Hyundai Ioniq: Powertrain

Affects Hyundai Ioniq · 2017–2019 — about 3K vehicles.

The hazard

Issue: On certain Ioniq EV models, the vehicle could accelerate after the accelerator pedal is released. Note: This problem can only happen under certain conditions after the vehicle enters "fail-safe" mode. Safety Risk: A vehicle that continues to accelerate could create the risk of a crash. Corrective Actions: Hyundai will notify owners by mail and instruct you bring your vehicle to a dealer to update the electric power control unit (EPCU) software. The dealer will also add additional ground wiring between the drive motor/gear assembly and frame.

What to do

Contact your dealer; the remedy details were not included in the filing.

Critical — crash/injury risk now High — injury risk; see remedy Moderate — fix at next service Low — minor / informational