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Hyundai · Known Issues

2025 Hyundai Ioniq 5 N Problems: 4 Known Issues

2025 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated August 2026

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Issue summary

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2025 Hyundai Ioniq 5 N has 4 documented known issues, with 2 rated critical. The most serious are Left-Foot Braking (LFB) Mode Depressurizes ABS, Causing Long Pedal and Extended Stopping Distance ($0-$0 repair) and N e-Shift Software Fault Causes Continued Acceleration After Throttle Release ($0-$0 repair). DIY maintenance guides at au7o.io.

In This Article

  • Ioniq 5 N Brakes1
  • Ioniq 5 N Drivetrain1
  • Ioniq 5 N Body/Panels1
  • Ioniq 5 N Electrical1
  • FAQ
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In This Article

  • Brakes1
  • Drivetrain1
  • Body/Panels1
  • Electrical1
  • FAQ

All 4 Known Issues

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ALL YEARS20252024

On the 2025 Hyundai Ioniq 5 N, the Ioniq 5 N's Left-Foot Braking mode lets the driver hold throttle and brake simultaneously for track use. A logic fault in the Integrated Electronic Brake (IEB) control software can command depressurization of the ABS hydraulic circuit during certain maneuvers with LFB active. The car still brakes, but hydraulic assist is reduced - the pedal goes long and hard and stopping distances increase sharply, exactly when the driver is braking hardest. This is a distinct failure from the normal regen-to-friction blending complaints: it is a software-commanded pressure loss, not a transition feel issue. Covered by NHTSA recall 25V-235 alongside the N e-Shift defect; roughly 1,500-1,600 US vehicles.

Common Symptoms

  • Hard, long brake pedal requiring much more effort
  • Noticeably longer stopping distance
  • Loss of ABS assist during left-foot braking
  • Brake warning message on cluster

How to Fix

Apply the recall 25V-235 IEB software update (OTA or dealer, free). Hyundai's interim instruction was to leave LFB switched off entirely until the reflash was done. If the pedal has felt long, also have the dealer verify brake fluid condition and bleed the system - track-heat-cycled fluid on this car boils faster than owners expect.

Typical repair cost:$0 - $0

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Community Reported
High ConfidenceVerifiedReviewed Aug 2026

On the 2025 Hyundai Ioniq 5 N E-GMP dual-motor AWD, 84 kWh, 601 hp / 641 hp N Grin Boost, on Ioniq 5 N models equipped with the simulated-shift 'N e-Shift' feature, a Vehicle Control Unit (VCU) software logic error can allow the drive motors to keep producing torque briefly after the driver lifts off the accelerator, particularly during aggressive up/down-shift inputs with the paddles. Because the e-Shift routine deliberately modulates torque to fake gear changes, the control logic can hold torque commanded when it should have zeroed it, producing an unintended acceleration event. Hyundai filed a safety recall (NHTSA 25V-235, superseding 25V-065) covering Ioniq 5 N vehicles with the N e-Shift and left-foot-braking features and told owners to stop using the feature until updated. Hyundai reported awareness of at least one crash. Owners on ioniqforum described the car surging while driving in N mode before the recall was published.

Common Symptoms

  • Car continues to accelerate after lifting off the accelerator
  • Surge or lurch during simulated paddle shifts
  • Unintended acceleration in N mode
  • Warning that N e-Shift is disabled after update

How to Fix

Have the VCU (and Integrated Electronic Brake) software reflashed under recall 25V-235 - delivered over-the-air or by a Hyundai dealer at no charge. Vehicles already updated under the earlier 25V-065 campaign must be re-flashed with the newer remedy; the first fix did not fully resolve it. Until the update is applied, do not use N e-Shift.

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Typical repair cost:$0 - $0

Research This Issue

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Community Reported
High ConfidenceVerifiedReviewed Aug 2026

On the 2024-2025 Hyundai Ioniq 5 N, a persistent rear-of-cabin rattle is one of the most reported non-safety complaints on the Ioniq 5 line, and it is louder on the N because there is no engine noise and the N's stiffer damping and 21-inch wheels feed more impact energy into the body. Hyundai issued TSB 24-BD-012H addressing rattle and friction noise from the tailgate caused by an incorrect gap between the tailgate and the body. Owners have traced additional sources independently: the rear seatbelt guide and buckle assemblies knocking against the hard plastic side trim, and the B-pillar seatbelt-height-adjuster cover. N-car owners on n-cars.net report the same noises.

Common Symptoms

  • Rattle from rear hatch over bumps
  • Buzzing or knocking from rear side trim
  • Creak from rear of cabin on uneven pavement
  • Noise disappears when rear seatbelts are buckled

How to Fix

Start with the TSB: adjust the tailgate's rubber overslam bumpers and the tailgate-to-body gap per 24-BD-012H, which cures the majority of cases. If the noise persists, buckle the rear seatbelts into their latches to stop the buckle tongues tapping the trim, and add felt tape behind the rear seatbelt guide and the B-pillar height-adjuster cover. Check the cargo-floor board and the tire-repair kit/undertray for loose contents before disassembling trim.

Typical repair cost:$0 - $300

Research This Issue

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Community Reported
High ConfidenceVerifiedReviewed Aug 2026

On the 2024-2025 Hyundai Ioniq 5 N, two related software problems affect the ccNC-generation head unit. The display intermittently goes to a static or snowy image and stops responding to touch for a minute or two, recurring roughly monthly on affected cars - this takes the climate controls, drive-mode menus and the N performance displays with it because they live in the touchscreen. Separately, Bluelink remote functions (remote climate precondition, remote charge start, vehicle status) stop working; Hyundai has attributed part of this to intermittent loss of connectivity on the Verizon telematics network rather than a hardware fault. Wireless CarPlay dropping to no-connection is a third, commonly reported symptom on 2025 cars.

Common Symptoms

  • Screen goes static/snowy and touch stops responding
  • Head unit reboots on its own
  • Bluelink remote climate or remote charge fails to connect
  • Wireless CarPlay will not pair or drops mid-drive

How to Fix

For a frozen or static screen, force a head-unit reset: on 2022-2024 cars a paperclip in the pinhole beside the physical controls at the right of the screen reboots it; owners report the pinhole reset does not work on 2025 cars, which need a brief 12V negative-terminal disconnect instead. For Bluelink, delete and re-add the vehicle in the app and have the dealer check for a telematics unit software update - Hyundai has issued bulletins covering connectivity interruptions. Persistent static-screen cases warrant head unit software reflash or replacement under the 3yr/36k basic warranty.

Typical repair cost:$0 - $1,500

Research This Issue

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Community Reported
Medium ConfidenceVerifiedReviewed Aug 2026
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Frequently Asked Questions

What are the most common Hyundai Ioniq 5 N problems?

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2025 Hyundai Ioniq 5 N has 4 documented issues. The most frequently reported are: Left-Foot Braking (LFB) Mode Depressurizes ABS, Causing Long Pedal and Extended Stopping Distance, N e-Shift Software Fault Causes Continued Acceleration After Throttle Release, Tailgate and Rear Trim Rattle Over Broken Pavement (TSB 24-BD-012H). Of these, 2 are rated critical and should be addressed promptly.

Is the Hyundai Ioniq 5 N reliable?

The 2025 Hyundai Ioniq 5 N has 4 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 2 issues are rated critical: Left-Foot Braking (LFB) Mode Depressurizes ABS, Causing Long Pedal and Extended Stopping Distance and N e-Shift Software Fault Causes Continued Acceleration After Throttle Release. 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 N problems?

Repair costs for known Hyundai Ioniq 5 N issues range from $0 to $1,500, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Left-Foot Braking (LFB) Mode Depressurizes ABS, Causing Long Pedal and Extended Stopping Distance, typically costs $0-$0 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2025 Hyundai Ioniq 5 N Left-Foot Braking (LFB) Mode Depressurizes ABS, Causing Long Pedal and Extended Stopping Distance?

The Ioniq 5 N's Left-Foot Braking mode lets the driver hold throttle and brake simultaneously for track use. A logic fault in the Integrated Electronic Brake (IEB) control software can command depressurization of the ABS hydraulic circuit during certain maneuvers with LFB active. Repairs typically run $0-$0. Severity: high.

What is the 2025 Hyundai Ioniq 5 N N e-Shift Software Fault Causes Continued Acceleration After Throttle Release?

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 compiled from NHTSA recalls, manufacturer TSBs, automotive forums, and AI-assisted research. No aggregated owner-report counts available for this vehicle yet.

On Ioniq 5 N models equipped with the simulated-shift 'N e-Shift' feature, a Vehicle Control Unit (VCU) software logic error can allow the drive motors to keep producing torque briefly after the driver lifts off the accelerator, particularly during aggressive up/down-shift inputs… Repairs typically run $0-$0. Severity: high.

What is the 2024-2025 Hyundai Ioniq 5 N Tailgate and Rear Trim Rattle Over Broken Pavement (TSB 24-BD-012H)?

A persistent rear-of-cabin rattle is one of the most reported non-safety complaints on the Ioniq 5 line, and it is louder on the N because there is no engine noise and the N's stiffer damping and 21-inch wheels feed more impact energy into the body. Hyundai issued TSB 24-BD-012H… Repairs typically run $0-$300. Severity: low.

What is the 2024-2025 Hyundai Ioniq 5 N Infotainment Head Unit Lockup / Static Screen and Bluelink Telematics Dropouts?

Two related software problems affect the ccNC-generation head unit. The display intermittently goes to a static or snowy image and stops responding to touch for a minute or two, recurring roughly monthly on affected cars - this takes the climate controls, drive-mode menus and the… Repairs typically run $0-$1,500. Severity: low.