Of the 141 electrical complaints filed for the 2024 Hyundai Ioniq 5,
here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
0-25k
1 (100%)
25-50k
0 (0%)
50-75k
0 (0%)
75-100k
0 (0%)
100-125k
0 (0%)
125-150k
0 (0%)
150k+
0 (0%)
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted.
Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits
and driving conditions shift the curve as much as mileage alone.
What stands out
Electrical accounts for 67% of every owner complaint on file for this vehicle — the dominant problem area across 4 categories tracked.
Owners have filed 141 electrical complaints against 1 active recall — roughly 141 complaints per campaign.
Hyundai Motor America (Hyundai) is recalling certain 2022-2024 IONIQ 5, 2023-2024 IONIQ 6, Genesis GV60, Genesis GV70 "Electrified," and Genesis G80 "Electrified" vehicles
A loss of drive power increases the risk of a crash.
Fix: This recall is replaced by NHTSA recall number 24V-868. Vehicles already repaired under this recall will need to have the new remedy completed. Dealers will inspect and replace the ICCU and its fuse, as necessary. In addition, dealers will update the ICCU software. All repairs will be performed free of charge. Owner notification letters were mailed April 22, 2024. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 257/021G.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering electrical 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.
Service Bulletin26-GI-002H TSBMay 2026
This bulletin provides information related to the navigation and head unit software changes introduced in the 2026 1st Navigation Map and Software Update. The changes may vary depending on vehicle type, model, and navigation system. Refer to the 2026 1st Navigation Map and Software Update Key Improvements and Additional Improvements tables in this TSB for a list of specific changes. The software can be downloaded via Navigation Updater (NAU) and updated by USB.
Hyundai is extending the warranty coverage for the Integrated Charging Control Unit (ICCU) and ICCU fuse to 15 years/180,000 miles from the date of original retail delivery or date of first use (whichever occurs first) and is valid for original and subsequent owners. Follow the flowchart in Technical Service Bulletin (TSB) 26-BE-010H to check for an active or stored occurrence of any Diagnostic Trouble Code (DTC) that requires replacement of the ICCU and replace the ICCU and ICCU fuse if necessary. Some vehicles may have an active DTC that requires ICCU replacement. Please note that any vehicles under 15 years/180,000 miles are covered by this TSB, even if vehicle is within High Voltage Warr
Hyundai is extending the warranty coverage for the Integrated Charging Control Unit (ICCU) and ICCU fuse to 15 years/180,000 miles from the date of original retail delivery or date of first use (whichever occurs first) and is valid for original and subsequent owners.
Hyundai is extending the warranty coverage for the Integrated Charging Control Unit (ICCU) and ICCU fuse to 15 years/180,000 miles from the date of original retail delivery or date of first use (whichever occurs first) and is valid for original and subsequent owners. Follow the flowchart in this bulletin to check for an active or stored occurrence of any Diagnostic Trouble Code (DTC) that requires replacement of the ICCU and replace the ICCU and ICCU fuse if necessary. Some vehicles may have an active DTC that requires ICCU replacement.
This bulletin provides information related to the changes introduced in the 2025 1st Navigation Map and Software Update. The changes may vary depending on vehicle type, model, and navigation system as described in this TSB.
Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The dominant complaint is sudden ICCU (Integrated Charging Control Unit) failure that either kills the vehicle completely or forces it into severe limp mode (5–25 mph max), often while the main battery shows healthy charge. Owners describe hearing a loud pop, seeing "Check Electrical System" warnings escalate to red "Stop Vehicle" alerts, then total loss of power including hazard lights, power steering, and door locks. This happens without prior warning and across mileages from 3,000 to 15,000+.
The threat is real: drivers have lost power on freeways, highway merges, bridge interchanges, and busy roads in traffic—situations where they were lucky not to be rear-ended or forced into other vehicles. One owner lost all braking power at highway speed due to an IEP module failure. Another experienced unintended acceleration that crashed through a garage wall.
Hyundai issued a recall (DTC CHK ICCU FUSE RPL24-01-0234) with a software patch in January 2025, but owners report the same failures continue afterward. Dealers report internal failure rates of 6–7%, yet many vehicles remain outside the recall scope by VIN. Replacement ICCU parts are backordered indefinitely (2 weeks to months), and owners confirm the same part fails again in some cases. Hyundai has no redesigned part, only the original component.
Secondary issues include 12V battery failures, brake system electrical loss, and advanced driver assistance system dropouts at highway speed. One owner's remote start and Bluelink failed with no diagnosis from Hyundai, raising safety questions about integrated features like crash notification and stolen vehicle tracking.
Same Hyundai Ioniq 5 electrical reports on nearby years: 2022 · 2023 · 2025
Failure modes owners describe
ICCU (Integrated Charging Control Unit) Failure
The ICCU, which manages the 12V battery charging and controls critical vehicle systems, fails suddenly and without warning. This failure renders the vehicle either completely powerless or forces it into severe limp mode (maximum speed 5-25 mph), typically while the main battery still shows adequate charge. Owners report hearing a loud pop or bang sometimes associated with a blown fuse. The failure occurs across a wide range of mileages and often happens repeatedly even after replacement with the same part.
When: Occurs unpredictably; reported from 3,000 miles to 15,000+ miles; some vehicles fail multiple times
Symptoms owners cite: Check Electrical System warning (yellow circle, then red); Stop Vehicle and Check Power Supply warning; 12V Battery Voltage Low warning; Power Limited warning; Vehicle enters limp mode or complete loss of propulsion; Loud pop or bang sound (possibly blown fuse); Loss of power steering, hazard lights, door locks, and window controls; Complete electrical shutdown
Repairs/costs cited: ICCU and/or fuse replacement required. Parts are on indefinite backorder, with wait times of 2 weeks to several months. Some owners report replacement parts fail again shortly after installation. Dealerships report 6-7% failure rate internally, though NHTSA reports 1%. Hyundai has not implemented a design fix, only software patches via recall.
Recalls/TSBs owners mention: Recall campaign DTC CHK ICCU FUSE RPL24-01-0234 issued; software updates applied; affected VINs excluded from recall despite identical failures in non-recalled vehicles; ICCU replacement under warranty but parts unavailable; Hyundai customer care initially downplayed severity and cleared vehicles for long-distance driving despite warnings
12V Battery System Failure
The 12V auxiliary battery fails to charge properly or loses charge abruptly, often in conjunction with ICCU failure. This deprives the vehicle of power for essential systems. Owners report that the battery drains quickly and in some cases dealers have misdiagnosed the root cause as a faulty 12V battery when the actual problem is ICCU-related charging failure. Some owners have been charged to replace the 12V battery only to experience the same failure again.
When: Occurs unpredictably; can happen within first 6 months of ownership or after several years
Symptoms owners cite: 12V Battery Voltage Low warning; Vehicle fails to start; Complete loss of electrical power; Battery depletes rapidly; Vehicle requires jump-start but will not hold charge
Codes mentioned:12V battery charging system fault
Repairs/costs cited: 12V battery replacement attempted but often ineffective if ICCU is the root cause. Hyundai has installed what owners believe are faulty OEM batteries; aftermarket battery replacement has resolved issues for some owners at their own cost. Dealerships sometimes blame defective batteries rather than diagnosing ICCU failure.
Recalls/TSBs owners mention: Dealerships replace 12V batteries under warranty; no design change to battery or charging system; Hyundai refuses to acknowledge widespread faulty battery issue despite hundreds of online reports
Brake System Electrical Failure
Loss of braking function or severely diminished brake response while driving. One owner reports complete brake failure requiring maximum pedal pressure; another reports brake pedal becoming softer. Diagnostics confirm failure of the IEP (Integrated Electrical Platform) module that communicates between brake system components. One incident involved inability to engage brakes when backing out of driveway.
When: Reported at 3-4 weeks of ownership; one incident during routine driving at highway speed
Symptoms owners cite: Check Brake System warning; Stop Vehicle and Check Brake System warning with flashing red ring; Check ABS System warning; Brake pedal becomes soft or requires extreme pressure to engage; Loss of braking function; Brakes unresponsive when backing vehicle
Codes mentioned:DTC C123501
Repairs/costs cited: IEP (Integrated Electrical Platform) assembly replacement required. One owner waited approximately 1 week for parts to arrive.
Recalls/TSBs owners mention: Part replaced under warranty; no apparent design change or recall issued for brake system electrical failures
Advanced Driver Assistance System (ADAS) Failure
Sudden loss of automated driving features including adaptive cruise control, lane keeping assist, lane departure warning, and forward collision sensors. This occurs without warning while driving at highway speed, leaving drivers unaware their assistance systems have failed.
When: Reported at 15,685 miles while driving at 60 mph; appears related to ICCU electrical failure events
Symptoms owners cite: Adaptive cruise control disengages; Lane keeping assist disables; Lane departure warning stops functioning; Forward collision sensors become inoperable; Loss of automated systems occurs without warning
Codes mentioned:
Repairs/costs cited: Associated with ICCU failure; repaired via ICCU replacement.
Recalls/TSBs owners mention: Part replaced under warranty
Charging System Malfunction (DC Fast Charging)
Vehicle fails to charge properly on Level 2 and DC fast chargers, though Level 1 charging works. This significantly reduces the vehicle's usability and convenience as an EV, defeating a primary selling point.
When: Ongoing over several months prior to complaint
Symptoms owners cite: Failure to charge on Level 2 chargers; Failure to charge on DC fast chargers; Level 1 charging only functional
Codes mentioned:
Repairs/costs cited: Dealership unable to diagnose root cause.
Recalls/TSBs owners mention: No diagnosis or resolution provided by dealership
Unintended Acceleration
One incident of sudden surge of acceleration upon entering garage, with vehicle refusing to stop despite maximum brake pedal pressure. Vehicle crashed through wall separating garage from kitchen and was declared total loss by insurance adjuster, who identified a safety issue as cause.
When: Incident occurred while entering garage
Symptoms owners cite: Sudden surge of acceleration; Brakes unresponsive; Vehicle will not stop despite maximum pedal pressure; Emergency braking system did not engage
Codes mentioned:
Repairs/costs cited: Vehicle totaled; not repaired
Recalls/TSBs owners mention: No manufacturer response documented; case involved insurance claim and police report
Remote Start and Telematics System Failure
Complete failure of remote start feature and infotainment/telematics system (Bluelink). The failure is undiagnosed by Hyundai. Raises concerns about integrated safety features such as automatic crash notification, stolen vehicle tracking, and emergency service button functionality that may be compromised.
When: Reported in late 2025; ongoing without diagnosis
Symptoms owners cite: Remote start feature inoperative; Infotainment system (Bluelink) unresponsive; No diagnosis provided by manufacturer; Uncertainty about status of integrated safety features
Codes mentioned:
Repairs/costs cited: No repairs initiated; root cause unknown
Recalls/TSBs owners mention: No diagnosis or repair plan provided; Hyundai stated they do not know what is wrong with the vehicle or how to fix it
Synthesized from 141 NHTSA owner complaints — unverified consumer
allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting
10 most recent
electrical
· filed 12/27/2024
12V battery dead. It is only 5 months and the start battery is dead. I needed jump start and the problem reoccurring. I hear this is a common problem for all HI 5 models. So why it is not part of recall? Dealership is asking money for replacement. Repeated reoccurring dead battery issue.
electrical
· filed 12/27/2024
Hyundai has installed faulty 12v batteries in the Ioniq 5 series cars. The OEM battery fails, resulting in an emergency stop or failure to start. Hyundai refuses to acknowledge the faulty batteries, yet the resolution found by numerous consumes to resolve the issue has been to purchase and install the correct 12v battery. Despite going to the dealership to seek a remedy, they refused to replace…
electrical
· filed 12/20/2025
The ICCU on my car failed after hearing a loud pop (fuse blown) while driving on the freeway. This was an incredibly dangerous scenario in which I went from 70 mph to 25 mph, in an area with no shoulder. Hyundai is aware of the issues with the ICCU and I believe they should expand the recall to include EVERY Hyundai Ioniq 5 and 6. Interestingly, the technician at the dealership states in the…
electrical
· filed 12/18/2025
On Monday Dec 15 I was on the Coranado bridge in San Diego heading on the island. A warning flashed about the electric system. Then, towards the end of the bridge, the car immediately slowed down suddenly and I could feel the regenerative breaking. I had to time or opportunity to get over. By the grace of God, traffic started to slow as we got near the end of the bridge and the car was able to go…
electrical · 3,000 mi
· filed 12/15/2025
The contact owns a 2024 Hyundai Ioniq 5. The contact stated that the message "Check Electric Vehicle System" and DTC: P0C7300 - System Motor Control Problem Detected had been displayed intermittently on the instrument panel. The contact stated that the DTC notification was persistently displayed on the Hyundai Blue link Mobile App. The vehicle was taken to the dealer several times, but the…
electrical
· filed 12/15/2024
Received orange warning “Power limited”. A minute or so later received RED warning “Stop vehicle and check power supply”. Less than a minute later the car stopped and turned off completely, even the HAZARD lights would not flash. Tow truck was unable to tow because the car could not be taken out of park, wheels locked. Also, as soon as the warnings started the power steering failed and the car…
electrical
· filed 12/09/2025
The ICCU failed while driving which left me with an undriveable vehicle on the side of the road. The vehicle was towed to the dealership and repaired; however, the part is the same and may fail again.
electrical
· filed 11/19/2024
Went to charge at AC charger and found that it would not charge. Tried another charger and same thing occurred. Car would say 0.3kW and than stop charging. Dealer said ICCU issue.
electrical
· filed 11/14/2023
Another complain for investigation PE 23-011. First car was DOA, second had an exploding pop sound and no longer charges, car is no longer usable, only 200 miles.
electrical
· filed 11/12/2025
While driving, heard a pop sounds from back seats. Then a warning appears on front screen : Check Electric Vehicle system. The car lost all power and stopped beside the road. The car has only 14K kms on it.
Had electrical trouble with your 2024 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 electrical problem on the 2024 Hyundai Ioniq 5?
It's a documented issue but not catastrophic. 141 complaints have been filed. Repairs average $850 and most owners catch it before it causes a breakdown.
At what mileage does the electrical typically fail?
Based on the 141 complaints filed, electrical issues most often appear around 10,060 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $850 for electrical 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 electrical?
Yes — 1 active recall(s) cover electrical issues on this vehicle. Recall fixes are always free regardless of mileage or warranty status. Use the VIN decoder at the top of the page to check if your specific vehicle is affected.
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/2024/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.