Steve2517

Thank you so much for this fix. I was gonna bring my truck to gmc over an hour away to have it re programed. Was also thinking transfer case was shot. Again thank you so much. Tried all kinds of quick fixes on the net for two days now and this worked. !!! This should be a sticky. Pin. Something. To note i was getting the "service 4wd" code and also my switch was showing auto but was actually stuck in 4hi.