2021 KIA K5 Vehicle Speed Control Problems

Ever since I bought my car in July of 2025 cash I’ve been having issues. Shortly after purchasing my car began to stall , lose power repeatedly. I then took to southwest kia in Dallas they told me I had contaminated gas. They charged me $2,000 to clean my fuel lines , replace spark plugs & replace a fuel pressure sensor. Shortly after i got my car I had the same issues. I explained my concerns and they replaced my fuel tank free of charge. A week later same issue so I went to a local mechanic and he replaced another fuel pressure sensor a month passed same issues occurred at least 3 more times on 3 different occasions. I’ve had to get my car towed off the middle of the free way or road numerous of times. This has been a financial nightmare

While driving on 7/6/2022, upon acceleration, the vehicle began jerking and applying the brakes as if it was trying to attempt to avoid a rear end collision. Moments after that incident, the instrument cluster displayed warning lights of the following: check forward safety system, traction control, front end collision avoidance, electronic parking brake, and auto hold all in an orange color followed by a check engine light shortly after. Safety was put at risk due to the vehicle suddenly and uncontrollably braking without any warning on prior indication. The vehicle has not been inspected by anyone yet, but is schedule for a dealer diagnostic on August 9th, 2022. Currently, this vehicle has 10,900 miles on the odometer.