NHTSA Complaint #11221979 — 2016 GMC YUKON DENALI

I HAVE ONLY OWNED THIS CAR SINCE 3/29/19 AND SEVERAL TIMES NOW MY YUKON'S CHECK ENGINE LIGHT HAS CAME ON AFTER THE TRANSMISSION BUCKS, JUMPS OR JERKS HARD, NOT SURE WHAT TO CALL IT BUT IT BUCKED OR SHOVED MY CAR FORWARD WHEN TRYING TO SLOW DOWN OR STOP (NOT PRESSING GAS PEDAL). THIS COULD BE DANGEROUS AS IT INTERFERES WITH TRYING TO STOP THE VEHICLE. IT WAS SUCH A HARD JOLT THAT IT FOR A MINUTE I THOUGHT ANOTHER CAR REAR ENDED ME. THIS HAS HAPPENED AT LEAST TWICE AFTER I PRESSED THE BRAKE TO BEGIN SLOWING DOWN AS I WAS PREPARING TO PULL INTO A PARKING LOT, I WAS PROBABLY GOING AROUND 20MPH. IT ALSO HAPPENED TWICE WHILE ACCELERATING ONTO A ROAD, PROBABLY GOING 35 MPH AND JUST FELT A JOLT LIKE SOMETHING KICKED MY CAR FORWARD SUDDENLY. I'VE BEEN TOLD THAT THE JERKING PROBLEM IS RELATED TO ISSUES WITH THE TRANSMISSION, POSSIBLY THE TORQUE CONVERTER AND CAUSES GEARS NOT TO FUNCTION PROPERLY. I'M GOING TO PUT IN MY MOST RECENT DATE THAT THIS HAPPENED ON YOUR FORM BUT IT'S HAPPENED MORE THAN ONCE.