2003 2500HD pick up truck- I put it into loXXXXXtoday to pull a loaded hay wagon up an incline and into the barn. Cannot get theXXXXXto disengage now. When theXXXXXbutton is depressed, the light there will flash a few times and then go off.
Can you suggest anything?
Welcome. Was it 4lo?
Ok, did you have the transmission in neutral to shift? It must be or it will be stuck in lo.
GM Grand Master Technician 2007. 11 years experience.
Should I have had it in neutral to shift INTO lo4 and OUT of lo4 ?
Yes, both need neutral to shift in and out of 4lo.