G500 2003 transfer case not switching.
 

Differential lock os on .charged transfer case motor, modual, differential lock switch.still shown abs not active,lock active ,differential lock.
Help!!

Probably need a new transfer case motor--it is basically a windshield wiper motor on the back of the transfer case that toggles between high and low gearing. Not too expensive and super cheap to replace.

Does your dash show a blank box instead of the "h" or "L"? That is usually an indication

Put the G in reverse on a Slight down grade, while its moving in reverse, put it in neutral and while it's still rolling in reverse (in neutral), press n hold the L button on the center console by the shifter for a few secs and it should (semi-manually) switch to LOW. Then once it shows "L", then Immediately press the H and it should now switch to "H".

Happens once in a while in a long while on mine over the years.

I am so grateful to have a manual transfer case lever.