My Hyundai is experiencing transmission problems. When I come to a stop the car buckles and it doesn't seem to shift right on the highway. It has 75,000 miles. THe transmission fluid was never changed , however , i also kept an eye on it . It is full and never short. My dealer is telling me that i am responsible for any repairs for the transmission work since i did not have the fluid changed at 15,000 and 30,000 miles.Hyundai has 100,000 warranty on its warranty. My mechancic has told me that once you start changing your transmission fluid you begin to have transmission problems. I need some guidance in dealing with the car dealer. This is the first problem I had with the car. Can the dealer hold me responsible for not changing the fluid? Are Hyundai Accents known to have a poor track as it pertains to transmission problems? Thank you so much for your help!