2018 Buick Enclave POWER TRAIN,ENGINE

My car starting sputtering on take off from stops, extremely dangerous if you’re trying to get out in traffic and keep up quickly from a stop. Then when I took it to get looked at it the mechanic said it needs a new transmission. Now my family is stuck because that’s our only vehicle big enough for our growing family. They’re was a check engine light that keeps coming on.

The contact owns a 2018 Buick Enclave. The contact stated that while idling or at a complete stop, the vehicle lunged forward upon acceleration. The contact then stated that while shifted to park, the vehicle inadvertently started. The contact also stated that she heard a screeching sound in the wheels while shifting in the first gear, and intermittently in second and third gear. Additionally, the contact stated that the check engine warning light was previously illuminated; however, after driving the vehicle, the check engine light turned off. The vehicle was taken three times to the dealer where the failure could not be duplicated. The vehicle was not repaired. The manufacturer was notified of the failure and the contact was informed that the warranty was not honored, and no assistance was provided. The failure mileage was 125,639.

SHORTLY AFTER GETTING GAS, THE CAR WILL REV TO 2-3RPM WHEN LIGHTLY ACCELERATING, AND SEEM TO "RUN ROUGH". THEN, AFTER COMING TO A STOP AT A TRAFFIC LIGHT, THE CAR WILL AUTO STOP AND THEN SHIFT INTO NEUTRAL. I CAN NOT SHIFT BACK INTO DRIVE WITHOUT PUSHING THE START/STOP BUTTON TO RESTART THE CAR. IT DOES NOT HAPPEN EVERY TIME I GET GAS, BUT ALL 3 TIMES IT HAS HAPPENED HAVE BEEN AFTER GETTING GAS. THE FIRST 2 TIMES IT HAPPENED, I WAS TOLD THERE WAS A RECALL, WHICH WAS THE CAUSE, BUT THIS LAST TIME, THERE WAS NO RECALL, AND THEY SAID THERE WERE NO ERROR CODES, SO THEY DO NOT KNOW WHAT IS WRONG. THE CAR STALLING EPISODES OCCURRED IN AUGUST 2019, SEPTEMBER 2019, AND FEBRUARY 2020. IT MAY OR MAY NOT BE RELATED, BUT IN OCTOBER 2019, THERE WERE ALSO 2 INSTANCES OF AN "EVAP LEAK" THAT WERE FIXED.