NHTSA Complaint #11449080 — 2017 HYUNDAI SANTA FE

Car has repeatedly lost power or hesitated when making turns. Now it lost power and decelerated over 10 mph abruptly while driving on I-65. After deceleration the car would not accelerate to in a normal fashion. Took minutes to get up to speed. Upon a test drive at the dealership, Terry Lee Hyundai, I was told nothing was wrong with the car. I refused to believe that after my highway driving incident and made them test it again. It produced a dTC code of P0088. After having my car for four days they tried to return it to me again saying nothing was wrong with it. I was dumbfounded. How can I have a drastic highway incident and DTC codes emailed to me via bluelink and nothing be wrong. I feel this car is unsafe for highway driving. May cause a wreck due to the losing power while turning issue and now this highway driving issue. The car drove normal under 60 mph. The turning issue happens when the car makes quick 90 degree turns. Also the engine was replaced due to electrical interference issues at 96000 miles. Car has always had loss of power issues followed by the lack of the ability to accelerate properly. Please help!!!!