2020 Hyundai Ioniq Electric problems, complaints & recalls
Most-reported problem areas: Service Brakes (3) · Vehicle Speed Control (1) · Engine (1)
🧭 Reliability snapshot
Compared against other Hyundai Ioniq Electric model years — complaint volume vs the model's median year, recalls and severity. How we score →
Safety recalls (1)
Electrical System:propulsion System:traction Battery 2021-03-01 · campaign 21V127000 · 4,696 vehicles ⚠ PARK OUTSIDE
Defect: Hyundai Motor America (Hyundai) is recalling certain 2019-2020 Kona Electric and 2020 Ioniq Electric vehicles. The lithium-ion (Li-ion) battery may short-circuit.
Risk: An electrical short in the Li-ion battery increases the risk of a fire.
Fix: Owners are advised to park their vehicles outside and away from structures until the interim action is complete. Hyundai will notify owners, and as an interim action, owners have the option to follow provided instructions to perform a battery update through the vehicle's infotainment system or request a Hyundai dealer to provide the update. Once parts are available, dealers will inspect the Battery System Assembly (BSA), and replace it if necessary. Repairs will be performed free of charge.
Service bulletins (42)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Electrical System 2026-10-27 · 26-GI-003H · Service Bulletin/Repair Instructions
this bulletin provides information related to the navigation and head unit software changes introduced in the 2026 2nd navigation map and software update. the changes may vary depending on vehicle type, model, and navigation system. refer to the 2026 2nd navigation map and software update key improv
Fuel/Propulsion System 2026-09-09 · 9C5 OL · Service Campaign
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.
Fuel/Propulsion System 2026-08-17 · 26-01-065H DCS · Service Campaign
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 technical service bulletin (tsb) 26-01-065h to complete the bms software update.
Fuel/Propulsion System 2026-08-14 · 26-01-065H TSB · Service Campaign
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 this bulletin to complete the bms software update.
Fuel/Propulsion System 2026-08-13 · 26-01-065H DN · Service Campaign
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.
Air Bags 2026-04-10 · DTN DL · Other
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., ltd. (dtn). these inflators were not supplied, approved, or authorized by the vehi
Showing the 6 most recent of 42 bulletins. Search all of them free at nhtsa.gov.
What owners report
2025-01-08 · Vehicle Speed Control · 💥 crash“when approaching a turn, i let off the accelerator but the car didn’t stop accelerating. instead, it gently kept accelerating. i applied the brakes and the car started slowing down but not at the same rate i was applying brake pressure. therefore i floored the brakes to try coming to a complete stop. sadly, the cars abs system did not engage, half …”
2023-06-03 · Engine“refill coolant warning light intermittently signals ev battery coolant problem. hyundai dealer in fort wayne, in, topped off coolant. andrew service representative was informed of two youtube videos explaining recall due to defective coolant asc1 that crystalizes and/or becomes sludgy. video reported dealer changed old coolant with an upgraded c…”
2023-05-25 · Service Brakes“the hyundai ioniq 5 doesn't turn on its brake lights when you're using single-pedal driving, as shown in this youtube video: https://youtu.be/u0yw7x9u5tq?t=97 these should be recalled because you can bring the vehicle to a complete stop without the brakes turning on …”
2021-09-14 · Service Brakes“the regenerative brake system failed to operate as it normally does, and no indicator lights came on on the dashboard. this unexpected loss of braking force nearly caused me to hit the car in front of me. i had recently disengaged cruise control and was approaching a red light. i pressed my foot on the brake pedal and felt no response from the car…”
2021-09-10 · Service Brakes“this issue is easily repeatable, when braking if you hit a bump (pot hole, etc.) the braking power is greatly reduced & the brake pedal becomes almost impossible to push down to stop the car, making it very hard to stop even when not coming to an abrupt stop.…”
2021-06-21 · Electrical System“the traction battery on my ioniq 2020 went bad after 3 months. the diagnostic panel warned me of an electric issue and the range dropped drastically. the dealer changed the battery no questions asked. my vin wasn't part of the recall. i wonder if the recall should have included a broader range of vehicles.…”
2020-08-01 · Unknown Or Other · 6,800 mi“8-1-2020 hyundai motor america letter received that original window sticker had incorrect information and is not equipped with blind spot and rear cross traffic collision avoidance assist systems; however these vehcles are equipped with blind spot and rear cross traffic collision warning systems. how many other buyers were misled by the window sti…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.