 My Tucson has been a nightmare since I bought it. Within the first thousand miles,I noticed a loud buzzing/whirring sound from the engine. At idle it was very annoying. I took it back to the dealer on two occaisions and was told:"We can't hear anything like you describe". I even requested that a new Tucson be started alongside my Tucson for comparison. The difference was dramatic but I got the same response:"No difference here!". I tokk the SUV to an independent mechanic who used a stethescope and made a diagnosis of a timing belt problem. The dealer refused the diagnosis of course and basically said:You'll get that". Not worth the hassle of going through customer service.