The car has never been good on gas or changing gears when drive mode was changed to sport from the beginning. It would say 200 miles to drive I will drive 30 miles and it will go down to 130. Recently the engine light has come on the car stalls when going a very low speeds and appears to have problems changing gears. Now I am receiving a crankshaft position camshaft powertrain system code…
2021 Hyundai Kona powertrain problems
moderate 13 complaints filed with NHTSA · avg repair $2,500 · see powertrain across all vehicles →
Complaints
13
Recalls
0
Avg fix
$2,500
When does it fail?
Of the 13 powertrain complaints filed for the 2021 Hyundai Kona, here's the actual mileage breakdown — failures cluster heaviest at 75,000-100,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
No new NHTSA powertrain complaint has been filed on this vehicle in over 3 years — the issue may be aging out of the active population.
What owners are reporting 2 most recent
The contact owns a 2021 Hyundai Kona. The contact stated that while driving at an undisclosed speed, the vehicle downshifted unintendedly. The check engine warning light illuminated. The vehicle was able to restart; however, the failure recurred while driving. The vehicle was taken to an independent mechanic, where it was diagnosed that the transmission piston ring had failed. The mechanic…
Had powertrain trouble with your 2021 Hyundai Kona?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the powertrain problem on the 2021 Hyundai Kona?
It's a documented issue but not catastrophic. 13 complaints have been filed. Repairs average $2,500 and most owners catch it before it causes a breakdown.
At what mileage does the powertrain typically fail?
Based on the 13 complaints filed, powertrain issues most often appear around 96,000 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $2,500 for powertrain repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to powertrain?
No active recalls currently cover powertrain issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2021/Hyundai/Kona.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.