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Electrical systems and batteries · UNITED STATES

21V944000: Unstable electrical ground may cause the vehicle to enter a fail-safe mode with reduced acceleration and power

HYUNDAI IONIQ ELECTRIC: check the listed vehicles, the reported issue and the manufacturer remedy for 21V944000. Keep the official status and service answers in one private record.

Official record checked 2026-10-19 UTC · Filing date 2021-12-07

Start with the specific vehicle

The report lists 3 model-year entries. Read the equipment and production restrictions in the reported issue, then use the official lookup or manufacturer to establish whether this campaign applies to your vehicle.

View the listed model years
  • 2019 HYUNDAI IONIQ ELECTRIC
  • 2017 HYUNDAI IONIQ ELECTRIC
  • 2018 HYUNDAI IONIQ ELECTRIC

Check your VIN on NHTSA →

Enter the VIN only on the official service or manufacturer site. This worksheet does not ask for it.

What the official report says

Hyundai Motor America (Hyundai) is recalling certain 2017-2019 Ioniq electric vehicles. An unstable electrical ground may cause the vehicle to enter a fail-safe mode with reduced acceleration and power. In certain conditions while in fail-safe mode, the vehicle may accelerate after the gas pedal is released.

Official NHTSA campaign record

Why the reported issue matters

Unexpected acceleration following gas pedal release can increase the risk of a crash.

Official NHTSA campaign record

Prepare your observation

Keep existing warnings or observations for service. This guide does not ask you to probe wiring, disconnect a battery or open a high-voltage assembly.

A reported defect describes the campaign. It does not establish what caused a symptom on your individual vehicle, and absence of a symptom does not establish that an open recall is complete.

The reported manufacturer remedy

Dealers will update the EPCU (Electric Power Control Unit) software and repair the ground wiring, free of charge. Owner notification letters were mailed February 9, 2022. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 215.

Official NHTSA campaign record

Confirm current remedy arrangements

The source does not explicitly establish current remedy availability. Ask the manufacturer about the applicable remedy, required parts or software, appointment arrangements and any interim instructions.

This describes the dated source record. Current arrangements for your VIN remain unconfirmed.

Additional official notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

View the source

Choose the next step from the official result

Not checked or unavailable

Keep eligibility unconfirmed. Use the official lookup or contact the manufacturer with 21V944000.

This campaign is open

Confirm current interim instructions, remedy availability and service arrangements. Keep the dated answer.

Not listed as open

Review earlier repair records and lookup limits if needed. A zero-open result does not explain an unresolved symptom.

Work order records recall work

Keep the campaign number, remedy and date together. Ask separately about a symptom that remains after the visit.

Your campaign-specific service questions

Use these questions with the official report. Keep the answers beside the remedy record; “discussed” records a conversation, not a completed repair.

  1. Does the manufacturer confirm that campaign 21V944000 applies to this VIN, including the report’s equipment and production restrictions?

    A matching model and year is only a starting point. The official lookup or manufacturer must establish the individual vehicle’s status.

  2. What remedy, required parts or software, and appointment arrangements are currently available for this VIN, and which interim instructions apply?

    The source does not explicitly establish current remedy availability. Ask the manufacturer about the applicable remedy, required parts or software, appointment arrangements and any interim instructions.

  3. Which electrical component or software function is covered, and what interim charging, parking or use instructions does the manufacturer give?

    Compare the answer with the reported components: ELECTRICAL SYSTEM:PROPULSION SYSTEM:CHARGING:MODULE:ONBOARD (OBCM); ELECTRICAL SYSTEM:SOFTWARE.

  4. Which module and software completion record demonstrate that the update for 21V944000 was applied?

    Ask the service provider how the campaign-specific software remedy is documented. A dashboard reset is not evidence of the specified update.

  5. What dated document records the remedy performed under 21V944000, and what should I do if the reported concern remains?

    Keep campaign completion and unresolved symptoms as separate questions. A saved worksheet or booked appointment does not establish a repair.

Download the full guide and blank worksheet

Source and lookup coverage

NHTSA 21V944000: official campaign data · Official lookup and coverage limits

The quoted issue, consequence and remedy come from the official record as checked above. This independent guide adds a vehicle-check decision process, service questions and a private worksheet. Confirm current eligibility, remedy availability and interim instructions with the manufacturer.

The official VIN lookup may omit completed recalls, some recent campaigns and recalls outside its coverage. Vehicle notes and answers stay in this browser. A downloaded brief contains your notes; keep it appropriately. Groundwork is independent of NHTSA and the manufacturer.