2022 Hyundai Kona problems

“COMPONENT/SYSTEM: Air Conditioning (HVAC) / Climate Control System and closed-loop refrigerant lines. The vehicle and all climate control components are available for immediate inspection. SAFETY RISK: Total loss of cooling in peak summer heat (90°F-95°F+) causes cabin temperatures to rapidly exceed 110°F. This sudden heat trapped in the vehicle caused me (the driver) acute heat exhaustion, culminating in a medical fainting episode. The vehicle regularly transports my newborn baby and toddler, subjecting them to severe heatstroke risks. Additionally, an ongoing 4-year chemical refrigerant leak inside an enclosed EV cabin creates an active toxic inhalation hazard for all passengers. DEALER CONFIRMATION: Yes. The failure has been repeatedly confirmed and documented by authorized Hyundai dealerships, including Paramus Hyundai, Garvey Hyundai, and Liberty Hyundai. Technicians repeatedly measured zero refrigerant charge/pressure, performed UV dye tests, and completed major repairs including AC line and radiator rebuilds without resolving the leak. INSPECTION HISTORY: Yes. Inspected multiple times by authorized Hyundai dealership technicians under official Corporate…”

“My radiator has coolant leak. I noticed the fluid getting low and the smell. I had to put fluid in 2-3 times the last month. I took it into the shop and they confirmed that it is the lower left part of the radiator that it’s leaking from and it has to get replaced. I did notice on a campaign 24\-EM\-005H\. for the Hyundai Kona 2022. But my VIN number wasn’t part of that. It is having the same leak and I have to get the radiator replaced. My car has 65000 miles on it so it wasn’t covered under warranty. It is in the auto shop now and will cost me over 1200 to get it fixed.”

“The vehicle hesitates, jerks, and shakes when accelerating into traffic. The vehicle is at the dealership right now and they said Hyundai won’t approve replacement of the dual clutch unless it’s its below 60%. It’s currently at 61% on one side and 66% on the other side. In my opinion this vehicle is unsafe to drive but they are forcing my daughter to keep driving the vehicle. This is unacceptable.”

“We took this car in to the dealer to implement the "BMS Battery Logic Improve (26-01-065H)" update on 9/17/26. We have had two issues that appear to be software related and might be caused by improper voltage from the 12 volt battery. The issues are: - Warning messages appeared "Check forward safety system" and "Smart cruise control conditions not met”. The Smart cruise control stopped working. This is still happening. Started on October 10. - The Charging Port door release required 3 or more clicks of the "unlock" function to open. We resolved this by changing the unlock setting in the settings software, making us think this is a software issue from the update. Started on September 18. Safety is decreased by not having Smart Cruise and Forward Safety Systems available. We will go to the dealer today. We have reported this to Hyundai, case #43378707. No one else has inspected the car. The warning lights appeared on October 10th.”

“While driving my 2022 Hyundai Kona Electric at a low speed, pulling into a parking space, the electronic braking system suffered an immediate, catastrophic failure. Upon pressing the brake pedal, the vehicle completely failed to provide power brake assistance or slow down, resulting in a low-speed collision. The airbags did not deploy. Immediately following the crash, a diagnostic scan of the vehicle’s chassis network revealed active diagnostic trouble code C160404 (ECU Hardware Error / Internal Self-Test Failure), confirming a hard electronic fault within the Integrated Electronic Brake (IEB) module. This vehicle platform has a documented history of dangerous IEB signal and software anomalies under past federal actions like NHTSA Campaign 20V748000, where regulators explicitly stated that these failures significantly reduce braking performance, extend stopping distances, and cause crashes. My vehicle suffered this exact failure mechanism, posing an immediate threat to life and property. I am requesting a formal federal investigation into this specific electronic brake computer failure to prevent further consumer injuries or collisions.”

“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…”