,

Do you have an electronically shifted transfer case? If the light is flashing it should mean the shift did not engage (disengage) properly.

Transfer Case Position Indicator Lights —
Electronically Shifted Transfer Case Only
Transfer case position indicator lights are located on the
instrument cluster and indicate the current and desired
transfer case selection. When you select a different transfer
case position, the indicator lights will do the following:
If All Shift Conditions are Met
1. The current position indicator light will turn OFF.
2. The selected position indicator light will flash until the
transfer case completes the shift.
3. When the shift is complete, the indicator light for the
selected position will stop flashing and remain ON.
If One or More Shift Conditions are not Met
1. The indicator light for the current position will remain
ON.
2. The newly selected position indicator light will continue
to flash.
3. The transfer case will not shift.
NOTE: Before retrying a selection, make certain that all
the necessary requirements for selecting a new transfer
case position have been met. To retry the selection, turn
the control **** back to the current position, wait five (5)
seconds, and retry selection. To find the shift requirements,
refer to the Shifting Procedure for your transfer
case, located in this section of the owner’s manual.

 

Read through this, should help you. https://dodgeforum.com/forum/3rd-gen...tor-light.html