NHTSA Complaint #11233620 — 2017 HYUNDAI TUCSON

I HAVE A HYUNDAI TUCSON SE PLUS 2.0 LITER HAS ALMOST 21K MILES. I STARTED NOTICING AN ISSUE A FEW WEEKS AGO WHERE IT WILL NOT ACCELERATE FROM A STOP OR SLOW CRAWL. I'VE HAD SOME FRIGHTENING SITUATIONS WHERE TAKING A LEFT TURN IN AN INTERSECTION THERE IS DELAYED ACCELERATION AS MUCH AS 2-5 SECONDS WITH ON-COMING TRAFFIC. THE PROBLEM IS EXACERBATED WITH THE AC ON AND UNDRIVABLE UNLESS I TURN THE AC OFF AT THE STOPLIGHT/STOP SIGN. I'VE TRIED ADDING SEA FOAM TO A FULL TANK OF GAS THINKING IT WAS DIRTY FUEL-INJECTORS, BUT NO IMPROVEMENT. MY BROTHER HAS AN IDENTICAL CAR WITH 31K MILES AND CALLED ME TODAY OF HAVING THE SAME ISSUE. THE ONLY COMMON DENOMINATOR IS IT HAS BEEN HOT (85-90 DEGREES) DURING THE DAY. WHEN THE TEMPERATURES ARE LOWER IN THE MORNING, I DO NOT NOTICE THE PROBLEM AS MUCH, BUT IT REMAINS SPORADIC. ALSO, I EXPERIENCED THE CAR SHIFTING AT UNUSUAL TIMES. I RECENTLY HAD AN OIL CHANGE AT THE HYUNDAI DEALER, AND I MENTIONED THE ISSUE. THEY COULD INVESTIGATE THE PROBLEM FOR A PRICE WHICH I WAS NOT INCLINED TO DO, MAINLY IF NO CODE WAS TRIGGERED AND IT IS UNDER WARRANTY. MY BROTHER IS TAKING HIS TUCSON NEXT WEEK, AND I WILL WAIT TO SEE WHAT COMES OF IT. IT IS NOT A COINCIDENCE THAT TWO IDENTICAL CARS WOULD EXPERIENCE THE SAME ISSUE AT THE SAME TIME. HAVING READ SEVERAL COMPLAINTS ON NHTSA AND OTHER FORUMS, I BELIEVE THIS IS AN ISSUE HYUNDAI IS NOT ADDRESSING. IF HYUNDAI CAN'T FIX THIS SOON, I WILL TURN THE CAR IN WHEN I LEASE IS UP IN A YEAR.