Vehicle problem research

Hyundai Ioniq problems and repair guidance

Read 5 documented issue files for the Hyundai Ioniq, including symptoms, source-defined vehicle scope and the published repair or diagnostic steps. A matching model name does not diagnose your car or confirm VIN eligibility.

This profile contains problem research. Model-specific warranty cost estimates and aggregate NHTSA complaint counts are not included for this model.

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Hyundai Ioniq model-year research

Model-year coverage varies. Each page shows the available problem files and identifies whether warranty estimates and federal report counts are included.

Problem research and repair guidance

Hyundai Ioniq: symptoms, affected vehicles and documented fixes

Match the symptom and the exact vehicle scope before arranging work. These files preserve the FixCatalogue research, with the manufacturer position, safe checks and original evidence available here.

5documented issue files
3vehicle systems

5 recall files · 0 other manufacturer files. These are editorial file counts, not distinct campaign totals, failure rates or a complete recall history.

Electrical & software

Official safety recall2020Campaign 21V127000

High-voltage battery fire risk

The lithium-ion (Li-ion) battery may short-circuit.

NHTSA campaign 21V127000 includes certain 2020 Hyundai Ioniq vehicles. 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. An electrical short in the Li-ion battery increases the risk of a fire.

Symptoms to compare
  • Smoke, heat, a burning smell or a battery warning may accompany the condition
  • An open campaign appears when the complete VIN is checked
  • Some recalled vehicles may show no advance warning before the component fails

Other ways owners describe it: battery might catch fire; EV battery fire recall; burning smell from battery; smoke while charging; car gets hot while parked; battery warning before fire.

Which vehicles the source covers
  • 2020 Hyundai Ioniq
  • NHTSA campaign 21V127000
  • The manufacturer filing lists 4,696 potentially affected units across the complete campaign.
  • VIN eligibility determines whether this recall applies to an individual vehicle
  • NHTSA marks this campaign with a Park Outside advisory

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.

Component in the source: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY

Published recall remedy

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.

Use the official recall remedyAuthorised dealer · Confirm with VIN

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.

Limit: Do not buy parts from the campaign description alone. VIN scope, superseded remedies and parts availability can change.

Check the complete VIN before arranging workBasic check · 5 minutes

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.

Limit: A year, make and model match does not prove that every vehicle is included. The VIN result controls eligibility.

Evidence for this issue
Official safety recall2017, 2018, 2019Campaign 21V944000

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.

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.

Symptoms to compare
  • 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

Other ways owners describe it: dashboard lit up with warnings; car electronics stopped working; screen keeps rebooting; car will not start after update; electrical problem with no warning; software recall.

Which vehicles the source covers
  • 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

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.

Component in the source: ELECTRICAL SYSTEM:PROPULSION SYSTEM:CHARGING:MODULE:ONBOARD (OBCM)

Published 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.

Use the official recall remedyAuthorised dealer · Confirm with VIN

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.

Limit: Do not buy parts from the campaign description alone. VIN scope, superseded remedies and parts availability can change.

Check the complete VIN before arranging workBasic check · 5 minutes

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.

Limit: A year, make and model match does not prove that every vehicle is included. The VIN result controls eligibility.

Evidence for this issue

Tires & wheels

Official safety recall2019Campaign 19V720000

Tire or wheel failure may cause loss of control

The right-side rear wheel lug nuts may have been insufficiently tightened, allowing the wheel to detach from the vehicle.

NHTSA campaign 19V720000 includes certain 2019 Hyundai Ioniq vehicles. Hyundai Motor America (Hyundai) is recalling certain 2019 Ioniq Hybrid and 2020 Elantra vehicles. The right-side rear wheel lug nuts may have been insufficiently tightened, allowing the wheel to detach from the vehicle. A wheel detaching from the vehicle increases the risk of a crash.

Symptoms to compare
  • Vibration, pressure loss or visible damage may occur, although the condition can also appear without warning
  • An open campaign appears when the complete VIN is checked
  • Some recalled vehicles may show no advance warning before the component fails

Other ways owners describe it: tire keeps losing air; wheel feels loose; tire sidewall problem; car shakes at speed; TPMS warning keeps coming on; wheel recall.

Which vehicles the source covers
  • 2019 Hyundai Ioniq
  • NHTSA campaign 19V720000
  • The manufacturer filing lists 48 potentially affected units across the complete campaign.
  • VIN eligibility determines whether this recall applies to an individual vehicle

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.

Component in the source: WHEELS:LUGS/NUTS/BOLTS/STUDS

Published recall remedy

Hyundai will notify owners, and dealers will inspect and, if necessary, tighten the lug nuts, free of charge. The recall began November 15, 2019. Owners may contact Hyundai customer service at 1-800-251-0871.

Use the official recall remedyAuthorised dealer · Confirm with VIN

Hyundai will notify owners, and dealers will inspect and, if necessary, tighten the lug nuts, free of charge. The recall began November 15, 2019. Owners may contact Hyundai customer service at 1-800-251-0871.

Limit: Do not buy parts from the campaign description alone. VIN scope, superseded remedies and parts availability can change.

Check the complete VIN before arranging workBasic check · 5 minutes

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.

Limit: A year, make and model match does not prove that every vehicle is included. The VIN result controls eligibility.

Evidence for this issue

Transmission & drivetrain

Official safety recall2017, 2018Campaign 18V704000

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.

NHTSA campaign 18V704000 includes certain 2017 to 2018 Hyundai Ioniq vehicles. Hyundai Motor America (Hyundai) is recalling certain 2017-2018 Hyundai Ioniq Hybrid and 2018 Ioniq Plug-In Hybrid vehicles. The Main Relay within the Power Relay Assembly (PRA) may have inadequate connections between its contacts, causing increased electrical resistance. The increased electrical resistance can overheat the rear seat which is above the PRA, increasing the risk of a fire.

Symptoms to compare
  • A hybrid-system warning, reduced propulsion or a no-start condition may occur
  • An open campaign appears when the complete VIN is checked
  • Some recalled vehicles may show no advance warning before the component fails

Other ways owners describe it: hybrid system warning; hybrid car suddenly loses power; EV mode stopped working; car will not go ready; hybrid battery warning; propulsion system fault.

Which vehicles the source covers
  • 2017 to 2018 Hyundai Ioniq
  • NHTSA campaign 18V704000
  • The manufacturer filing lists 10,575 potentially affected units across the complete campaign.
  • VIN eligibility determines whether this recall applies to an individual vehicle

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.

Component in the source: HYBRID PROPULSION SYSTEM: INVERTER

Published recall remedy

Hyundai will notify owners, and dealers will inspect the Power Relay Assembly (PRA) for damage. If no damage is found, the main relay will be replaced. If damage is found, the PRA will be replaced.

Use the official recall remedyAuthorised dealer · Confirm with VIN

Hyundai will notify owners, and dealers will inspect the Power Relay Assembly (PRA) for damage. If no damage is found, the main relay will be replaced. If damage is found, the PRA will be replaced.

Limit: Do not buy parts from the campaign description alone. VIN scope, superseded remedies and parts availability can change.

Check the complete VIN before arranging workBasic check · 5 minutes

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.

Limit: A year, make and model match does not prove that every vehicle is included. The VIN result controls eligibility.

Evidence for this issue
Official safety recall2017, 2018Campaign 22V459000

Hybrid propulsion system may lose power

The Power Relay Assembly (PRA) located underneath the rear seat may overheat.

NHTSA campaign 22V459000 includes certain 2017 to 2018 Hyundai Ioniq vehicles. Hyundai Motor America (Hyundai) is recalling certain 2017-2018 Ioniq HEV and Ionic PHV vehicles previously recalled under recall number 18V-704. The Power Relay Assembly (PRA) located underneath the rear seat may overheat. An overheated PRA increases the risk of a fire.

Symptoms to compare
  • A hybrid-system warning, reduced propulsion or a no-start condition may occur
  • An open campaign appears when the complete VIN is checked
  • Some recalled vehicles may show no advance warning before the component fails

Other ways owners describe it: hybrid system warning; hybrid car suddenly loses power; EV mode stopped working; car will not go ready; hybrid battery warning; propulsion system fault.

Which vehicles the source covers
  • 2017 to 2018 Hyundai Ioniq
  • NHTSA campaign 22V459000
  • The manufacturer filing lists 10,575 potentially affected units across the complete campaign.
  • VIN eligibility determines whether this recall applies to an individual vehicle

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.

Component in the source: HYBRID PROPULSION SYSTEM: INVERTER

Published recall remedy

Dealers will inspect and replace the main relay or PRA, as necessary, free of charge. Owner notification letters were mailed August 23, 2022. Owners may contact Hyundai customer service at 1-855-371-9460.

Use the official recall remedyAuthorised dealer · Confirm with VIN

Dealers will inspect and replace the main relay or PRA, as necessary, free of charge. Owner notification letters were mailed August 23, 2022. Owners may contact Hyundai customer service at 1-855-371-9460.

Limit: Do not buy parts from the campaign description alone. VIN scope, superseded remedies and parts availability can change.

Check the complete VIN before arranging workBasic check · 5 minutes

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.

Limit: A year, make and model match does not prove that every vehicle is included. The VIN result controls eligibility.

Evidence for this issue

Confirm who pays before authorizing work

A recall remedy follows the campaign and VIN eligibility. A service bulletin provides diagnosis or repair instructions; it does not by itself promise payment. Manufacturer warranty extensions and support programs have their own conditions.

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Keep a current problem separate from future coverage

These files do not supply a shop quote. Ask for a diagnosis and written estimate, then check recall remedies or existing coverage. A new vehicle service contract generally excludes pre-existing conditions.

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Each file retains its original source review date. Historical remedy wording can change; check the current manufacturer notice and NHTSA VIN lookup for your vehicle. The separately dated NHTSA counts elsewhere on this page use a different dataset and scope.

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What can the data tell you about Hyundai Ioniq?

No model-specific individual-repair price keys are retained for Hyundai Ioniq in this library. Generic parts and labor estimates, public records and separate annual cost references may still be available.

Individual-repair price scopeGeneric inputs

Model-level range presence is a source-coverage check. It does not confirm that a repair fits every engine or model year.

EPA configuration matchNo confirmed match

An unmatched specification is an information gap. Do not borrow an engine or drivetrain from another year.

Documented repair pathsCheck the source

Recall and communication counts describe records. They cannot establish a breakdown probability or current VIN status.

Price-key audit reviewed October 12, 2026; EPA source snapshot 2026-08-07. Individual-repair ranges and annual repair-budget references are different datasets.