2017 Kia Optima Power Train

On Friday 6/23/2023 on my way home from work, one of the clutches went out on my DCT Transmission without any warning. I was at a stop light in front of all of the cars in a busy section and wasn’t able to go. I was able to get it to a safer location, but new something was wrong with my transmission. My mechanic was able to tell me that I’ve lost the 1st & 3rd gear. We drove around a few blocks with his diagnostics computer hooked into my car. My car isn’t safe to drive due to the faulty DCT Transmission Kia had installed into this model.

Vehicles has most recently developed a "whizzing" type sound coming from the transmission just before it shifts into the next gear. It is most discernible when it shifts out of 1st, 2nd, and 3rd gears. I don't profess to know if modern transmissions have "Bands" that are adjustable or not. Clearly, it is a sound that has never been present. There's been enough wrong with this Kia, so why not transmission issues as well. I was at my dealer today for PA State Inspection & Emissions along with an oil change (a problem arose out of the oil change that I just sent into the NHTSA) and they have me coming in on September 12th for a diagnostic look.

I was driving down hwy 60 in Lake Wales, Florida, passing a car at 70 mph. While passing, all of the alerts and indicators came on my dash, and I lost the ability to accelerate. To get off the road without getting rear-ended, I drove off into the grass in the median and stopped on the paved crossover. When I stopped the car, it shook and the engine died. The "hybrid warning/turn engine off" light came on in the middle of the display, so I turned off the car. I waited a few minutes and turned the car back on, no alerts were showing, but when I shifted into drive, the hybrid warning came back on, and all the lights/alerts on the dash were lit. The car had to be towed to the dealership. On Tuesday, Feb. 15, the dealership told me they performed a software update and the car was running again, but they wanted to keep it another night. On Wed., Feb. 16, the dealership called again to tell me the same situation that occurred on 2/14 happened again. They told me the codes that were given were related to the transmission. They said the transmission had to be replaced. The car is 5 years old. I asked about the transmission control module, and they said the entire transmission had to be replaced in order to replace the TCM. I took the car in after a recall notice was received in January 2022. I was told the recall only required an inspection, so there was no software update at that time. The tech told me that the original software update was done in April 2021. We received a 2nd recall notice this week saying the prior software update had an error and needed to be updated. The tech told me this is the update they did on 2/15. The dealership is telling me I need a new transmission. I'm having a hard time trusting anyone at the dealership.

KIA OPTIMA 2017 HYBRID. 26K MILEAGE AND AUTOMATIC TRANSMISSION BECOME VERY CLUNKY, CAR JERKS WHEN SHIFTING ON ANY GEAR. NOT STABLE DRIVING, STRANGE NOISES UNDER THE HOOD ESPECIALLY WHEN VEHICLE GOES UPHILL AND EVEN ON STRAIGHT ROAD CAR TWITCHES. NO OIL LEAKS FROM THE BOTTOM.

I BELIEVE THERE IS A PROBLEM WITH THE TRANSMISSION IN THIS CAR. IT IS AN LX WITH THE 2.4L ENGINE GDI. IT'S THE STANDARD ENGINE. THE TRANSMISSION SEEMED "OFF" AFTER A FIRMWARE UPDATE. PRIOR TO THIS, THE CAR REALLY PERFORMED AND ROLLED NICELY. BY THAT I MEAN, THERE WAS NO DETECTABLE DRAY WHEN TAKING MY FOOT OFF THE GAS. IN DRIVING THE CAR NOW, THE CAR JUST SEEMS TO LUG, AS IT TAKES MORE ACCELERATION TO GET THE CAR MOVING. THE TRANSMISSION "HANGS UP" AT AROUND 40MPH, WITH NO LOAD ON THE ENGINE. THE TACH AT 40MPH OR THEREABOUTS, READS AROUND 1900-2200RPMS. THIS IS FAR TOO HIGH IN MY OPINION, BEFORE I GO A LITTLE FASTER, AND THE TRANS FINALLY SHIFTS TO THE NEXT GEAR, LOWERING THE RPMS TO WHERE THEY SHOULD BE AT 40 MPH. GAS MILEAGE IS DOWN APPROX. 20% TO WHAT I ENJOYED BEFORE THIS STARTED. I DID HAVE THE CAR BACK TO THE DEALER, FRED BEANS IN LANGHORNE PA, FOR ROUTINE MAINTENANCE AND MENTIONED IT TO THE SERVICE WRITER. OF COURSE (AND I MEAN THIS WITH ALL DUE RESPECT), THEY COULDN'T DUPLICATE THE EXPERIENCE. WHAT THE DID DO WAS WIPE THE TRANSMISSION MEMORY CLEAN AND WE STARTED FRESH. THE IDEA BEING THE TRANSMISSION WOULD RELEARN MY DRIVING HABITS. I DON'T PROFESS TO KNOW EVERYTHING ABOUT A TRANS LEARNING HABITS, BUT I DO KNOW THAT THE TRANS SHOULD NOT HANG UP BETWEEN GEARS FOR ANY REASON. DUE TO RETURN TO THE DEALERSHIP FOR REGULAR SERVICE. WILL MENTION IT AGAIN. OUT OF REGULAR WARRANTY BUT I DID PURCHASE AN EXTENDED WARRANTY.

MISSFIRE ON CYLINDER 3, CHECK ENGINE LIGHT, CODE P0303. AT 34,900 MILES.