Anyone towing with a chevy 1500 HD or 2500 HD and gotten the "service 4wd" indicator?
I have several times now and can tell you what the problem is. Its the servo motor and its positioning indicator in the transfer case. This would be the models with the push button 4WD/AWD/2WD etc. What a pain in the
Anyway, just had mine replace again. Hopefully this one will last a couple months before the truck goes bye bye.
This is not on the newer models. My truck is a '06 with 85000 miles.