2019 Hyundai Ioniq · Electrical & software
Electrical or software fault may disable vehicle functions
An unstable electrical ground may cause the vehicle to enter a fail-safe mode with reduced acceleration and power.
What the reviewed source says
Start with the documented condition, not a parts guess.
NHTSA campaign 21V944000 includes certain 2017 to 2019 Hyundai Ioniq vehicles. 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. Unexpected acceleration following gas pedal release can increase the risk of a crash.
Words owners may use
Does this match the moment?
Symptoms in the pattern
- Warning messages, a blank display, a no-start condition or loss of a vehicle function may occur
- An open campaign appears when the complete VIN is checked
- Some recalled vehicles may show no advance warning before the component fails
Vehicles and scope
- 2017 to 2019 Hyundai Ioniq
- NHTSA campaign 21V944000
- The manufacturer filing lists 2,679 potentially affected units across the complete campaign.
- VIN eligibility determines whether this recall applies to an individual vehicle
Manufacturer position
What the official procedure directs
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.
Safety recall eligibility is based on the VIN and campaign scope, not ordinary warranty mileage. Check the complete VIN even when the vehicle is outside its original warranty.
Original evidence
Open the documents behind this page.
Repair paths and safe checks
Separate the diagnosis from the action.
Use the official recall 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.
Do not buy parts from the campaign description alone. VIN scope, superseded remedies and parts availability can change.
What owners reported
Did this repair fix the same symptom on your car?
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Check the complete VIN before arranging work
Enter the 17-character VIN in NHTSA's recall lookup and ask the manufacturer or an authorised dealer to confirm whether the campaign is open for this vehicle.
A year, make and model match does not prove that every vehicle is included. The VIN result controls eligibility.
What owners reported
Did this repair fix the same symptom on your car?
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Useful before authorizing work
Read the method beside the problem
These guides explain the safety and evidence checks that apply to this problem file.
Check recalls by VIN
A VIN search checks the displayed NHTSA records for an unrepaired safety recall associated with one vehicle. A model search shows only the wider campaign population.
Read guide ↗When a car is unsafe
A warning light does not always mean the same thing, but weak brakes or smoke leave little room for experimentation. Damaged tires and certain recall instructions can do the same.
Read guide ↗Why symptoms overlap
“It makes a weird noise” is useful human language. Diagnosis begins when that language is tied to the exact vehicle and its operating conditions.
Read guide ↗More for this model
Other reviewed Hyundai Ioniq conditions
2020 Hyundai Ioniq · Electrical & software
High-voltage battery fire risk
The lithium-ion (Li-ion) battery may short-circuit.
2017 to 2018 Hyundai Ioniq · Transmission & drivetrain
Hybrid propulsion system may lose power
The Main Relay within the Power Relay Assembly (PRA) may have inadequate connections between its contacts, causing increased electrical resistance.
2017 to 2018 Hyundai Ioniq · Transmission & drivetrain
Hybrid propulsion system may lose power
The Power Relay Assembly (PRA) located underneath the rear seat may overheat.