Diagsheet

2020 Hyundai Kona · symptom sheet

Engine stalls or loses power while driving

  • 56owner reports
  • 13,500median miles
  • $4,600median quote
  • 0involved a crash

Newest report Sep 29, 2026 · checked Oct 2, 2026

129 of the 160 complaints on this car are about the engine. 56 of those describe stalling, which makes it the most reported problem on the 2020 Kona.

1 recall on this systemcovering the 2020 model year
No crash reportedin 56 reports
1 firein 56 reports
NHTSA investigations2 covering the 2020

Tick what matches of 56 reports

24
7
34
14
1

Stalling on other Kona years

Report counts are for each model year on its own, so a newer car has had less time to collect them.

What this problem usually is

Stalling reports are some of the most alarming on the site. The engine quits while the car is moving, sometimes on a highway and sometimes at a stop. Many owners say it restarted right away and the dealer found no stored code, which is part of why these complaints pile up before anything gets fixed.

Read the full explainer · Which cars report it most

What got replaced

Owners who name the part that was replaced mention the engine (7 reports).

Recalls and investigations

One recall on the engine covers the 2020 model year. A recall on the same system isn't always the same failure, so read the defect text.

21V-301Apr 28, 2021
Engine

The piston oil rings may not have been properly heat-treated, which could result in engine damage.

Risk, remedy and owner complaints on recall 21V-301

All 2 recalls on the 2020 Hyundai Kona, with the owner complaints on each recalled system

NHTSA investigations into the engine on the Kona

DP22-005opened Jan 27, 2023
Electrical · model years 2019 to 2022

Pedestrian alert sounds. Closed aug 7, 2023, led to recall 22V-063.

DP22-003opened Sep 12, 2022
Engine · model years 2018 to 2022

Loss of motive power. Closed dec 12, 2023.

What owners paid

5 of the 56 reports quote a price. Each dot is one quote. The middle half runs $849 to $4,715.

$849$4,600$4,715
$0k$2k$4k$6k$8k

When it happens

The middle half of failures fell between 10,000 and 51,000 miles, from the 26 reports that gave a mileage.

Complaints by the year NHTSA received them: 2020: 1, 2021: 22, 2022: 5, 2023: 2, 2024: 4, 2025: 13, 2026: 91'2022'215'222'234'2413'259'26

Is this a known problem?

The manufacturer has sent NHTSA 1 service bulletin or notice for the 2020 Hyundai Kona that deal with this problem. Newest first.

Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.

What owners wrote

“Basically normal driving the car stalled. It slowed to a stall. I had to restart the car. This has happened a couple to times.”

Filed Apr 6, 2026

“The engine shut down when the car stops at a red light or stop sign. There are metal shavings in the oil due to issues with the pistons.”

Filed Oct 15, 2025

“I was driving when I heard a rattle below the car. About a mile later, my engine died. Turns out the oil plug fell out causing irreparable damage to my engine. Was fortunate to be able to coast down the bottom side of the bridge I was on to a safe spot off to the side.”

Filed Jul 3, 2025

“While driving the car it stalled and all dash lights came in. After about 20 mins it started back up and I proceeded down the road. After a few minutes the engine light came on blinking. I got the car to a local mechanic who placed it in the diagnostic machine. It came back code engine-pistons. I have a Hyandai 2020 Kona MPI-NU 2.0l engine but it was not included in the recall of the same vehicles.”

Filed Mar 16, 2025

Should you keep driving it?

This page can't tell you that. 0 of 56 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.

File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.

Guide Paid for this repair before a recall covered it? How recall reimbursement works

Other problems on this car