The Used Car Index

2021 Hyundai Kona problems

NHTSA lists 118 complaints for the 2021 Hyundai Kona, 2 of them mention a crash and 3 mention a fire. 3 complaints mention an injury, with 3 injuries and 0 deaths reported.

Data build 2026-10-09.

NHTSA lists this vehicle as HYUNDAI KONA.

At a glance

Complaints
118
With crash
2
With fire
3
With injury (complaints)
3
Injuries
3
Deaths
0
Recalls
1
Do not drive recalls
0
Park outside recalls
0
Recall potential units (maximum)
158,493
Investigations
1
Open investigations
0
Manufacturer communications
67

Complaints per 100k sold unavailable. No sales source is available for this record.

Where the complaints are

Top systems
SystemComplaintsShare of this vehicle's complaints
ENGINE7966.9%
UNKNOWN OR OTHER1815.3%
POWER TRAIN1411.9%
ELECTRICAL SYSTEM119.3%
FORWARD COLLISION AVOIDANCE43.4%
FUEL/PROPULSION SYSTEM43.4%
VEHICLE SPEED CONTROL43.4%
LANE DEPARTURE32.5%
SERVICE BRAKES32.5%
ENGINE AND ENGINE COOLING21.7%
Top subsystems
SystemSubsystemComplaints
FORWARD COLLISION AVOIDANCEAUTOMATIC EMERGENCY BRAKING3
LANE DEPARTUREBLIND SPOT DETECTION3
FORWARD COLLISION AVOIDANCEWARNINGS2
ELECTRICAL SYSTEMHORN1
EXTERIOR LIGHTINGHEADLIGHTS1
POWER TRAINAUTOMATIC TRANSMISSION1
STRUCTUREBODY1
TIRESSIDEWALL1
VISIBILITYWINDSHIELD WIPER/WASHER1

One complaint can name several systems, so shares can add to more than 100 percent.

Model-generated complaint tags

These labels are model-generated, not NHTSA data.

Failure modes
LabelCountShare of taggedMean confidence
mechanical failure4033.9%0.74
loss of control3731.4%0.76
electrical electronic119.3%0.73
unclear119.3%0.82
fire or overheating86.8%0.71
fluid or fuel leak65.1%0.69
visibility or lighting32.5%0.98
noise or comfort10.8%0.53
structural or corrosion10.8%1.00
Severities
LabelCountShare of taggedMean confidence
moderate7966.9%0.83
low2924.6%0.72
high65.1%0.71
critical32.5%0.72
none10.8%0.56

Model: typesafe/jev-1.13-20260917; schema version: tag-v1. 118 tagged complaints of 118 complaints (100.0%).

Confidence is the model's own probability for the label it chose (0 to 1), not accuracy.

Model-generated labels on tagged complaints only. Model years 2013 and newer are tagged in full; 2012 in part (see tagged_share); earlier model years have no tags. NHTSA's own flags remain separate in the complaints block.

Recalls

See new recalls and investigations this week.

1 recalls.

21V301000

Date: 2021-04-28. Systems: ENGINE.

Defect: Hyundai Motor America (Hyundai) is recalling certain 2019-2020 Elantra, 2019-2021 Kona and Veloster vehicles equipped with 2.0L Nu MPI engines. The piston oil rings may not have been properly heat-treated, which could result in engine damage.

Consequence: A damaged engine may stall, increasing the risk of a crash. In addition, oil may leak onto hot exhaust components, increasing the risk of a fire.

Remedy: Dealers will inspect and, if necessary, replace the engine, free of charge. In addition, Hyundai will deploy Piston Ring Noise Sensing System (PNSS) software. Owner notification letters were mailed August 24, 2021. Owners may contact Hyundai customer service at 1-855-371-9460.

Do not drive: No. Park outside: No.

Investigations

1 investigations; 0 open.

DP22005

Opened: 2023-01-27. Closed: 2023-08-07.

Pedestrian alert sounds

NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and ele

Systems: ELECTRICAL SYSTEM.

Linked campaign numbers: 22V063000.

Manufacturer communications

67 manufacturer communications.

Communications by system
SystemCount
ELECTRICAL SYSTEM33
EQUIPMENT14
ENGINE AND ENGINE COOLING7
STEERING6
AIR BAGS5
ENGINE4
POWER TRAIN3
SERVICE BRAKES3

11037496

Date: 2026-09-22. Type: Service Campaign. Systems: ENGINE.

Hyundai has become aware that certain Kona vehicles equipped with 1.6T-GDI engines may not meet engine-out NOx (Nitrogen Oxides) and Particulate Matter (PM) emission standards.

11036622

Date: 2026-08-21. Type: Service Campaign. Systems: ENGINE.

Certain Kona (OS) vehicles equipped with the 1.6T-GDI engine may exhibit elevated engine-out emissions that may not meet engine-out NOx (Nitrogen Oxides) and Particulate Matter (PM) emission standards. This bulletin provides the instructions to update the emission logic within the Engine Control Mod

11036623

Date: 2026-08-21. Type: Service Campaign. Systems: ENGINE.

Certain Kona (OS) vehicles equipped with the 1.6T-GDI engine may exhibit elevated engine-out emissions that may not meet engine-out NOx (Nitrogen Oxides) and Particulate Matter (PM) emission standards.

11032720

Date: 2026-05-16. Type: Warranty Program/Extension. Systems: UNKNOWN OR OTHER.

Certain 2021-2023 model year Kona, 2021-2023 model year Kona Electric, and 2022-2023 model year Kona N vehicles may experience an inoperable horn that may be caused by foreign substances causing internal parts to oxidize. At Hyundai, we are committed to providing vehicles of outstanding quality and

11031397

Date: 2026-04-18. Type: Warranty Program/Extension. Systems: UNKNOWN OR OTHER.

Some vehicles may have an inoperable horn that may be caused by foreign substances causing internal parts to oxidize. Hyundai is extending the warranty coverage for the horn replacement under this condition to 10 years or 120,000 miles from the date of original retail delivery or date of first use (

11031398

Date: 2026-04-18. Type: Warranty Program/Extension. Systems: UNKNOWN OR OTHER.

Some vehicles may have an inoperable horn that may be caused by foreign substances causing internal parts to oxidize. Hyundai is extending the warranty coverage for the horn replacement under this condition to 10 years or 120,000 miles from the date of original retail delivery or date of first use (

11031400

Date: 2026-04-18. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM, ENGINE.

Some vehicles may exhibit difficulty starting in cold weather. This bulletin provides the procedure to perform an inspection on the starter magnetic switch for potential freezing and, if necessary, replace the starter magnetic switch (solenoid) assembly.

11032522

Date: 2026-04-10. Type: Other. Systems: AIR BAGS.

The National Highway Traffic Safety Administration (NHTSA) has issued an urgent safety advisory regarding dangerous, counterfeit drivera side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. (DTN), that have been identified in U.S. vehicles following prio

11032523

Date: 2026-04-10. Type: Other. Systems: AIR BAGS.

The National Highway Traffic Safety Administration (NHTSA) has identified the presence of substandard and dangerous drivera s-side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. (DTN). These inflators were not supplied, approved, or authorized by the ve

11027047

Date: 2025-12-19. Type: Other. Systems: AIR BAGS.

A Class Action settlement regarding the TRW Airbag was recently decided. Based on the Class Action, customers are eligible for certain settlement benefits. Please see attached for details. Impacted vehicles are also noted below. For further information regarding settlement benefits and contacts, ple

Notes on this record

  • Complaints from the API and bulk file are merged and deduplicated by ODI number; the API alone misses records.
  • System and subsystem counts are numbers of distinct complaints, recalls or communications that name them. One record can name several systems, so shares across systems can add to more than 100 percent; a single share never exceeds 100 percent.
  • Recalls are counted once per campaign, investigations once per action and manufacturer communications once per NHTSA id, even when NHTSA lists several model names for the same record.
  • A sales denominator is a calendar-year proxy, not the population of vehicles still in use. Rates are copied from verified pipeline output.

Other names NHTSA uses

None listed.

Matched NHTSA models

Matched labels and complaints
NHTSA model labelComplaints
KONA118

Same model, other years

All model years | All Hyundai models

Other Hyundai models, 2021

Sources

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