Hyundai Kona transmission failure problems

Filed Oct 1, 2026 · Acceleration, Transmission · AZ

I purchased this 2022 Hyundai Kona used in May 2025 with approximately 55,000 miles. Within about one to two months of purchase, in June 2025, the transmission began to malfunction. When I pressed the accelerator, the speedometer and engine speed would climb but the vehicle would not accelerate, resulting in a sudden loss of acceleration while driving. This happened in traffic on a public road, which put me at serious risk of being rear-ended and left me unable to safely merge, cross intersections, or maintain speed. The vehicle was taken to a Hyundai dealership service center, which diagnosed a transmission failure and performed a transmission repair in August 2025. In October 2026, about 14 months after that repair and about 17 months after I purchased the vehicle, the exact same symptom returned. When accelerating, the speedometer surges while the vehicle fails to accelerate and loses drive. This has again occurred on public roads. The vehicle now has approximately 78,000 miles. This is a serious safety concern, not only for me but for everyone driving around me. The loss of acceleration is sudden and unpredictable, and it occurs while the vehicle is in motion, including in traffic. It puts the driver and surrounding vehicles at risk of a collision. I have stopped driving the vehicle until it is repaired. Warning signs: No warning lights or messages appeared before the failure. The first symptom was the speedometer surging with no corresponding acceleration. Confirmation and inspection: The first failure was diagnosed and repaired by a Hyundai dealership service center in August 2025. The current failure will be taken to the same service center for diagnosis. The vehicle and transmission are available for inspection. I am reporting this because the same symptom has led to transmission failure twice in only about 17 months of ownership.

Filed Apr 9, 2026 · Brakes, Engine · TX

I have already replaced the transmission out of pocket 7k its began to do the same thing immediately was flushed a 2nd time and told it could be the motor. Also my battery i have bought 2 new batteries in 2 yrs now to find out its a false warning.

Filed Oct 15, 2025 · Transmission · CA

The DCT(Dual Clutch Transmission) has always been an issue since I purchased the vehicle. Anytime I would be going at a slow pace in a drive-thru or traffic on the freeway the car would jolt and shake. I brought my car to a Hyundai dealership in 2021 at 36,000 miles and was told this was normal with the transmissions provided by Hyundai and there was no need to worry. Now, at 72,000 miles I was driving down CA-60 when my car transmission died. The car would not go when I was giving it gas and would make a whirring noise when trying to accelerate across the freeway until I could pull off to the shoulder. It was extremely dangerous and I could've been hit by someone especially a semi-truck as it was sudden and I was in the left hand lane. I've been bringing it to an independent mechanic for years and he always told me to wait until there's a recall as it's a faulty transmission however there has not been a recall for my car yet. The car is now in possession of a Hyundai dealership however I was told since my warranty has passed they are not claiming any responsibility but that their transmission is faulty. There was no warning lamps or messages in the car just the issue of jolting while at slow paces prior to the transmission dying.

Filed Aug 26, 2024 · Electrical, Engine · GA

Transmission need to be replaced.

Filed Aug 17, 2023 · Transmission · CO

* The 7 speed DCT transmission (automatic) jerks and down shifts hard and lunges forward when braking and coming to a stop. Upon acceleration the transmission also is jerky in first gear. It's like driving a manual transmission for the first time. * If not properly controlled by braking, I could hit the car in front of me. * I have had the vehicle in twice to the Hyundai dealership, but they say the judder not bad enough to replace the transmission. They also did a software update that did not change anything. There is a Hyundai Technical Service Bulletin #22-AT-007H * There were no warning lights or messages to indicate the problem. The vehicle currently has 35,200 miles. I noticed the bad shifting at about 12,000 miles and it has gotten worse.

Filed Jun 12, 2023 · Transmission · LA

We were diving on the interstate and the RPMs went up all the way up and after it came back down the car wouldn’t respond anymore and came to a stop while on the interstate putting my family safety at risk! There were no notifications before the car came to a stop while on the interstate but when we pulled over to the shoulder we tried to start the car again and then the Check engine light came on saying there was issues with the transmission control system. We had the car towed to Hyundai of Metairie on 5/28/23 and notified Hyundai of everything that happened. We were assigned a case# from Hyundai on 5/30/23. We were later contacted by the Hyundai case manager on 6/9/23 and the Service department letting us know that a new transmission will need to be installed on a brand new car we only had for 33 days at the time of this incident!

Filed Jun 2, 2023 · Acceleration · WA

While traveling at 70 mph on the freeway my 2023 Kona with less than 2,000 miles dropped into neutral and lost speed, almost causing a crash. I’m lucky the driver behind me braked in time. The dealer has informed me that the transmission needs to be replaced.

Filed Mar 14, 2023 · GA

Transmission failed, to start with it wouldn’t go into reverse, then while trying to drive in forward it stalled and shut everything down with a code message going across the screen a possible condition with your transmission control system has been detected.a full check system is recommended to be done soon.please contact your local dealership to make appointment. Had to have car towed to dealership transmission would not operate at all.

Filed Jul 29, 2022 · Transmission · NY

After driving the car for several hours, I arrived at my destination and as I was parking the vehicle, it would not move when put in reverse. I received a message on the dashboard that said, “transmission problem detected.” I had the car towed the nearest Hyundai dealer. They diagnosed the issue as a transmission failure. They ordered and replaced the transmission with a rebuilt unit under warranty. I picked up the vehicle approximately 3 weeks later when the repair was completed. I drove the vehicle for 1 week before a similar problem occurred. While driving the vehicle, I received a warning message on the dashboard and the vehicle stopped on the road. The symptom of this subsequent failure was that the vehicle could not go over 2-3 mph. I had the vehicle towed to the nearest Hyundai dealer approximately 10 days ago. It is currently sitting in the dealer's lot waiting for them to "get around to check it".

Filed May 3, 2022 · Transmission · NJ

Transmission failure. Car is 10 months old with 4000 miles on it. Extremely dangerous because this happened on the garden state parkway. This needs to be categorized as a catastrophic failure