[mc051982]

I had a similar problem in which my Service 4WD light came on about 4 times within a week and by the time I got my vehicle in for service, my transfer case had to be completely replaced along with the selecter switch (costing over $1,300). I had 47K miles at the time. As told by the manager of the service department, who had been there many years and whom owns a 4WD chevy vehicle himself (we live in Anchorage,AK), the reason my 4WD went out is due to excessive use of the Auto 4WD selection on the switch. He said that the auto 4 wheel drive option will switch in and out of 4 wheel drive so much that the transfer case will wear out prematurely. I would say. And a convenient number that 47K....Just a few more than the 36K warranty. The service manager actually told me that he has seen it often enough that he wont even use the Auto 4WD option.
As a side note, the paint has been chipping off the door panels down low where road debris has been hitting it. This may not sound like an unusual problem, but look at similar SUVs with many more miles and the vast majority of them dont have half as many chips. The district manager of Chevy for my area refused to even look at my vehicle and dismissed my complaint. I owned a Grand Cherokee for 5 years and 89K miles with hardly any paint chips so it isnt my driving style (which is in a city with few rocks on the street). This is all despite the fact Chevy had distributed a service bulliten to all the dealerships stating that the district manager should look at any Trailblazers where paint chipping had been complained about in the same specific areas of the vehicle as mine. Obvioulsy there had been enough complaints for Chevy to produce the service bulliten, but someone on the corporate level stated that the final decision on whether or not to repair the paint on those panels. Gee I guess their hands are tied