Thanks for the reply somoney7. The dealer has told to me return the vehicle when it happens again. Do you recall where the 4WD module is located? Did you have yours towed in? Just curious how your dealer found the problem. I have heard from other Blazer owners of this same problem. The remedies have been the switch and the wiring harness to the trans.. This is the first time I have heard about a 4WD module.
Thanks again
