Hyundai Kona check engine light comes on

Filed Oct 5, 2026 · Engine, Fuel system · AZ

All 4 fuel injectors failed. They were replaced but the check engine light came back on. Crank shaft sensor was then replaced and now the check engine light is back on. Driving the car waiting for something to fail is not safe

Filed Sep 29, 2026 · Engine · AR

COMPONENT THAT FAILED: The engine short block piston rings (related to the federal safety agency recall 203) failed, causing severe cylinder wall scoring. The vehicle is currently located at an authorized Hyundai dealership and is available for manufacturer or the federal safety agency inspection. SAFETY RISK; The defective piston rings caused severe internal oil consumption, resulting in hydraulic oil starvation. This creates a high risk of sudden engine stalling, catastrophic engine seizure, and complete loss of motive power while driving in traffic. CONFIRMATION AND INSPECTION: Yes, the defect has been confirmed. The current Hyundai dealership performed a boroscope inspection, which physically confirmed severe vertical metal scoring in cylinder 3. They also documented that the engine was 1.5q low on oil with zero external leaks, confirming internal consumption. Despite physical proof of the recall defect, the manufacturer is currently refusing to honor the recall repair. WARNING LAMPS/SYMPTOMS: The check engine light illuminated, logging exhaust camshaft timing correlation codes (P0017). This first April 2026 at 169,000 miles. This timing code is a secondary hydraulic symptom caused by the severe internal oil starvation originating from priary lower block cylinder scoring defect.

Filed Sep 15, 2026 · Engine · 56,144 miles · PA

The contact owns a 2023 Hyundai Kona. The contact stated that while driving 64 MPH, the vehicle experienced a loss of motive power with reduced acceleration. The check engine warning light illuminated. The vehicle was taken to a dealer, where it was diagnosed that the valve and boost solenoid needed to be replaced. The vehicle was repaired; however, the failure persisted. The manufacturer was notified of the failure. The failure mileage was 56,144.

Filed Sep 9, 2026 · Engine · OH

The contact owns a 2020 Hyundai Kona. The vehicle was taken to the dealer to be repaired under the federal safety agency Campaign Number: 21V301000 (Engine); however, the dealer was unable to perform the recall repair because the vehicle had not experienced a failure associated with the recall and there were no fault codes displayed or retrieved associated with the recall. However, an independent mechanic recommended that the engine be replaced. The contact provided the dealer with the fault codes and the failures that the independent mechanic had found; however, the dealer was unable to retrieve the same fault codes. The contact stated that the check engine warning light was illuminated. The manufacturer was notified of the failure and agreed with the dealer and refused additional assistance. The vehicle was not repaired.

Filed Sep 7, 2026 · Engine, Fuel system · TX

My 2019 Hyundai Kona SE (2.0L Nu MPI/Atkinson engine) was previously subject to the federal safety agency Recall 21V301000 (Hyundai Recall 203) for defective piston oil rings that can chip and cause accelerated oil consumption, engine knocking, and stalling. That recall's remedy was performed under a prior owner in December 2021. In November 2025, a Hyundai dealership installed a Cylinder Noise Diagnostic System (CNDS) software update (Service Campaign 974) specifically meant to detect this defect's vibration signature before it causes engine damage. Approximately 7,000-8,000 miles and about nine months after that software update, the vehicle stalled unexpectedly while being driven on two separate occasions, with no check-engine light or other warning beforehand. A third stall left the vehicle unable to restart. It was towed to a service station, which found no engine oil and no external leak. A Hyundai dealership subsequently diagnosed cracked valves that allowed approximately 5 quarts of oil to burn through the engine, and determined the engine requires complete replacement. This is the same failure mode (oil consumption/engine damage leading to stalling) that the original recall and the 2025 software update were both meant to prevent, and the software gave no advance warning before the stalling occurred. The vehicle and dealership diagnosis are available for inspection upon request.

Filed Jul 30, 2026 · Engine · VA

I was driving to work on a normal day under normal circumstances when a check engine light won my dashboard. Seconds later my car started showing car is over heating. I immediately swayed from the speed lane to the side of the road almost getting into a crash as other vehicles were at full speeds behind me. I immediately called dealership and made an appointment. My vehicle experienced a premature failure of the cooling coolant valve, a critical component of the engine cooling system. This failure resulted in diagnostic trouble codes, warning messages, and concerns regarding the reliability of the vehicle. A component of this importance should not fail on a vehicle that is only three years old and has been properly maintained. When I brought the vehicle to an authorized Hyundai dealership, I was required to pay a $248 diagnostic fee simply to identify the failed component. After the diagnosis, I was presented with an estimated repair cost of approximately $1,600 to replace the defective coolant valve and associated parts. I believe these charges are unreasonable because the failure appears to involve a defective component rather than normal wear and tear. Consumers should not be expected to pay significant diagnostic and repair costs for a major cooling system component that fails prematurely. I have also learned that Hyundai has issued recalls and/or service campaigns affecting certain other vehicles for cooling system-related issues. However, my vehicle is apparently not included in those actions, despite experiencing a similar premature failure. While I understand that recalls apply only to specific vehicles and conditions, I respectfully request that investigators determine whether the defect affecting my vehicle is related to those existing actions or whether additional vehicles, including my 2023 Hyundai Kona, should be evaluated for expanded coverage. My research also indicates that other Hyundai Kona owners have reported similar coolant valve fail

Filed Jun 27, 2026 · Engine, Transmission · NE

I am writing to express my frustration and concern regarding my 2021 Hyundai Kona, which currently has only 88,754 miles. My vehicle has been experiencing excessive oil consumption along with an ongoing check engine light. The diagnostic trouble codes are P0017 and P0011. In an effort to resolve the issue, I have had both the intake and exhaust VVT components replaced and the oil changed. When the problem persisted, my mechanic advised that Hyundai OEM parts were required. I then spent approximately $700 replacing the components with OEM parts, yet the check engine light remains on and the same issues continue. At fewer than 89,000 miles, I do not believe these are problems that should be occurring on a properly maintained vehicle. I have already invested significant money trying to repair what appears to be a larger issue, and I am left with a vehicle that is still not functioning correctly. I am requesting that Hyundai investigate this matter and provide assistance in diagnosing and repairing the underlying cause. Given the known concerns regarding excessive oil consumption and timing-related issues reported by other Hyundai owners, I believe this situation warrants Hyundai's attention and consideration for goodwill assistance. I would appreciate a prompt response outlining what steps Hyundai is willing to take to help resolve this issue. I have been a Hyundai owner in good faith, and I am disappointed that after spending hundreds of dollars on recommended repairs, my vehicle remains unresolved.

Filed Jun 26, 2026 · Engine · FL

My 2019 Hyundai Kona has been burning oil, I’ve done great upkeep on it, including topping the oil off in between services. This is because it obviously has been burning oil, well recently it started stalling, then starting/turning it over has been acting up. The RPM’s have not been stable at all an I’ve ran two diagnostic test on it, they came back as a “camshaft error” I can’t remember the exact code at the moment. However the mechanics I have questioned said it’s probably from the oil pressure being messed up from the oil burning up. Whether it be the sensor not regulating properly or the engine itself not getting enough lubricant. I have heard from others with Hyundais an it’s not just Kona’s, people are saying they burn through their oil fairly quickly compared to other cars they’ve had. With that being said, the car now stalls in traffic and the check engine light came on finally, that’s when we first ran diagnostics. Which I have had diagnostics ran at one place I go to for oil changes, a one at a Meineke, and soon to be a third at Autozone because I need to get the exact code again. I’m worried because my mom an I have been sharing this vehicle and the stalling makes it dangerous, it can be put in neutral and restarted but I have a service appointment with a dealership to see what they can do, however I feel this is happening from something caused straight from the manufacturer, not improper care or overuse. So I’m filing a complaint because if you stall while crossing traffic and could not restart, or know how to restart it, you could get in a wreck. This all seemed to start happening as well right after the vehicle rolled over 100,000 miles, go figure right? An if you needed to inspect this happening it would not be hard to do, all you would have to do is turn over the engine, then drive it for a bit an it will eventually stall, an you could also see the RPM’s bouncing and the noises it makes.

Filed Jun 16, 2026 · Engine · 113,000 miles · GA

The contact owns a 2019 Hyundai Kona. The contact stated that the vehicle had experienced excessive oil consumption. The contact stated that while driving 70 MPH on the highway, the vehicle stalled. The contact was unable to pull over to the side of the road. The contact was able to restart the vehicle and continued driving. The contact stated that the failure recurred while driving into a parking lot. The battery warning light illuminated on several occasions. Additionally, the contact stated that the check engine and low oil pressure warning lights were intermittently illuminated. The vehicle was taken to Auto Zone and to an independent mechanic, where it was diagnosed and determined that the piston oil ring failure had caused low oil pressure, which resulted in the timing failure. The failure was related to the federal safety agency Campaign Number: 21V301000 (ENGINE). The dealer and the manufacturer were notified of the failure but denied a loaner vehicle or towing assistance to the dealer located 75 miles away. The vehicle was not repaired. The failure mileage was approximately 113,000.

Filed Jun 9, 2026 · Engine · 100,000 miles · TX

The contact owns a 2019 Hyundai Kona. The contact stated that while driving on several occasions at various speeds, the AWD warning light illuminated and was reset each time the vehicle was restarted. The contact also stated that over a couple of months, while downshifting, stopping, or decelerating, the vehicle stalled on several occasions. Additionally, the contact stated that while driving at approximately 30 MPH, the Check Engine warning light illuminated. The vehicle was then taken to an AutoZone, where a handheld diagnostic machine retrieved diagnostic trouble codes: P0017 (crankshaft) and P0171 (system too lean), and it was observed that the oil reservoir was empty. Two quarts of oil were added to the vehicle. The contact stated that after being serviced, the vehicle was idling high and stalled while driving at unknown speeds on several occasions. The vehicle was taken to a dealer, where it was diagnosed with a sheared timing pin, and it was determined that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 100,000.