 On June 1, 2017, I purchased a 2016 Hyundai Tucson Limited with Ultimate Package. Approximately six months ago, I noticed that when I released the brake to move forward after stopping the car would jerk.  On June 2018, I took my car to Fort Mill Hyundai. The service center reset the adaptive values on my transmission and told me this would help correct the problem. This did not help at all. Within days the car was jerking once again. A month later, while attempting to turn left across a main street, my car did not accelerate. The RPMs increased but the car did not move for at least 5 seconds if not longer. Two weeks later, while once again, I was turning left on another busy street the car did not accelerate.  I took the car to South Charlotte Hyundai on August 6, 2018. After going three days without a car, South Charlotte Hyundai called (8/9/2018) to tell me my problem had been fixed by resetting the adaptive values on my transmission.  This was the same "fix" Fort Mill Hyundai did in June 2018 which did not correct the problem.  On August 13, 2018, while traveling with my family, including my five-year-old nephew, my car failed to accelerate after a brief stop at a stop sign. I called Fort Mill Hyundai to make an appointment to have this serious issue looked at again.  I was told that the earliest appointment that they had was a week from now on August 21, 2018.   Because of this serious issue with my car, I have been exploring the best option for me. After getting no satisfactory answer from the Hyundai USA consumer affair department, I decided that it may be best to do a private sale for my car.  I did also visit the Fort Mill Hyundai to evaluate my option of trading in my car for a safer one.  When my sales associate took my car to be evaluated they found that South Charlotte Hyundai made a major mistake which makes them, or any other dealers unwilling to purchase my car. This mistake began in June 2017 when a light in my dashboard replaced. I took my car to South Charlotte Hyundai to have the light replaced. When the car was returned I noticed that the odometer had been reset to 0.  I spoke with the serviceman about this reset and he showed me a sticker that they had put on the inside of the driver's door showing the original miles. When I raised my concern that people would not know the sticker was there the serviceman said: “the system will let them know that the odometer was reset.”  Months later when I took my car to Precision Tune for an oil change, my miles was recorded as the amount on my current odometer reading. When I later took it to Fort Mill Hyundai in June 2018 they too recorded my miles at its current odometer reading.  Another dealership also was not alerted to this issue and recorded the miles incorrectly as well.These records of a lower mileage have raised a red flag on my Carfax report which I was unaware of until the recent appraisal at Fort Mill Hyundai. I was told, that it was determined they couldn't purchase my vehicle with this defect on the Carfax. The service manager went on to tell me that I could not sell the car privately with this defect.  He said it could open me up to liability legal liability concerns.  I contacted Hyundai USA on August 14, 2018, to ask them is there any way that they could not only fix my Carfax report but fix my odometer to reflect my actual mileage. The customer service representative I spoke with, Erin, was completely uncaring. She told me that Precision Tunes had made the mistake and that Hyundai USA will not help me with correcting the carfax report. She did not address the transmission issue or my request to have the odometer fixed. Her response was that Hyundai USA do not cause the issue and so they would not help me.  On August 15, 2018 I spoke to Fort Mill Hyundai about fixing my odometer. They informed me that it can be done but South Charlotte Hyundai would have to send it off to be corrected. I then called Hyundai USA to see if I could get a new case manager to help with at least getting the odometer fixed. I was told that the case was closed and they will not review it again.