2018 Hyundai Kona Engine cooling Problems
- Complaints
- 3about this part
- Share
- 4%of 75 total for the year
- Median mileage
- 97,372miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the engine cooling of the 2018 Hyundai Kona, 4% of the 75 complaints for this model year. Where a mileage was given, the median is 97,372 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The contact owns a 2018 Hyundai Koa. The contact stated that while the daughter was driving the vehicle began to sputter and jerk before stalling. During the failure the oil warning light flashed off and on. The vehicle was towed to the local dealer who diagnosed that the engine had failed due to carbon buildup. The contact was advised that the engine needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure but no assistance was offered. …”
NHTSA complaint #11736103, filed 2026-05, 90,000 miles“The contact owns a 2018 Hyundai Kona. The contact stated while her daughter was driving at undisclosed speeds, the engine warning light illuminated. There was an abnormal knocking sound coming from the vehicle. The vehicle was taken to an independent mechanic, who determined there was knock in the cylinder. The vehicle was taken to the local dealer, where it was determined that the cam was overworked and both cams had overproduced. Additionally, there was a misfire in cylinders number 1, 2, and 4. …”
NHTSA complaint #11621176, filed 2024-10, 104,745 milesRelated service bulletins
- 10247189Oct 13, 2023This bulletin provides important checkpoint guidelines when performing engine oil and filter change services.
- 10230907Jan 26, 2023Certain 2018-2022MY Kona (OS) vehicles equipped with 2.0L engines and 4WD may exhibit transfer case oil leaks and/or an oil smell caused by the transfer case pinion oil seal…
- 10217251Jul 28, 2022Follow the guidelines outlined in this bulletin to inspect and clean or replace certain components of the engine intake system accordingly during engine short block or…
- 10190044Mar 30, 2021This bulletin provides the service procedure for engine connecting rod bearing clearance testing. Perform the procedure outlined in this bulletin to fulfill the Bearing Clearance…
- 10189989Mar 10, 2021This bulletin provides the inspection procedure and repair guidelines for certain vehicles listed below.
- 10178182Jul 23, 2020This bulletin provides information related to the Engine Control Module (ECM) software logic update for DTC P0300-P0304 Misfire. This update addresses the intermittent misfire…
- 10177129Jun 9, 2020This bulletin provides information related to the Engine Control Module (ECM) software logic update for DTC P0300-P0304 Misfire. This update addresses an incident of intermittent…
- 10143791Jul 18, 2018If you are servicing an applicable vehicle with a Check Engine light on and one or more of the DTC listed below, follow the repair procedure and replace the oil pressure harness.
- 10143793Jul 10, 2018If you are servicing an applicable vehicle with a complaint of ?Check Engine Light on? and one or more of the DTC listed below, follow the repair procedure and replace the…
- 10133165Mar 21, 2018Hyundai Motor America is conducting a Service Campaign to the ECM software to update the cruise control setting logic on certain 2018 Model Year Kona equipped with 1.6T-GDI…
Engine cooling: other model years
Other parts of the 2018 Hyundai Kona
42 complaintsOther or unknown
25 complaintsTransmission and drivetrain
11 complaintsElectrical system
8 complaintsFuel system
4 complaintsExterior lighting
3 complaintsForward collision avoidance
3 complaintsBody and structure
3 complaintsVehicle speed control
3 complaintsVisibility (wipers, defrost, mirrors)
3 complaintsAir bags
2 complaintsBack-over prevention (rear camera)
1 complaints
← All problems reported for the 2018 Hyundai Kona
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology