2022 Hyundai Kona engine problems

Filed Sep 21, 2026 · Engine · WA

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.

Filed Jul 30, 2026 · Electrical, Engine · NJ

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 Case Nos #42549212, #41020884, and #23781133. WARNING LAMPS/SYMPTOMS: No dashboard warning lamps or error messages ever appeared. The only symptom was the AC suddenly blowing boiling hot air as refrigerant leaked out. This failure first appeared in Summer 2022 (shortly after vehicle purchase) and has recurred every summer for 4 consecutive years despite repeated warranty repair attempts.

Filed May 19, 2026 · Engine · MS

I purchased my 2022 Hyundai Kona on August 28, 2024, and I am the first registered owner. Only 48 days after purchase, the vehicle suddenly broke down without warning while stopped at a red light in [XXX] after traveling from [XXX] . The vehicle had to be towed. Since then, the vehicle has repeatedly experienced dangerous engine and timing-related issues despite major repairs, including an engine replacement, timing chain repairs, and multiple dealership inspections. The most dangerous incidents involve sudden power loss and large clouds of smoke while driving. On January 1, 2026, while attempting to pass a semi-truck on a multi-lane highway, the vehicle suddenly lagged, lost acceleration power, and emitted a large cloud of white smoke from the exhaust. This created an extremely unsafe situation because I was actively passing traffic at highway speeds and could have been struck by surrounding vehicles. I have also experienced these failures late at night on busy highways while traveling between [XXX] and [XXX] . In March 2026, the vehicle again emitted a large cloud of smoke and resumed lagging during acceleration. On April 23, 2026, Hyundai of Meridian informed me they personally witnessed the vehicle emit another large cloud of black smoke during test driving. These smoke events can reduce visibility for surrounding drivers and create hazardous roadway conditions. The vehicle has spent approximately 149 days in repair facilities, nearly 24% of the time I have owned it. Multiple dealerships documented timing chain slack, cam timing issues, and major engine concerns. Despite the recurring failures and safety concerns, Hyundai denied replacing the engine again and denied buying back the vehicle. I no longer feel safe operating this vehicle due to the risk of sudden power loss, engine failure, and smoke emissions while driving in traffic. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Apr 13, 2026 · Engine · MS

In January 2026, my engine light illuminated and the vehicle lost power. The dealership found a sudden loss of compression across all four cylinders, requiring a total engine replacement. This occurred without warning, only two months after a routine oil change at the same facility where no issues were reported. Despite opening a case with Hyundai corporate, there has been no progress. My research indicates that while the federal safety agency Recall 21V301 (Safety Recall 203) specifies 2019–2021 models, the 2022 model shares the same engine design and identical reports of stalling and compression loss. My vehicle has been at the dealership for three months with no resolution. The dealership says they are running tests requested by tech line without providing documentation of the tests or the results. Although, the initial test performed indicated that it was a compression ring issue.

Filed Mar 13, 2026 · Engine, Transmission · CA

I found a lot of shaved metals when I did the oil change for the Gear Reduction. It made a lot of noises when driving or the wheel of fortune sounds whether the car is in Regenerative Braking. The sounds developed as time goes on but Hyundai failed to recall this issue. I found this has been an ongoing issue since 2019 when Hyundai make this Kona EV, but their engineers didn’t fix this type of issue and continue to manufacture the Kona EV with the same Gear Reduction Assembly and it caused a lot of noises with these shaving metals found in the oil changes. This is abnormal for a GRU to have so many metals found in the oil. Thus, it made a lot of noises. Now my car can’t even drive because of this. The GRU has been broken because of this issue that Hyundai didn’t even fix since 2019.

Filed Jan 20, 2026 · Engine · MI

The vehicle displayed a warning lamp indicating a Cooling System Performance failure. The specific defect relates to the Integrated Thermal-Management Module (ITM) and the thermostat opening prematurely, corresponding to Diagnostic Trouble Code (DTC) P218100. This issue requires a repair outlined in Technical Service Bulletin 25-EM-007H, involving a spring installation and ECU update. This failure creates a serious safety concern because improper thermal management can cause the engine to overheat or force the vehicle into a reduced-power 'limp mode' without warning. A sudden loss of acceleration or engine stall while driving in traffic significantly increases the risk of a crash.

Filed Aug 15, 2025 · Brakes, Engine · TX

When I purchased the car with in 2 weeks epb , auto hold and auto stop all 3 lights on dashboard came on orange. Took to dealership and they fixed the problem. 4 months later now the lights are back on. The vehicle does not feel safe at pulls to the right , I have problems with my ac as well as my transmission is slipping. The car loses power when I accelerate. I believe was sold a lemon car I purchased from carmax.

Filed Aug 12, 2025 · Engine · MO

On Saturday, [XXX], while driving on the highway, the oil plug on my vehicle suddenly fell out, causing all the oil to drain rapidly. This created an extreme safety hazard not only for myself but also for other drivers on the road. I did not notice the oil spillage until the oil light on the dash appeared. At the time, I was in the leftmost lane traveling at highway speeds, so I could not stop immediately. I had to carefully veer across five lanes of traffic and navigate out of a construction zone before I was able to pull over safely. The engine lost lubrication during this process, and I was forced to have the vehicle towed to Ed Napleton Hyundai in Hazelwood, the same dealership where I purchased and serviced the car, for inspection and repairs. This incident occurred just three weeks after I had an oil change performed at the same dealership. I have been attempting to contact the dealership for updates on the status of my vehicle and the investigation into potential engine damage for the past three days, but I have received limited information until today, when the service manager, Jerry, stated that they installed a new plug and added oil, and since it's not ticking, it's okay. However, having worked in the automotive industry for years, I know that a full teardown is necessary to properly check for damage, including inspecting the bearings, rings, cylinder walls, and turbo for signs of oil starvation. This service was not performed. Additionally, Jerry informed me that speaking to someone higher up would do absolutely nothing for me. This is not an isolated issue. Over the course of my ownership, the dealership has damaged my oil filter by over-tightening and stripping it on two separate occasions during routine maintenance, requiring me to return to the facility each time. On both instances, I had to wait an additional 2 to 3 hours while they installed replacement parts to correct their errors. These repeated mistakes have caused significant inconv INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMAT

Filed Jun 30, 2025 · Engine · 80,000 miles · FL

The contact owns a 2022 Hyundai Kona. The contact stated while driving at an undisclosed speed, the vehicle lost motive power with the check engine warning light illuminated. The vehicle was able to be restarted. The vehicle was taken to the dealer but was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 80,000.

Filed Jun 17, 2025 · Engine · NY

I believe it’s a barring in the engine but it is like a knocking.