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Electrical systemPart report

2021 Hyundai Kona Electrical system Problems

Complaints
11about this part
Share
9%of 120 total for the year
Median mileage
23,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 11 complaints about the electrical system of the 2021 Hyundai Kona, 9% of the 120 complaints for this model year. Where a mileage was given, the median is 23,000 miles. 1 a fire, according to the filers.

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.

“About 2 weeks ago I tried to start my car and the dash board starting flickering and glitch. Roadside assistance said all I needed was a battery. I got a battery and everything seemed fine until today. My car is starting to do the same thing. When I looked up recalls my VIN doesnt match for a recall I think my car should be under. The Battery Charge Sysytem is failing I believe. I have videos.”

NHTSA complaint #11704777, filed 2025-12

“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

“When slowing down to a stop and im not completely stopped and then step on the gas the vehicle makes a winding noise and has no transmission engagement for several seconds so if im in s turning lane or even going forward when a street light turn green, there's been dozens of times where this happened and i need to let off the gas pedal slowing me down while e everyone else is gaining speed making them to jam on their breaks. I let the dealership know and their answer was just come to a complete stop, i was like during a green light? …”

NHTSA complaint #11540924, filed 2023-08

“The HVAC drainage system in my 2021 Hyundai Kona failed due to a clogged AC drain line, which led to water leaking into the cabin and mold growth. The dealer reported the drain was blocked by a spiderweb and that moisture had collected under the driver and passenger carpets. They unclogged the line, but did not inspect beneath the carpet or inside the HVAC system. Soon after, I experienced musty odors, asthma flare-ups, and headaches while driving. At-home mold tests under the passenger seat and footwell came back positive. White mold was also visibly growing under the carpet. …”

NHTSA complaint #11678261, filed 2025-08

“My car has approximately 14,000 miles on it and was purchased brand new. It still has 1,000 miles to go before the next servicing. Saturday I when driving approximately 40 miles an hour, the engine suddenly cut off and the car stopped in the middle of the road. I was able to start the car and drive for approximately 15 minutes before it slowed to 3mph and shut off again. I called the dealership where I purchased it and explained what happened. Initially they said they had not serviced the car in a year. I let the car sit for a day then checked all the fluids. …”

NHTSA complaint #11508959, filed 2023-02

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2026220%
2025932%
20243158%
20232639%
20222222%
2021119%
2020117%
2019189%
2018811%

Other parts of the 2021 Hyundai Kona

Engine
80 complaintsOther or unknown
19 complaintsTransmission and drivetrain
14 complaintsForward collision avoidance
5 complaintsFuel system
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 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