Certain 2022-2024 MY IONIQ 5 (NE1) and 2023MY IONIQ 6 (CE1) may have a condition of the power down warning light (turtle symbol) with "Power is limited" displayed in the cluster, and possible DTC P0A2F. If you are servicing a vehicle with either of these conditions, follow this bulletin to inspect the EOP.
full bulletin at NHTSA ↗2022 Hyundai Ioniq 5 powertrain problems
moderate 80 complaints filed with NHTSA · avg repair $2,500 · see powertrain across all vehicles →
Complaints
80
Recalls
0
Avg fix
$2,500
1crash
What stands out
Of the 4 model years of Hyundai Ioniq 5 we track for powertrain problems, this one carries the most owner complaints on file — 80.
Owners have filed 80 powertrain complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering powertrain on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
This updated Vehicle Control Unit (VCU) software package includes the following: ⢠Brake light logic update for regenerative braking. ⢠i-Pedal mode operation logic update. ⢠12V battery saver logic update allows charging from EV Battery as low as 10% SOC when parked. The Ioniq 5 update includes these earlier items that Ioniq 6 had included from start of production: ⢠EPB (Electronic Parking Brake) auto engagement when shift into Park/auto disengagement shift out of Park when shifting to D or R while brake pedal is engaged. ⢠DTE (Distance to Empty) strategy. ⢠Snow road surface performance. ⢠Air conditioning performance during AC slow charging. ⢠Enhance charging sequence.
full bulletin at NHTSA ↗Updated Vehicle Control Unit (VCU) software relating to the brake light logic for regenerative braking on certain IONIQ 5 Electric (NE1) & IONIQ 6 (CE1) vehicles is now available to improve the vehicleâs system logic and performance. An âOwnerâs Manual Supplementâ leaflet is also to be provided to 2022MY IONIQ 5 vehicle customers to explain the change & application of the Electronic Parking Brake (EPB) system of their vehicle.
full bulletin at NHTSA ↗This bulletin provides service information on how to inspect the charging port and if needed, replace any missing/damaged insulation cap(s) at the charging port on certain 2022-2023MY Ioniq 5 (NE1) and 2023MY (CE1) . The charging insulation caps are important to ensure proper charger connector orientation and fit to the vehicle charge port.
full bulletin at NHTSA ↗Certain IONIQ 5 (NE1) vehicles may experience an inoperative heater or air conditioning with one or more HVAC system related DTCs B169588, B160C88, and/or B183088. To correct this condition, follow the inspection diagnostics and repair procedure outlined in this bulletin.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The core issue: the ICCU fails unpredictably, often between 9,300 and 49,000 miles, sometimes weeks after recall software updates. When it fails, the vehicle either refuses to charge, loses all power while you're driving (dropping to 5–40 mph in traffic), or shuts down entirely. Owners report a distinctive "pop" or "thunk" sound preceding failure. Loss of propulsion on highways, narrow roads, and during rain has forced owners to navigate emergency stops in dangerous traffic.
Dealerships have attempted repairs via six separate recall campaigns (228, 997, 9A1, 9B5, 272, TCP), all involving software or firmware updates. None have stopped repeat failures. When ICCU hardware replacement is finally needed, the part is on indefinite backorder—waits of two weeks to six months are typical. One owner's vehicle sat undiagnosed at two different dealerships for over three months.
A secondary issue compounds the problem: dealerships repeatedly blame and replace the 12V battery instead of diagnosing the failing ICCU that caused its discharge. Some owners have had this battery replaced two to four times while the actual root cause remains unfixed.
Hyundai has denied Lemon Law claims despite documented repeat repairs and admitted ICCU defects. No permanent fix exists, parts are unavailable, and owners are left stranded or forced to pay for extended transportation and rental cars.
Same Hyundai Ioniq 5 powertrain reports on nearby years: 2023 · 2024 · 2025
Failure modes owners describe
ICCU failure with loss of propulsion while driving
The Integrated Charging Control Unit fails during operation, causing sudden and severe loss of motive power. Vehicles decelerate uncontrollably to 5–40 mph or come to complete stops, often in high-traffic or dangerous locations. A distinctive 'pop' sound frequently precedes or accompanies the failure.
When: Primarily between 12–54 weeks ownership, 9,300–49,000 miles; failures also reported after recall repairs and software updates
Symptoms owners cite: Sudden loss of propulsion or severe power reduction while driving; Vehicle deceleration to 5–40 mph regardless of throttle input; Distinctive 'pop' or 'thunk' sound from rear area; Dashboard warnings: 'Check Electric Vehicle System' or 'Stop Vehicle and Check Power Supply'; Loss of regenerative braking function; Inability to accelerate or respond to accelerator pedal
Codes mentioned: P1E1300 (AC Power Module Failure), P1A9096 (DC/DC Converter Fault), 12V battery voltage low codes
Repairs/costs cited: ICCU replacement required; parts frequently backordered for weeks to months. One case documented HV fuse (375F2-GI040-QQH) and AC power module replacement. Coolant (pink antifreeze, 00232-19098) also installed during one repair.
Recalls/TSBs owners mention: Recall campaigns 228, 997, 9A1, 9B5, 272 (24V868000), and others issued software/firmware updates. Hyundai denies ICCU replacement under warranty despite confirmed failures, citing missing error codes. Parts on indefinite backorder.
Charging system failure—inability to accept charge
Vehicle refuses to initiate or complete charging via Level 1 or Level 2 home chargers, or charging stops unexpectedly before reaching set limits. Charging port may fail to lock properly, creating electrical hazard during DC fast charging.
When: During ownership; failures reported before and after recall software updates
Symptoms owners cite: Charging stops at 60–61% capacity without cause; Vehicle fails to initiate charge after multiple attempts; House circuit breaker trips during Level 2 charging; 'Check EV System' warning appears when attempting to charge; Charging port does not lock during charging session; DC pin cover/cap not properly installed, leaving components exposed
Codes mentioned: P1E1300, P1A9096, Charging alarm detected via Bluelink app
Repairs/costs cited: ICCU replacement and HV fuse replacement required. Home charging equipment (Level 2 EVSE) damaged during failure (e.g., Grizzl-E unit with stuck relay). One owner reported EVSE failure and fuse replacement taking one week.
Recalls/TSBs owners mention: Recall 272 and others attempted software fixes; ineffective. ICCU replacement parts backordered indefinitely.
12V battery rapid discharge due to ICCU fault
The ICCU fails to properly charge the 12V battery from the high-voltage system, causing rapid and complete 12V battery depletion. Owners are repeatedly charged for 12V battery replacement when the root cause is ICCU malfunction.
When: Throughout ownership; accelerated in cold weather or extended parking periods
Symptoms owners cite: 12V battery completely discharged despite main battery having ample charge; No keyless entry or door unlock via fob; Dashboard and interior lights unresponsive; No power to electric door locks or windows; Vehicle unable to start despite high-voltage battery at 56–75% charge
Codes mentioned: 12V battery voltage low warnings, Codes indicating battery system failure (misdiagnosed as battery defect rather than ICCU fault)
Repairs/costs cited: Dealerships repeatedly replace 12V batteries (sometimes 2–4 times per owner) instead of diagnosing ICCU failure. Owners report $0–unspecified costs for unnecessary battery replacements while the actual ICCU remains unfixed.
Recalls/TSBs owners mention: Denies ICCU warranty replacement, insists on 12V battery replacement despite ICCU being confirmed as root cause. No acknowledgment of systemic diagnostic error.
Transmission/shifter control failure—inability to shift out of Park
Gear shifter becomes unresponsive, leaving vehicle stuck in Park. Vehicle cannot shift to Reverse, Drive, or Neutral, immobilizing it. One case involved unintended acceleration into a garage.
When: Early ownership (~494 miles); also reported after repair attempts
Symptoms owners cite: Shifter unresponsive when attempting to move from Park to Reverse or Drive; Shifter 'P' indicator remains lit despite attempts to shift; Multiple restart attempts required before shifter responds; Unintended acceleration while exiting vehicle (one case); Wheels remain locked during tow recovery
Codes mentioned: Shift control unit fault codes (specific recall update issued)
Repairs/costs cited: Shift control unit software update applied. One case involved collision repair and reimbursement by Hyundai after unintended acceleration incident.
Recalls/TSBs owners mention: Recall campaign issued for shift control unit software update. Hyundai eventually reimbursed owner for collision damage in one case.
Complete electrical system failure—loss of all 12V power
Total loss of electrical power while parked or at startup, leaving vehicle completely non-functional. No lights, displays, door locks, or electronic systems respond.
When: During ownership; often after vehicle sits overnight or is left plugged into charger
Symptoms owners cite: Vehicle does not unlock via key fob; physical key required; No power to gauges, center display, or interior lights; Dashboard flashing on and off with red 12V warning; All electrical systems unresponsive; Vehicle immobile and unable to be started
Codes mentioned: 12V system failure codes, ICCU fault codes (root cause)
Repairs/costs cited: Vehicle requires external jump assistance from mobile repair service. Owners stranded for days during weather emergencies.
Recalls/TSBs owners mention: Treated as battery issue; no acknowledgment of ICCU systemic failure.
Recall repair ineffectiveness—ICCU failure recurring after software updates
Multiple recall campaigns (228, 997, 9A1, 9B5, 272/24V868000) issued software or firmware updates intended to prevent ICCU failure. Despite these updates, ICCU failures continue in the same vehicles weeks to months after recalls are performed.
When: Failures occur within days to months following recall software installation; second and third failures reported on same vehicles
Symptoms owners cite: Vehicle performs normally after recall until sudden ICCU failure; Identical failure symptoms recur after 'fix' applied; Multiple software updates applied to same vehicle with no resolution
Codes mentioned: Same ICCU fault codes appear after recall repair
Repairs/costs cited: Software updates do not address root cause; hardware (ICCU) replacement ultimately required, but parts chronically unavailable.
Recalls/TSBs owners mention: Recall campaigns 228, 997, 9A1, 9B5, 272 (24V868000) attempted software fixes. Hyundai refuses ICCU hardware replacement, citing missing error codes. No acknowledgment that recalls have failed. Parts remain on indefinite backorder.
Delayed diagnosis and repair—extended dealership wait times
Vehicles sit at authorized dealerships for weeks to months without diagnosis or repair. Dealerships cite missing parts, technician availability, or external conditions (weather, jury duty) as reasons for delays.
When: From July 2025 through reported times; wait times of 3–6+ months documented
Symptoms owners cite: Vehicle unable to be repaired despite being at dealership; No communication or timeline provided by dealership or Hyundai corporate; Owners given conflicting excuses for delays
Repairs/costs cited: Parts backordered indefinitely; some dealers cite 2–3 week estimates but actual delivery unknown. ICCU part 36400-1XAA0-AQQH backordered.
Recalls/TSBs owners mention: Hyundai corporate provides inconsistent and misleading updates. No loaner vehicle or payment relief offered consistently. One case: vehicle at dealership July–October 2025+ without diagnosis.
Synthesized from 80 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 2 most recent
3rd ICCU failure. Was Driving and went into limp turtle mode. Was in a dangerous area for it to happen and took a while to get to a safe place.
Feared ICCU leaving us stranded after reading so many reported failures, took car to dealership where they inspected and did some ineffective software update, few weeks later experience EV warning light and sudden loss of power, car wont go more than 25 so we parked and were effectively stranded. Dealer suspects ICCU....great. exactly what we wasted time trying to prevent. A KNOWN PREDICATABLE…
Had powertrain trouble with your 2022 Hyundai Ioniq 5?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the powertrain problem on the 2022 Hyundai Ioniq 5?
It's a documented issue but not catastrophic. 80 complaints have been filed. Repairs average $2,500 and most owners catch it before it causes a breakdown.
At what mileage does the powertrain typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $2,500 for powertrain repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to powertrain?
No active recalls currently cover powertrain issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2022/Hyundai/Ioniq 5.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.