I just wanted to post a thread to express my aggrivation with chevrolet at this point. I just bought a brand new duramax and its already in the shop 4 days after I bought it. I had service warnings of every kind showing up on the dash and all my electronics were going crazy. The diagnosis was a bad computer so my dealer is having to replace it. I'm sure the truck will return back to its solid shape and performance, but this is the second Chevy I've owned and both were familiar with the dealership shortly thereafter the purchase. The truck though... I love it and I'm sure there are many enjoyable miles to come in my new unit. Take care!