Leaking oil...burns exceptionally fast even with dealership services. Pistons not sealed, melts new spark plugs, misfire on cylinder 3
2020 Hyundai Kona
Owner reports · Recalls · Investigations
More warning signs than most Kona years
Owner complaints for the 2020 Hyundai Kona are substantially higher than the model-year median of 74.
About this comparison →How this year compares
Owner complaints by model year
Compare all Kona years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
47 reports with mileage · 111 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Engine. Review the 105 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Power Train. Review the 20 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 11 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
Power Train complaints
20 reportsI am filing a safety complaint against Scott Stark’s South Point Hyundai for selling me a vehicle with an active open safety recall, a blown transmission, an A/C failure, and a dry-rotted tire. Before returning the car for service under a promised 1,000-mile warranty, my sister, who has worked for Corporate Hyundai for 15 years,…
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I am filing a safety complaint against Scott Stark’s South Point Hyundai for selling me a vehicle with an active open safety recall, a blown transmission, an A/C failure, and a dry-rotted tire. Before returning the car for service under a promised 1,000-mile warranty, my sister, who has worked for Corporate Hyundai for 15 years, helped me conduct a full intake baseline inspection at her dealership. We performed a recorded 360-degree video inspection, took high-resolution photos of every square inch, and ran full computer diagnostics, which confirmed zero tool marks on any bolts under the hood or on the transmission, and all diagnostic readings were perfectly recorded. South Point Hyundai kept my vehicle for 10 days for repairs, making excuses about test drives and failing to find technicians. However, a hidden GPS tracker tucked deep under my passenger side carpet meticulously documented every single time the vehicle moved or remained completely stationary on their lot. Upon picking up the vehicle, my sister scanned the car immediately with her diagnostic computer. The readings are now completely erratic and all over the place compared to the baseline corporate readings we documented 10 days prior. Physical inspection reveals that bolts have been turned, internal components have been actively tampered with, and parts have been structurally altered. The evidence directly indicates that this dealership used my personal vehicle as an unauthorized parts donor vehicle to harvest components, severely compromising its mechanical integrity, structural reliability, and overall road safety. This severe tampering has left the vehicle completely unsafe to operate. We possess full video evidence, high-resolution photographs, GPS tracking logs, and comparative corporate Hyundai diagnostic data verifying this severe mechanical fraud. I have turned this info over to Corporate Hyundai, the DMV, and federal enforcement agencies due to safety risks.
The contact owns a 2020 Hyundai Kona. The contact stated that during a regular maintenance visit, the contact was informed that there was a leak coming from the front axle transfer case, which was initially unrepaired. The vehicle was subsequently taken to a dealer in Colorado, where the seal was replaced. However, while an oil …
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The contact owns a 2020 Hyundai Kona. The contact stated that during a regular maintenance visit, the contact was informed that there was a leak coming from the front axle transfer case, which was initially unrepaired. The vehicle was subsequently taken to a dealer in Colorado, where the seal was replaced. However, while an oil change service was being performed later, it was discovered that the failure recurred because the previous repair was performed incorrectly. The first failure was for an inoperable seal, and the second failure was due to an improper repair. The third inspection confirmed that the seal had not been installed correctly during the prior service. The dealer was notified of the failure. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 146,000.
My 2020 Hyundai Kona (VIN: [XXX] ) has a persistent engine stalling safety defect that matches Recall 203 (22-01-042H, NHTSA Campaign 21V301000 – Nu 2.0L Atkinson Engine Inspection and Replacement). The recall addresses improperly heat-treated piston oil rings causing cylinder bore scuffing, accelerated oil consumption, abnormal…
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My 2020 Hyundai Kona (VIN: [XXX] ) has a persistent engine stalling safety defect that matches Recall 203 (22-01-042H, NHTSA Campaign 21V301000 – Nu 2.0L Atkinson Engine Inspection and Replacement). The recall addresses improperly heat-treated piston oil rings causing cylinder bore scuffing, accelerated oil consumption, abnormal knocking, and potential engine stall while driving (increasing crash/fire risk).I first brought the vehicle to Corona Hyundai for repeated stalling while driving. They performed the recall vibration inspection and software update (Campaign 974), stated the test passed, and declared the vehicle "fixed", safe and "good-to-go" Immediately after pickup, the stalling returned worse: approximately 60-80 miles later on XX near the XXX exit (four-lane high-speed highway), the engine completely stalled at 65 mph while merging for an exit. This caused vehicles and semi-trucks behind me to swerve dangerously and very nearly collide with me. The vehicle stalled four more times on the way to my destination in [XXX] .I then took it to the nearest dealer, Carlsbad Hyundai for safety reasons. They performed the vibration inspection again, which also "passed," yet the real-world symptoms would continue unchanged: accelerated oil consumption (I monitor the dipstick and refill regularly), sputtering, knocking noises, and complete engine stalls (dozens of incidents, especially on local roads and turns). The vehicle remains undrivable due to imminent stall risk while moving and putting myself, my passengers and other commuters at high risk of severe injury or death.Both dealers and Hyundai Customer Care (Case #XXX) have refused further action, stating the vibration test passed, they cannot duplicate the concern, and no additional claim can be submitted for engine replacement. Hyundai's TSB [XXX] requires only the vibration inspection; engine replacement is authorized if "NO PASS" – no separate oil consumption test or monitored drive INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.
While driving under normal conditions, the vehicle’s dual-clutch transmission (DCT) failed to engage properly, causing a sudden and unexpected loss of propulsion. When the accelerator was pressed, the vehicle hesitated and did not respond as commanded, resulting in delayed or no acceleration. This occurred while driving in traff…
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While driving under normal conditions, the vehicle’s dual-clutch transmission (DCT) failed to engage properly, causing a sudden and unexpected loss of propulsion. When the accelerator was pressed, the vehicle hesitated and did not respond as commanded, resulting in delayed or no acceleration. This occurred while driving in traffic at approximately 30 mph while trying to acceletate to merge onto highway and has happened multiple times. In some instances, the vehicle appeared to remain in gear but would not accelerate, and in other instances the transmission disengaged before re-engaging unpredictably. This created an unsafe situation, as the vehicle could not maintain speed or merge safely, significantly increasing the risk of a collision, especially in traffic or at intersections. The issue occurred without sufficient warning and continues to happen intermittently during normal driving.The vehicle was inspected by a dealership, which stated the condition is related to a clutch issue within the dual-clutch transmission and acknowledged it is a known issue affecting this transmission. The dealership further stated the issue would not be repaired because the vehicle is out of warranty.
The timing system was repaired in February 2025. After similar symptoms of vehicle stalling, the check engine light came on Found a software update that needed to be completed to determine if engine needed replaced. Dealership has refused for seven weeks to complete the entire job of the update which includes running a diagnost…
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The timing system was repaired in February 2025. After similar symptoms of vehicle stalling, the check engine light came on Found a software update that needed to be completed to determine if engine needed replaced. Dealership has refused for seven weeks to complete the entire job of the update which includes running a diagnostic of codes. Instead, they have been arguing that the timing system needs replaced and not providing the codes from the safety software update. Obviously there's a much deeper issue if the timing system keeps breaking down.
The vehicle has ~51K miles. It has been maintained according to the manufacturer's recommended repair schedule. At low speeds (<10 mph) or when coming from a full stop the vehicle hard shifts. When driving up inclines at low speeds (<10 mph), the vehicle shakes and stutters on the verge of shutting off. This happened twice on [X…
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The vehicle has ~51K miles. It has been maintained according to the manufacturer's recommended repair schedule. At low speeds (<10 mph) or when coming from a full stop the vehicle hard shifts. When driving up inclines at low speeds (<10 mph), the vehicle shakes and stutters on the verge of shutting off. This happened twice on [XXX]. I experienced a full vehicle shut off on [XXX} while the vehicle was stationary, but shifted into drive . In August, the vehicle stuttered and shook before shutting off. I have reported three instances of this issue to my local Hyundai dealership. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Ignition, speed and driving halts. I've had this Kona repaired a couple years ago and it took about 6-8mos to get my vehicle back, the this year 2025 the vehicle again is giving me problems. I thought of applying the lemon law however the week of the 6-8months being in the repair shop, I got the vehicle back, and the owner(mr.…
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Ignition, speed and driving halts. I've had this Kona repaired a couple years ago and it took about 6-8mos to get my vehicle back, the this year 2025 the vehicle again is giving me problems. I thought of applying the lemon law however the week of the 6-8months being in the repair shop, I got the vehicle back, and the owner(mr. Crisostomo was very kind and understanding) so it made me be more patience nonetheless there's only so much he could do if he is not the one repairing the vehicle. I was offered carpets for my patience yet still have not gotten them and feel like a bother when I call to inquiry about them and it's not the service manager that I talk to , I feel otherwise. That could just be me, however I know good customer service if it's presence. For the actually year, I would need to check emails and records. But it's probably the year after so 2022 ( almost certain) now, This year, 2025.. I see that there is a recall that the dealership did not inform me. The vehicle is paid of last year, because I was going to relocate but that had changed. I found out about the recall cause my dad had died and step mother is using my other car so I'm using the Kona much more that 3 days a week. I keep dying out in one (1) day.. I died out twice. So I checked if there's a recall and there is. I would like my vehicle repurchased or credit for the amount purchased or I like a jeep 2 door ( is fine) as a recovery vehicle, thank you.
The engine on my 2020 Hyundai Kona failed suddenly while driving, causing complete loss of power. There were no warning lights until after the failure. The vehicle was towed to a Hyundai dealership. Initially, the dealership stated the failure was related to an open recall from 2021 and warned that repairs might not be covered …
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The engine on my 2020 Hyundai Kona failed suddenly while driving, causing complete loss of power. There were no warning lights until after the failure. The vehicle was towed to a Hyundai dealership. Initially, the dealership stated the failure was related to an open recall from 2021 and warned that repairs might not be covered because the recall had not been completed. I sent them a written request outlining both NHTSA Recall 21V-301 (federally mandated) and Service Campaign 974, asking for documentation supporting their diagnosis and any communications with corporate. This request was ignored. Afterward, the dealership said they would replace the engine, but upon completion they recommended replacing certain bolts and hoses at my expense ($849), claiming that if I declined, any future related repairs would not be covered. When asked why these parts were not included in the repair or how their condition would void future coverage, I was told they were “normal wear” items not covered under warranty. No documentation or policy basis was provided. When asked whether the repair was processed under Recall 21V-301 or Campaign 974, they stated it was not tied to either and was filed under the powertrain warranty without corporate involvement. Multiple shop personnel had earlier confirmed verbally that the failed part matched the recall defect, but the service manager provided a different explanation and refused supporting documents. The dealership also claimed Recall 21V-301 was “completed” in October 2021 via a software update, despite the vehicle never having been at the dealership since purchase. No proof of recall completion or CNDS software installation was provided. The lack of evidence that Recall 21V-301 was properly remedied, the possibility of an improper closure in Hyundai’s system, and the fact that the failure matched the recall defect raise serious concerns about compliance with federal recall requirements. I am waiting for corporate to contact me also.
My vehicle has a very rough idle-vibrating at idle or stopped and not shifting properly-gear slipping. There is sluggish acceleration or jerking and the problem worsens while at a stop light/stop sign or at times when making a turn. The RPM goes between 200-300 when I accelerate to go from a stop and the car revs as it slowly h…
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My vehicle has a very rough idle-vibrating at idle or stopped and not shifting properly-gear slipping. There is sluggish acceleration or jerking and the problem worsens while at a stop light/stop sign or at times when making a turn. The RPM goes between 200-300 when I accelerate to go from a stop and the car revs as it slowly hits 20 mph and then jerks into the 30-40mph on the streets. I took it to the dealer January 2025 where they could not duplicate the concern, and all they did was a TCM judder improvement update for the DCT. The problem was dismissed as being an issue associated with the DCT and was told that unless a warning light turned on or my car broke down on me, they couldn't do anything more. The service representative advised that if I am in stop and go traffic and the car starts vibrating or shaking, I should pull over the side and turn off the car for a few minutes before continuing on my way. It has been less than 2 months and I have to take it back to the dealer so they can run diagnostics on it again. Same issues, no warning lights on the dashboard indicating there is a problem, but I am not comfortable driving the car anymore.
Official recalls
221V301000 · Engine
Apr 28, 2021
Hyundai Motor America (Hyundai) is recalling certain 2019-2020 Elantra, 2019-2021 Kona and Veloster vehicles equipped with 2.0L Nu MPI engines. The piston oil rings may not have been properly heat-treated, which could result in engine damage.
Consequence & remedy
Consequence: A damaged engine may stall, increasing the risk of a crash. In addition, oil may leak onto hot exhaust components, increasing the risk of a fire.
Remedy: Dealers will inspect and, if necessary, replace the engine, free of charge. In addition, Hyundai will deploy Piston Ring Noise Sensing System (PNSS) software. Owner notification letters were mailed August 24, 2021. Owners may contact Hyundai customer service at 1-855-371-9460.
20V022000 · Equipment:other:labels
Jan 17, 2020
Hyundai Motor America (Hyundai) is recalling certain 2020 Kona vehicles. The certification label may indicate incorrect Gross Axle Weight Rating (GAWR). As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numbers 567, "Certification" and 110, "Tire Selection and Rims."
Consequence & remedy
Consequence: An incorrect GAWR could result in the vehicle being overloaded, increasing the risk of a crash.
Remedy: Hyundai will notify owners, and dealers will install new label stickers displaying the correct GAWR over the affected areas of the certification label, free of charge. The recall began March 2, 2020. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 187.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
2DP22005 · Pedestrian Alert Sounds
Opened Jan 27, 2023 · Closed Aug 7, 2023
Status: closed (inferred from source dates) · Electrical System:propulsion System
NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight rating of 4,536 KG or less or are defined as low-speed vehicles. The standard became fully applicable to all such vehicles manufactured on or after March 1, 2021.On January 27, 2023, NHTSA opened Defect Petition (DP) 22-005 to evaluate the subject matter described in the petition. On June 24, 2023 and as supplemented on June 25, 2023, the petitioner notified NHTSA he was withdrawing his petition. The petitioner indicated that, based on his review of data, there is no justification for asserting potential benefits that could be derived from actions sought by my petition. Based on the petitioner's withdrawal, DP22-005 is closed. Closure of this DP does not represent a determination by NHTSA regarding the subject matter of the petition.
DP22003 · Loss Of Motive Power
Opened Sep 12, 2022 · Closed Dec 12, 2023
Status: closed (inferred from source dates) · Engine
The National Highway Traffic Safety Administration (NHTSA) received a letter dated July 13, 2022, petitioning the Agency to initiate a safety defect investigation into loss of motive power allegations attributed to oil drain pan assembly failures on certain Hyundai Motor America, Inc. and Kia America, Inc. vehicles spanning Model Years (MY) 2005-2021. The Petitioners cited examples of complaints indicating that the subject vehicles were experiencing rapid loss of engine oil due to oil drain plug back outs, resulting in loss of motive power and/or catastrophic engine damage. Additional complaints were provided which alleged that the oil drain pans lack sufficient structural integrity and are susceptible to cracking. The petition itself can be reviewed at NHTSA.gov under ODI number 11481745. On September 12, 2022, the Office of Defects Investigation (ODI) opened Defect Petition (DP22-003) to evaluate the Petitioners’ request. The Petitioners have provided additional complaints within four supplemental letters dated January 31, 2023, March 21, 2023, May 23, 2023, and August 4, 2023. ODI’s evaluation included the review and analysis of the complaints and supporting information submitted by the Petitioners, as well as additional complaints submitted directly to NHTSA which referenced either the oil drain plug or a crack in the oil pan. After reviewing the available data, ODI has not identified evidence that would support opening a defect investigation into the oil drain pan assemblies of the subject vehicles. Based on a review of the available information, a loss of motive power resulting from an oil drain plug back out has not occurred between the initial sale of a vehicle and the completion of its first oil change. If during an oil change service, a technician fails to remove the existing drain plug gasket before installing a new gasket, it is likely that a proper seal between the drain plug and the oil pan will not be made. An improper seal between the drain plug and oil pan could lead to the backing out on the drain plug, resulting in the sudden loss of oil while driving. Additionally, the provided examples of oil pan cracks were localized to the immediate vicinity of the oil drain plug and/or appeared to be the result of direct-contact with a tool during servicing. There is no information to support that a vehicle-based defect exists relating to the oil pan assembly, and instead the documented incidents are related to the failure to follow the proper maintenance procedures during oil change service. In October 2023, Hyundai published a Technical Service Bulletin (TSB) that provided detailed instructions for oil change service on its gasoline powered vehicles, specifically highlighting the need to remove and replace the existing drain plug gasket prior to reinstalling the drain plug. After a thorough review of the material submitted by the petitioner, the information already in NHTSA's possession, and the potential risks to motor vehicle safety implicated by the petitioners' allegations, NHTSA does not believe that a formal investigation is warranted. Therefore, the petition is denied. A Federal Register Notice (FRN) further detailing NHTSA’s reasons for denial of the petition will be published. The reference numbers for the complaints to NHTSA cited by the petitioner can be found in the petition submission documents in the public file for DP22-003. To review those complaints and the additional complaints ODI added to its evaluation which are cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.
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