Recall 21V944 affects 2,679 2017-2019 Hyundai Ioniq Electric vehicles for unstable electrical grounding. Repair is free at any franchised Hyundai dealer.
Hyundai is recalling 2,679 2017-2019 Ioniq Electric vehicles because an unstable electrical ground can put the vehicle into fail-safe mode with reduced acceleration and power. Under certain conditions, it can accelerate after the gas pedal is released, which increases the risk of a crash; Hyundai dealers will complete the recall repair free of charge.
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What's wrong?
The affected 2017-2019 Hyundai Ioniq Electric vehicles use a Power Electric module to manage key electric-drive functions. That module contains the onboard charger, electric power control unit, drive motor, and reduction gear. Ground wiring gives those parts a stable electrical path to the vehicle frame so the control modules receive clean signals.
On these vehicles, the electrical ground can deteriorate and create electrical noise. That noise can disrupt the Controller Area Network, or CAN bus, which is the vehicle's message network for control modules. When communication is disrupted, the vehicle can enter fail-safe mode, reducing acceleration and power. In certain conditions, the vehicle can keep accelerating slowly after the accelerator pedal is released.
The warning sign is the EV READY lamp flashing as the vehicle enters fail-safe mode. If that happens, the vehicle is already reacting to the electrical fault.
Who's affected?
The affected 2017, 2018, and 2019 model years share two listed component areas: the electric propulsion system and the electrical system software.
| 2017 Hyundai Ioniq Electric | electric propulsion system |
|---|---|
| 2017 Hyundai Ioniq Electric | electrical system software |
| 2018 Hyundai Ioniq Electric | electric propulsion system |
| 2018 Hyundai Ioniq Electric | electrical system software |
| 2019 Hyundai Ioniq Electric | electric propulsion system |
| 2019 Hyundai Ioniq Electric | electrical system software |
| Units affected | 2,679 |
| Field incidents | NHTSA has logged no field incidents to date. |
Not every 2017-2019 Hyundai Ioniq Electric hatchback is on the list. Check your VIN to confirm whether your specific hatchback is included.
What's the safety risk?
Unexpected acceleration after you release the gas pedal increases the risk of a crash. If the EV "READY" lamp flashes and the vehicle enters Fail-Safe mode, ease out of traffic, stop in a safe place, and call the dealer before driving farther. Schedule the software update and ground-wiring repair soon. Repair is free at any franchised Hyundai dealer.
What should I do?
- Check your VIN to confirm your 2017-2019 Hyundai Ioniq Electric is included in this recall.
- Contact a franchised Hyundai dealer to schedule the free EPCU software update and ground-wiring repair that fixes the unstable electrical ground linked to fail-safe mode, reduced power, and acceleration after pedal release.
- Bring the recall notice if you have it. If not, reference recall number 21V944 and Hyundai recall 215 when you call.
- Drive cautiously until the repair is complete. Leave extra following distance and be ready for reduced power or acceleration after releasing the gas pedal.
What happens at the repair
At the dealer, a Hyundai technician updates the EPCU software and repairs the electrical ground wiring tied to this recall. The repair is available now, and the software update, wiring work, parts, and labor are free under the recall. If you've already paid out of pocket for a related repair, Hyundai's reimbursement plan covers eligible documented expenses. Bring receipts or repair paperwork to the service desk and ask how to submit the claim under Hyundai recall 215.
| Reimbursement | Reimbursement available |
|---|
Timeline
| December 7, 2021 | NHTSA published the recall |
|---|---|
| February 2, 2022 | Owner notification mailed |
| February 4, 2022 | Dealer notification began |
| February 4, 2022 | Dealer notification ended |
| February 4, 2022 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| February 4, 2022 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 21V944?
Recall 21V944 covers 2,679 2017-2019 Hyundai Ioniq Electric vehicles with an unstable electrical ground that can put the vehicle into fail-safe mode with reduced acceleration and power. Under certain conditions, the vehicle can accelerate after the gas pedal is released. Hyundai dealers will update the EPCU software and repair the ground wiring for free.
What should I do if my 2017-2019 Hyundai Ioniq Electric is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 21V944. If it is, contact a franchised Hyundai dealer to schedule the EPCU software update and ground-wiring repair. Reference recall number 21V944 or Hyundai recall 215 when you call. The repair is free.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost. Hyundai dealers will update the EPCU software and repair the affected ground wiring free of charge at any franchised Hyundai dealer.
What is the safety risk?
The safety risk is unexpected acceleration after the gas pedal is released. Hyundai says the unstable ground can trigger fail-safe mode with reduced acceleration and power, then allow acceleration under certain conditions. That can increase crash risk. The dealer repair addresses the software and ground-wiring problem.
When were Hyundai owners notified?
Hyundai mailed owner notification letters on February 9, 2022. If you bought the vehicle used or never received a letter, check your VIN to confirm whether your specific Ioniq Electric is included, then call a franchised Hyundai dealer or Hyundai customer service at 1-855-371-9460.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/21V944000 |
|---|---|
| Hyundai customer service | 1-855-371-9460 |
| NHTSA recall # | 21V944 |
| NHTSA recall # (full) | 21V944000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Quarterly Report (PDF)
- Download Recall Document (PDF) (PDF)
- Download Recall Investigation Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Owner Notice (PDF)
- Download Recall Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 20, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →