AI Damage2020 Hyundai Kona Electric reliability: common problems
Owners of the 2020 Hyundai Kona Electric filed 27 complaints with NHTSA, most often about electrical system and service brakes. The maker issued 52 service bulletins for this year. Details by component below, with sources.
Key figures
- Owner complaints
- 27
- involving a crash
- 1
- Technical service bulletins (TSB)
- 52
What fails most often
- 1 Electrical system 63% of all complaints
- 2 Service brakes 19% of all complaints
- 3 Forward collision avoidance 19% of all complaints
- 4 Powertrain 11% of all complaints
- 5 Fuel/propulsion system 7% of all complaints
- 6 Engine 4% of all complaints
- 7 Tires 4% of all complaints
- Electrical system: 17 complaints (63% of all); manufacturer bulletins for this component: 26.
- Service brakes: 5 complaints (19% of all); manufacturer bulletins for this component: 2.
- Forward collision avoidance: 5 complaints (19% of all), 1 of them with a crash reported by the owner.
- Powertrain: 3 complaints (11% of all); manufacturer bulletins for this component: 6.
- Fuel/propulsion system: 2 complaints (7% of all); manufacturer bulletins for this component: 4.
Symptoms owners describe
How many of the 27 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 17 | 0 | 26 |
| Service brakes | 5 | 0 | 2 |
| Forward collision avoidance | 5 | 1 | 0 |
| Powertrain | 3 | 0 | 6 |
| Fuel/propulsion system | 2 | 0 | 4 |
| Engine | 1 | 1 | 2 |
| Tires | 1 | 0 | 2 |
| Equipment | 0 | 0 | 9 |
| Steering | 0 | 0 | 8 |
| Engine and cooling | 0 | 0 | 4 |
| Air bags | 0 | 0 | 2 |
| Exterior lighting | 0 | 0 | 2 |
| Visibility | 0 | 0 | 2 |
| Structure | 0 | 0 | 1 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
It did significant damage to the front bumper of the car but the airbags did not deploy & my wife was not hurt. I am guessing that it will be several thousand dollars to repair.
Approximately 15 minutes after the warning appeared, as I attempted to exit the highway, the vehicle suddenly lost power and rapidly slowed. The vehicle came to a complete stop and could not accelerate, move forward, or reverse.
Two times on April 9, 2024 (and on at least 4 other occasions in 2023) while drive at approximately 45 miles an hour on a RI State highway at a safe distance from any care in front of me, my vehicle went into the fail-safe mode while I was driving causing a sudden significant loss of power to the car and it appeared…
I have been in complete control of the situations, but my car beeps it's warning, adds it's efforts and the brakes lock up with tires squealing, and we stop with plenty of space in between myself and the car in front of me. This usually happens in freeway traffic.
The car alarms went crazy and said "regenerative brake failure" which is fine and all, but why the hell would the regent failing impact my ability to stop entirely? I could not get the vehicle to respond by pumping the brakes, so I put my flashers on and rolled into a lot and thankfully didn't kill anyone.
at about 10 MPH or less, while still continuing to apply braking pressure by foot, the vehicle stops braking and a sudden acceleration kick occurs, propelling the vehicle forward an additional 10 feet or so, then the brake kicks in again.
215/55/R17 The N Priz AH8 tires are extremely slippery on wet pavement. Unless I drive exceptionally slow and cautiously, I could lose control of my Hyundai Kona Ev
The contact stated that after the recall repairs were performed and while starting the vehicle, the battery warning light illuminated. Additionally, the transmission failed to shift into gear as needed. The vehicle was towed to the dealer who diagnosed that the battery failed and needed to be replaced.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 6,893 of 32,257 model years in the NHTSA data (top 21% most complained about).
On average one model year of the Kona Electric has 19 complaints (8 years in the data). This year has 27, above average.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
- Forward collision avoidance. Radar and camera: calibration after bumper or windshield replacement.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Hyundai has determined that certain Kona Electric and Ioniq Electric vehicles are eligible for a BMS…
Hyundai has determined that certain Kona Electric and Ioniq Electric vehicles are eligible for a BMS software update. This update to the BMS software improves the system’s diagnostic capability.
- Certain Kona Electric (OS EV) and Ioniq Electric (AE EV) vehicles are eligible for a Battery Management…
Certain Kona Electric (OS EV) and Ioniq Electric (AE EV) vehicles are eligible for a Battery Management System (BMS) software update. This update to the BMS software improves the system's diagnostic capability. Follow…
- Certain Kona Electric (OS EV) and Ioniq Electric (AE EV) vehicles are eligible for a Battery Management…
Certain Kona Electric (OS EV) and Ioniq Electric (AE EV) vehicles are eligible for a Battery Management System (BMS) software update. This update to the BMS software improves the system’s diagnostic capability.
- Certain Kona Electric (OS EV) and Ioniq Electric (AE EV) vehicles are eligible for a Battery Management…
Certain Kona Electric (OS EV) and Ioniq Electric (AE EV) vehicles are eligible for a Battery Management System (BMS) software update. This update to the BMS software improves the system’s diagnostic capability. Follow…
- The National Highway Traffic Safety Administration (NHTSA) has identified the presence of substandard and…
The National Highway Traffic Safety Administration (NHTSA) has identified the presence of substandard and dangerous driver’s-side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co…
- The National Highway Traffic Safety Administration (NHTSA) has issued an urgent safety advisory regarding…
The National Highway Traffic Safety Administration (NHTSA) has issued an urgent safety advisory regarding dangerous, counterfeit driver‑side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety…
- This bulletin provides information regarding condensation related to the accumulated moisture in the…
This bulletin provides information regarding condensation related to the accumulated moisture in the headlamp, rear combination lamp, daytime running lamp (DRL), or fog lamp. This TSB illustrates the various causes of…
- This bulletin provides information related to the changes introduced in the 2025 1st Navigation Map and…
This bulletin provides information related to the changes introduced in the 2025 1st Navigation Map and Software Update. The changes may vary depending on vehicle type, model, and navigation system as described in this…
- Certain IONIQ Electric (AE EV) and Kona Electric (OS EV) vehicles may exhibit a restricted coolant flow…
Certain IONIQ Electric (AE EV) and Kona Electric (OS EV) vehicles may exhibit a restricted coolant flow condition, which may be accompanied by a warning message (e.g., Coolant Supplement, Refill Inverter Coolant) in…
- This bulletin provides information related to the changes introduced in the 2024 2nd Navigation Map and…
This bulletin provides information related to the changes introduced in the 2024 2nd Navigation Map and Software Update. The changes may vary depending on vehicle type, model, and navigation system. Refer to the 2024…
- Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink Service…
Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink Service functions. This may be due to an irregular disconnection on Verizon’s communication network. Follow the…
- Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink Service…
Some vehicles may exhibit a loss of connectivity or interruptions in the middle of using Bluelink Service functions. This may be due to an irregular disconnection on Verizon's communication network. If you are…
NHTSA lists 52 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2020 Hyundai Kona Electric?
Owner complaints to NHTSA most often mention: electrical system, service brakes, forward collision avoidance. Total complaints: 27. The most frequent symptoms in complaint texts: smoke, burning smell, fire (11%), loss of power / limp mode (7%), infotainment or screen glitches (7%).
How many service bulletins (TSB) were issued for the 2020 Hyundai Kona Electric?
NHTSA lists 52 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2020 Hyundai Kona Electric from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2020 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-06.