2021 Hyundai Kona Fuel system Problems
- Complaints
- 5about this part
- Share
- 4%of 120 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 5 complaints about the fuel system of the 2021 Hyundai Kona, 4% of the 120 complaints for this model year.
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.
“I have already replaced the transmission out of pocket 7k its began to do the same thing immediately was flushed a 2nd time and told it could be the motor. Also my battery i have bought 2 new batteries in 2 yrs now to find out its a false warning.”
NHTSA complaint #11730099, filed 2026-04“Over the last 2 1/2 months the car has shut off approximately 5 times while driving, without warning. Most instances have been while pulling into a parking lot, but one time (so far) it shut off while trying to back into my driveway. I'm fearful it will happen while on the freeway. I took it to the dealer, but there wasn't a fault code so they refused to look at it unless I left the car with them to drive, and wanted to charge me $45/day for a rental so I could get back & forth to work until it happened again while they were driving it.”
NHTSA complaint #11714551, filed 2026-01“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”
NHTSA complaint #11769182, filed 2026-10“Low speed hesitancy and shuddering. Car has lost power when driving at 55 mph. Car does not want to move at very slow speeds as in a parking garage. It hesitates and starts to roll backwards.”
NHTSA complaint #11747397, filed 2026-06Fuel system: other model years
Other parts of the 2021 Hyundai Kona
80 complaintsOther or unknown
19 complaintsTransmission and drivetrain
14 complaintsElectrical system
11 complaintsForward collision avoidance
5 complaintsBrakes
4 complaintsVehicle speed control
4 complaintsLane departure
3 complaintsEngine cooling
2 complaintsSteering
2 complaintsWheels
2 complaintsExterior lighting
1 complaints
← All problems reported for the 2021 Hyundai Kona
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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