I own a 2001 yukon that I bought in 2006 from GMC dealership. This truck is mint condition, I bought it as it was a trade in from the original owner who bought it from the same selling dealership. I have had nothing but good times with this truck for me and my wife and 3 kids. I have kept this truck in mint condition, washed and waxed regualry, 20' wheels, hid lights, upgraded the sound system. Well about 2 months ago we took a trip to orlando to visit the inlaws, it about a 3 hour drive for us. As w ewhere driving I started to notice the kids having a slight cough (kids ages 5,3, 1 1/2) so we get to the inlaws and my mother in law is all over my case as to why we came up when the kids are sick and coughing, we explained that we where fine before we left. So thinking maybe I need to replace the a/c cabin filter and clean out the evaperator i went ahead and did that. Although I keep this truck well maintaned and always replace filter every 5-7000 miles. Well come to find out that the roof rack on my truck has created rust holes on the roof, water has eneterd the truck and just soaked the carpets causing mildew and mold explaining the coughing and getting sick. I had removed the roof rack and was devestated by the damage. This is truly a factory defect, the steel nuts that secure the roof rack to the roof just rusted away causing quater size holes in the roof. I have spoken to GMC who claim that this truck is to old and out of warranty, they do not want to hear about it and told me that casue I live in south florida it rains salt water, the they also say cause my truck is nt garaged kept. Can you beleive this ****? At first they told me to take it to a dealership to have it diagnosed, the dealership manger could not beleive the damage and even said what a well taked care of truck, he clearly stated this was due to the roof rack, besides my 5 year old son can tell you that. But GMC continues to deny my claim, the roof is so damaged that it needs replacment at a sum of 3,000. let alone all the damage to the carpets and fuse box as well as he abs module. Wouldnt you think a truck would last more that 8 years, and lookn at the rust it is clear that this has been rusting for years, but do to it being hidden on the roof rack i couldnt see it. I am urging you to unscrew you roof rack with a t-30 torx and ispect for rust before you run out f the 6 year or 100,000 miles warranty, cause these trucks clearly wont last any longer. It is funny how my 95 yukon that I bought 4 years ago from a gilr from detroit has no rust. Yet my 2001 is rotting away, I guess that is a prime example of saying I guess they dont build them like they use to. I am enclosing some pics so you can see the damage and you can clearly see where the rust began, also note the shine on my roof. When I wash and wax i even get the roof. this is incredible how GMC will not do anything about it, you would think that they wouldnt want this to get out, yet they denied me. they tell me its time i take responsibility for my own truck. I am warning other gm owners to just ck and ake sure your truck is ok. Heree is acopy of the GMC warranty right off of their website, note how they do not recomend any rust-inhabiting material, when i questioned Mr frank Anderson (GM district specailist) He told me well gmc also doesnt recomend you drive your truck off of a cliff. Covered for six years/100,000 miles* Corrosion Protection GMC vehicles are designed and built to resist corrosion. All body and sheet metal components are warranted against rust-through corrosion for six years or 100,000 miles, whichever comes first. Application of additional rust-inhibiting materials is not required under the corrosion coverage and none is recommended. See your GMC dealer for terms of this limited warranty. Guys and gals, tell me what you think, is this fair? I cant afford to just go out and buy another suv. I cant afford to just dump thousands into this truck due to a factory defect. What would you do????