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Hyundai · Known Issues

2023 Hyundai Ioniq 5 Problems: 11 Known Issues

2023 model year · 3,000+ owner reports · Updated September 2026

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Issue summary

According to Au7o's analysis of 3,000+ owner reports, the 2023 Hyundai Ioniq 5 has 11 documented known issues, with 1 rated critical. The most serious is ICCU Failure Causing Loss of Drive Power / 'Turtle Mode' / No DC Fast Charge. The most commonly reported issue is 12V Auxiliary Battery Drain / Dead Battery with 1,200 owner reports. Across all issues with published estimates, repair costs range from $100 to $3,000. DIY maintenance guides at au7o.io.

In This Article

  • Ioniq 5 Electrical5
  • Ioniq 5 Cooling1
  • Ioniq 5 Drivetrain1
  • Ioniq 5 Suspension1
  • Ioniq 5 Body/Panels1
  • Ioniq 5 Exterior1
  • Ioniq 5 Safety/Recalls1
  • Recalls14
  • FAQ
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In This Article

  • Electrical5
  • Cooling1
  • Drivetrain1
  • Suspension1
  • Body/Panels1
  • Exterior1
  • Safety/Recalls1
  • Recalls14
  • FAQ

All 11 Known Issues

NHTSA Recalls14 recalls

ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY

Hyundai Motor America (Hyundai) is recalling certain 2025-2026 IONIQ 5 and 2026 IONIQ 9 vehicles. The high voltage battery system may contain an improperly tightened bus bar, which can cause a short-circuit.

Campaign #26V06800006/02/2026

SUSPENSION:CRITICAL FASTENERS

Hyundai Motor America (Hyundai) is recalling certain 2025 IONIQ 5 electric vehicles. Certain rear suspension alignment adjustment bolts may have been improperly tightened, which can cause a loss of vehicle stability control.

Campaign #25V60500012/09/2025

SERVICE BRAKES, HYDRAULIC:POWER ASSIST:ELECTRIC:CONTROL MODULE:SOFTWARE

Hyundai Motor America (Hyundai) is recalling certain 2025 Hyundai IONIQ 5 "N" vehicles equipped with left-foot braking (LFB) and N e-shift features. The integrated electronic brake (IEB) and vehicle control unit (VCU) software may cause reduced braking performance when LFB is activated. Additionally, the vehicle may continue to accelerate after the pedal is released and the vehicle's N e-shift feature is engaged.

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Other Hyundai Models

Hyundai Elantra42Hyundai Sonata31Hyundai Tucson23Hyundai Veloster22Hyundai Palisade19Hyundai Santa Cruz17

Frequently Asked Questions

What are the most common Hyundai Ioniq 5 problems?

According to Au7o's analysis of 3,000+ owner reports, the 2023 Hyundai Ioniq 5 has 11 documented issues. The most frequently reported are: ICCU Failure Causing Loss of Drive Power / 'Turtle Mode' / No DC Fast Charge, 12V Auxiliary Battery Drain / Dead Battery, Infotainment System Crashes / Dual Screen Black Out. Of these, 1 is rated critical and should be addressed promptly.

Is the Hyundai Ioniq 5 reliable?

The 2023 Hyundai Ioniq 5 has 11 known issues documented across 3,000+ owner reports. 1 issue is rated critical: ICCU Failure Causing Loss of Drive Power / 'Turtle Mode' / No DC Fast Charge. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Hyundai Ioniq 5 problems?

Repair costs for known Hyundai Ioniq 5 issues range from $0 to $3,000, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2022-2024 Hyundai Ioniq 5 ICCU Failure Causing Loss of Drive Power / 'Turtle Mode' / No DC Fast Charge?

The Integrated Charging Control Unit (ICCU), which houses the DC-to-DC converter that keeps the 12V battery charged from the high-voltage pack, can suffer overvoltage and thermal overload that blows its internal 12V-feed fuse. When it fails the car may refuse to DC fast charge, c… Severity: high.

What is the 2022-2025 Hyundai Ioniq 5 12V Auxiliary Battery Drain / Dead Battery?

The Ioniq 5 suffers from 12V auxiliary battery drain, often leaving the vehicle unable to start. The issue is caused by excessive parasitic draw from always-on systems (telematics, Bluelink) and the 12V battery being undersized for the electrical load. The AGM battery used is mor… Repairs typically run $0-$300. Severity: medium.

Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.

Data sourced from 3,000+ owner reports, NHTSA recalls, TSBs, and automotive forums.

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ALL YEARS2025202420232022

On the 2022-2024 Hyundai Ioniq 5, the Integrated Charging Control Unit (ICCU), which houses the DC-to-DC converter that keeps the 12V battery charged from the high-voltage pack, can suffer overvoltage and thermal overload that blows its internal 12V-feed fuse. When it fails the car may refuse to DC fast charge, charge slowly, drop into reduced-power 'turtle mode' on the highway, or lose all motive power and need a tow. NHTSA recall 24V-204 (March 2024, ~99K vehicles) was followed by a January 2025 expansion covering ~145K vehicles after failures recurred on remedied cars.

This issue also affects: Genesis GV70, Hyundai Ioniq 6

Common Symptoms

  • Sudden loss of drive power / 'turtle mode' warning while driving
  • Repeated dead 12V battery / car won't power on or boot
  • Vehicle won't DC fast charge or charges far slower than rated
  • Loud popping/bang from front during charging followed by warning lights
  • Car stranded and requires a tow out of limp-home mode

How to Fix

Covered by NHTSA recall: dealers check for DTC P1A9096 — if absent they apply an ICCU software update to reduce overvoltage stress; if present they replace the ICCU and its fuse, flush/refill coolant, and install updated software, free of charge. Owners reporting recurrence after the software-only fix have driven ongoing litigation and the January 2025 follow-up campaign.

Research This Issue

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Community Reported
High ConfidenceVerifiedReviewed Jun 2026
Community reported
1,200 owners

On the 2022-2025 Hyundai Ioniq 5, the Ioniq 5 suffers from 12V auxiliary battery drain, often leaving the vehicle unable to start. The issue is caused by excessive parasitic draw from always-on systems (telematics, Bluelink) and the 12V battery being undersized for the electrical load. The AGM battery used is more sensitive to deep discharge cycles than conventional batteries.

This issue also affects: Kia Carnival, Kia EV9, Kia Sportage

Common Symptoms

  • Vehicle won't start (12V dead)
  • Dashboard warning about 12V battery
  • Bluelink/remote features stop working
  • Clock resets after parking overnight
  • Have to jump-start the vehicle

How to Fix

Hyundai released a software update (OTA or dealer-installed) to improve 12V battery charging management. If the battery has been deeply discharged multiple times, it may need replacement (AGM Group 47, $200-300). Keep the vehicle plugged in when parked for extended periods, as the main battery charges the 12V battery. Disable Bluelink remote features if not needed.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • OPTIMA YellowTop DH5 Group 47/H5 AGM 12-volt battery
    OEMOPTIMA DH5 / AutoZone SKU 1340240

    replacement auxiliary battery after the existing battery fails a proper test and ICCU/parasitic-draw faults are addressed Fitment/availability: AutoZone catalogs Group 47/H5 batteries for 2022-2024 U.S.-market Hyundai Ioniq 5. DH5 is AGM…

    AutoZone

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Owner tips & cautions

  • TipKeep the vehicle plugged in when parked for more than 2 days - the main battery will maintain the 12V battery charge
  • TipDisable Bluelink remote access and scheduled charging in the app if you park the vehicle for extended periods
Typical repair cost:$0 - $300

Research This Issue

Based on 1,200 owner reports

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Community Reported
High ConfidenceVerified1,200 owner reportsLast reported by owners Feb 2025Reviewed Feb 2026
Community reported
680 owners

On the 2022-2025 Hyundai Ioniq 5, the dual 12.3-inch screen infotainment system in the Ioniq 5 is prone to freezing, going black, and rebooting while driving. The issue affects navigation, climate controls (which are screen-only), and the digital instrument cluster. Loss of the driver display while driving is a safety concern. Multiple OTA updates have been released to address stability.

This issue also affects: Hyundai Palisade, Kia K5, Hyundai Santa Cruz

Common Symptoms

  • Both screens go black simultaneously
  • Infotainment reboots while driving
  • Climate controls unresponsive (touchscreen only)
  • Navigation crashes mid-route
  • Instrument cluster flickers

How to Fix

Ensure the latest OTA software update is installed (check in Settings > General > Software Update). A manual reset can be performed by pressing and holding the power button on the center display for 10 seconds. If issues persist after the latest update, the head unit or display may need hardware replacement ($1,500-3,000 at dealer). Most cases are resolved by software.

Owner tips & cautions

  • TipAlways accept OTA updates promptly - Hyundai has been actively fixing infotainment bugs with each release
  • TipIf the display goes black while driving, press and hold the power button for 10 seconds - the system will restart in about 30 seconds
  • WarningFile a NHTSA complaint if the instrument cluster goes blank while driving - this is a safety issue that Hyundai needs to track
Typical repair cost:$0 - $3,000

Research This Issue

Based on 680 owner reports

GoogleRedditYouTubeNHTSA
Community Reported
High ConfidenceVerified680 owner reportsLast reported by owners Feb 2025Reviewed Feb 2026
Community reported
290 owners

On the 2022-2024 Hyundai Ioniq 5, the motorized charge port door on the Ioniq 5 can fail to open or close, preventing charging. The electric motor actuator or its wiring fails, especially in cold weather. Some owners report the door freezing shut in winter. The door can sometimes be manually released with a pull-tab inside the cargo area.

This issue also affects: Kia EV6

Common Symptoms

  • Charge port door won't open via button
  • Door opens but won't close
  • Error message when trying to charge
  • Door stuck in cold weather
  • Clicking noise from charge port area

How to Fix

In an emergency, use the manual release pull-tab located inside the rear cargo area (driver side). The charge port door motor assembly replacement costs $200-400 at the dealer. Apply silicone spray to the door seal to prevent freezing in winter. Hyundai has replaced charge port assemblies under warranty for early failures.

Owner tips & cautions

  • TipKnow where the manual release tab is BEFORE you need it - it is inside the rear cargo area on the driver side behind a small cover
Typical repair cost:$0 - $400

Research This Issue

Based on 290 owner reports

GoogleRedditYouTubeNHTSA
Community Reported
High ConfidenceVerified290 owner reportsLast reported by owners Jan 2025Reviewed Feb 2026

On the 2022-2025 Hyundai Ioniq 5, the Ioniq 5's wiring harnesses run with little clearance beneath the floor and driver's seat, leaving them vulnerable to moisture. Owners have reported that even a small interior water spill soaked the floor and seat harnesses and knocked out major systems. One widely reported Florida case ran to an ~$11,882 repair to replace both harnesses, which Hyundai and the owner's insurer both declined to cover. This is an owner-reported pattern, not a recall.

This issue also affects: Kia Telluride

Common Symptoms

  • Multiple electronic systems fail simultaneously after an interior spill or leak
  • Warning lights, dead accessories, or car won't power up after water exposure
  • Damp carpet/floor or water pooling under the front seats
  • Corrosion found on under-floor or under-seat wiring connectors

How to Fix

No recall; repair requires replacing the affected floor and/or driver-seat wiring harnesses (often a five-figure job). Owners are advised to avoid liquid spills near the seat base, address door/liftgate seal leaks promptly, and check the floor under the front seats for water/condensation pooling.

Research This Issue

GoogleRedditYouTubeNHTSA
Community Reported
Medium ConfidenceVerifiedReviewed Jun 2026
Community reported
350 owners

On the 2022-2024 Hyundai Ioniq 5, the electric HVAC heat pump compressor in early Ioniq 5 models develops a grinding or buzzing noise, especially during cold weather operation. The compressor bearing or internal scroll mechanism wears prematurely. In some cases, the heat pump fails entirely, leaving only resistive heating which significantly reduces range in winter.

Common Symptoms

  • Grinding noise from front of vehicle
  • Buzzing when heater is on
  • Heat pump warning on dash
  • Reduced range in cold weather
  • Cabin heater less effective

How to Fix

Have the dealer inspect the heat pump compressor under warranty. Hyundai has replaced compressors under warranty in affected vehicles. The compressor assembly replacement is $1,500-2,500 out of warranty. A software update for the thermal management system may reduce compressor stress. If heat pump fails, the car still heats via resistive heater but range drops 30-40% in cold weather.

Owner tips & cautions

  • TipPre-condition the cabin while plugged in before driving in cold weather - this reduces heat pump load and extends range
  • TipIf the heat pump fails in winter, use seat heaters and steering wheel heater instead of cabin heat to preserve range
Typical repair cost:$0 - $2,500

Research This Issue

Based on 350 owner reports

GoogleRedditYouTubeNHTSA
Community Reported
Medium ConfidenceVerified350 owner reportsLast reported by owners Jan 2025Reviewed Feb 2026

On the 2022-2025 Hyundai Ioniq 5, some Ioniq 5 owners report a whining, humming, or grinding noise from the electric drive motor at low speeds (under 20 mph). The noise is most noticeable when the cabin is quiet and the vehicle is creeping in parking lots or through neighborhoods. The bearing noise can come from either the front or rear motor (on AWD models) and may worsen over time as bearing wear progresses.

This issue also affects: Kia EV6, Kia Soul

Common Symptoms

  • Whining noise at low speed
  • Humming from drive motor
  • Grinding noise during parking maneuvers
  • Noise changes with vehicle speed
  • Noise present in gear but not in neutral

How to Fix

Have the motor bearing noise diagnosed at a Hyundai EV-certified dealer. If the bearing is confirmed worn, the motor assembly or bearing is replaced under the drivetrain warranty (typically 10 years/100,000 miles). Do not ignore progressive bearing noise as continued operation can damage the motor. Some early production units had a bearing specification that was later revised.

Typical repair cost:$0 - $2,000

Research This Issue

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Community Reported
Medium Confidence
Community reported
480 owners

On the 2022-2025 Hyundai Ioniq 5, the Ioniq 5 develops a clunking noise from the front suspension over bumps, traced to the front strut top mount bearing and stabilizer bar end links. The heavy battery pack puts extra stress on the front suspension components. The clunk is especially noticeable on rough roads and speed bumps.

Common Symptoms

  • Clunk over speed bumps
  • Knocking from front on rough roads
  • Rattle at low speeds over uneven surfaces
  • Noise from front when turning into driveway
  • Creaking from front suspension

How to Fix

Inspect and replace front strut top mount bearings (Hyundai part 54612-GI000, $50-80 each) and stabilizer bar end links (54830-GI000, $30-50 each). Labor for both is $200-400. Some owners have had the clunk resolved by simply torquing the strut top mount nut to spec. Dealer warranty claims have been approved for early failures.

What you need to fix it

Only diagnosis- and fitment-reviewed repair parts are linked here.

  • Genuine Hyundai front stabilizer link — left/driver side
    OEMHyundai 54830-GI000

    left front stabilizer link after the left link is confirmed as the clunk source Fitment/availability: Cataloged for 2022-2024 Hyundai Ioniq 5. Left-hand/driver-side part only; do not substitute for the right link.

    HyundaiPartsDeal
  • Genuine Hyundai front stabilizer link — right/passenger side
    OEMHyundai 54831-GI000

    right front stabilizer link after the right link is confirmed as the clunk source Fitment/availability: Cataloged for 2022-2024 Hyundai Ioniq 5. Right-hand/passenger-side part only; do not substitute for the left link.

    HyundaiPartsDeal

As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.

Owner tips & cautions

  • TipHave the dealer re-torque the strut top mount nut first - sometimes it is just loose from the factory
Typical repair cost:$100 - $500

Research This Issue

Based on 480 owner reports

GoogleRedditYouTubeNHTSA
Community Reported
High ConfidenceVerified480 owner reportsLast reported by owners Feb 2025Reviewed Feb 2026

On the 2022-2025 Hyundai Ioniq 5, hyundai TSB 24-BD-012H says certain 2022-2025 Ioniq 5 vehicles produced from October 4, 2021 through May 10, 2024 may exhibit rattle and friction noises from the tailgate while driving. The bulletin addresses the gap between the tailgate and vehicle body.

Common Symptoms

  • Rattle from the tailgate while driving
  • Friction noise from the tailgate while driving

How to Fix

Ask an Ioniq-certified Hyundai dealer to follow TSB 24-BD-012H. The procedure installs the specified guide-bumper kit and washers, then adjusts the tailgate striker and overslam bumpers as needed so the tailgate-to-body gap no longer produces the noise.

Research This Issue

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Manually Verified
High ConfidenceVerifiedReviewed Aug 2026

On the 2022-2025 Hyundai Ioniq 5, the parametric pixel rear taillights on the Ioniq 5 develop internal condensation and moisture buildup. Water droplets form inside the light housing, particularly after rain or car washes. While Hyundai considers some condensation normal, excessive moisture can obscure the light output and lead to premature LED failure or electrical corrosion inside the housing.

This issue also affects: Kia Forte

Common Symptoms

  • Visible water droplets inside taillight
  • Foggy taillight lens
  • Condensation after rain or car wash
  • Taillight output appears dim or diffused
  • Water pooling at bottom of light housing

How to Fix

Hyundai has issued a TSB for severe cases and will replace the taillight assembly under warranty. Mild condensation that clears on its own within a few hours is considered within spec. For out-of-warranty vehicles, check that the taillight vent ports are clear and unobstructed. Aftermarket sealant application is not recommended as it can trap moisture rather than allowing it to vent properly.

Typical repair cost:$0 - $600

Research This Issue

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Community Reported
Medium Confidence

On the 2022-2025 Hyundai Ioniq 5, the Highway Driving Assist 2 (HDA 2) lane centering system exhibits jerky corrections and ping-ponging between lane markings on certain road types. The system struggles with faded lane markings, construction zones, and roads with multiple overlapping lane lines. The steering corrections can be abrupt enough to startle passengers and create an uncomfortable driving experience, undermining confidence in the ADAS system.

Common Symptoms

  • Steering jerks left or right suddenly
  • Vehicle ping-pongs between lane lines
  • HDA disengages frequently
  • Steering feels fight-y on curves
  • System struggles with worn lane markings

How to Fix

Apply the latest Hyundai ADAS software update — multiple over-the-air and dealer updates have improved lane centering behavior. Calibrate the front camera after any windshield replacement. Clean the forward camera lens area on the windshield regularly. On problematic roads, reduce to HDA 1 (lane following with less aggressive centering) or disable lane centering entirely. Hyundai continues to refine the algorithm with OTA updates.

Typical repair cost:$0 - $200

Research This Issue

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Community Reported
Medium Confidence
Campaign #25V235000
11/04/2025

ELECTRICAL SYSTEM:WIRING

Hyundai Motor America (Hyundai) is recalling certain 2025 IONIQ 5 EV vehicles. The rear floor wiring harness may contain an open circuit, which can result in the rear side air bag not deploying as intended.

Campaign #25V06400006/02/2025

SERVICE BRAKES, HYDRAULIC:POWER ASSIST:ELECTRIC:CONTROL MODULE:SOFTWARE

Hyundai Motor America (Hyundai) is recalling certain 2025 Hyundai IONIQ 5 "N" vehicles equipped with a left-foot braking (LFB) feature. The integrated electronic brake (IEB) and vehicle control unit (VCU) software may cause reduced braking performance when LFB is activated.

Campaign #25V06500006/02/2025

+ 9 more recalls. Check all on NHTSA.gov

Enter your VIN at NHTSA.gov to check recalls specific to your vehicle.

get a full repair guide

What is the 2022-2025 Hyundai Ioniq 5 Infotainment System Crashes / Dual Screen Black Out?

The dual 12.3-inch screen infotainment system in the Ioniq 5 is prone to freezing, going black, and rebooting while driving. The issue affects navigation, climate controls (which are screen-only), and the digital instrument cluster. Loss of the driver display while driving is a s… Repairs typically run $0-$3,000. Severity: medium.

What is the 2022-2024 Hyundai Ioniq 5 Heat Pump / HVAC Compressor Grinding Noise?

The electric HVAC heat pump compressor in early Ioniq 5 models develops a grinding or buzzing noise, especially during cold weather operation. The compressor bearing or internal scroll mechanism wears prematurely. In some cases, the heat pump fails entirely, leaving only resistiv… Repairs typically run $0-$2,500. Severity: medium.

What is the 2022-2024 Hyundai Ioniq 5 Charge Port Door Failure / Motor Malfunction?

The motorized charge port door on the Ioniq 5 can fail to open or close, preventing charging. The electric motor actuator or its wiring fails, especially in cold weather. Some owners report the door freezing shut in winter. The door can sometimes be manually released with a pull-… Repairs typically run $0-$400. Severity: medium.

What is the 2022-2025 Hyundai Ioniq 5 Water Intrusion Damaging Under-Floor / Under-Seat Wiring Harnesses?

The Ioniq 5's wiring harnesses run with little clearance beneath the floor and driver's seat, leaving them vulnerable to moisture. Owners have reported that even a small interior water spill soaked the floor and seat harnesses and knocked out major systems. One widely reported Fl… Severity: medium.

What is the 2022-2025 Hyundai Ioniq 5 Electric Motor Bearing Noise at Low Speed?

Some Ioniq 5 owners report a whining, humming, or grinding noise from the electric drive motor at low speeds (under 20 mph). The noise is most noticeable when the cabin is quiet and the vehicle is creeping in parking lots or through neighborhoods. The bearing noise can come from… Repairs typically run $0-$2,000. Severity: medium.

What is the 2022-2025 Hyundai Ioniq 5 Front Suspension Clunk Over Bumps?

The Ioniq 5 develops a clunking noise from the front suspension over bumps, traced to the front strut top mount bearing and stabilizer bar end links. The heavy battery pack puts extra stress on the front suspension components. The clunk is especially noticeable on rough roads and… Repairs typically run $100-$500. Severity: low.

What is the 2022-2025 Hyundai Ioniq 5 Rear Tailgate Rattle and Friction Noise While Driving?

Hyundai TSB 24-BD-012H says certain 2022-2025 Ioniq 5 vehicles produced from October 4, 2021 through May 10, 2024 may exhibit rattle and friction noises from the tailgate while driving. The bulletin addresses the gap between the tailgate and vehicle body. Severity: low.

What is the 2022-2025 Hyundai Ioniq 5 Rear Taillight Condensation?

The parametric pixel rear taillights on the Ioniq 5 develop internal condensation and moisture buildup. Water droplets form inside the light housing, particularly after rain or car washes. While Hyundai considers some condensation normal, excessive moisture can obscure the light… Repairs typically run $0-$600. Severity: low.

What is the 2022-2025 Hyundai Ioniq 5 HDA 2 Lane Centering Jerking/Ping-Ponging?

The Highway Driving Assist 2 (HDA 2) lane centering system exhibits jerky corrections and ping-ponging between lane markings on certain road types. The system struggles with faded lane markings, construction zones, and roads with multiple overlapping lane lines. The steering corr… Repairs typically run $0-$200. Severity: low.