2023 Hyundai Tucson Hybrid

Two times in the last two weeks of March and about 10 times since we purchased the vehicle new in December 2022, after starting the vehicle and backing out of our garage onto our street, then stopping then shifting from reverse to drive and going no faster than 15-20 mph for about 300 yards, the Tucson revs up to about 3ooo-3500 rpm and will not shift into second gear. After about 1 minute or so it seems ok. But until then the transmission does not shift smoothly like it did the first six weeks of ownership. It did not operate like this until about the beginning of February. Something is not right with the transmission. I suspect his will be difficult to diagnose since it is intermittent. Want to get this documented and checked out before this becomes a major problem. This is also a safety concern since the vehicle is limited to about 15 mph and could cause an accident if it malfunctions when pulling out onto the street and there is following traffic. Our vehicle has been at the dealership since April 7th waiting for approval and installation of a new factory transmission. Was supposed to be completed yesterday or today, but no info from the dealership yet. I suspect this may not have resolved the vehicle defect.

ATTEMPT TO ACCELERATE AND WILL NOT ACCELERATE AND CAR START OVERHEATING AND BAD ODOR SMOG COMING OUT FROM THE EXHAUST. DEALER FOUD THE FOLLOWING, CONCERN SCANNED FOR CODES, FOUND CODES P111100, P030000. P030100, P030300, P030400 ABNORMAL COMBUSTION DETECTION FOR ANY CYLENDER, RAMDON CYLINDER MISFIRE DETECTED CYLINDER #1,2,3,4 MISFIRE DETECTED, PERFORMED FUEL TEST FOUND ALCOHOL AT 5% FOUND FUEL WAS DISCOLORED AND SMELL VARNISH OR CONTAMINATED, DEALER STILL HAVE THE CAR AND THEY WANT US TO PAY FOR THE REPAIRS AND VOID THE WARRANTY, WE CONTACT THE STATE TO DO A FUEL TEST TO THE GAS STATION AND EVERYTHING IS WITH THE GUIDELINES BASE ON THE REPORT, LOOKS LIKE THE CAR IS DEFFECTIVE AND SOMETHING NEEDS TO CHECK

I was driving to work taking the same route I have since I purchased the vehicle when I lost acceleration on the road. I was unable to go above 40 MPH and I had the gas pedal pressed all the way to the floor. I was going uphill and the lack of acceleration could have caused an accident if there was not enough space behind me and the vehicle behind me.