12 V battery died after being plugged in to charge overnight. The 12V battery was replaced in May 2024 due to a similar issue. It seems that the ICCU recalls and software updates have not been fixing the problem.
2022 hyundai Ioniq 5 electrical problems
moderate 231 complaints filed with NHTSA · avg repair $850
Complaints
231
Recalls
0
Crashes
2
Avg fix
$850
What owners are reporting 13 most recent
The vehicle was being driven normally on city street and I heard a thump in the rear end of the vehicle. Very soon after, got a message on screen to check electrical charging system with the indicator lights for 12 volt battery and EV system illuminating. Parked the vehicle a kilometer after thump to deliver something to a friend (the car sat for 10 minutes). Resumed driving and then within a ki…
Known level 2 charging issue with Hyundai Ioniq 5 vehicles. Overheating issue with charging system, previously the issue shut down charging with a temperature exceeded ~212 Fahrenheit. TSB issued that "throttles" down charging rate, irrespective of the brand of level 2 charger doubling the time to charge the vehicle. Not as advertised and significantly reducing the utility of the vehicle.
Unknowingly my cars ICCU failed. I went to charge my car on December 23. The EVSE then immediately tripped the breaker. The EVSE gave an error code of a stuck relay fault and made the EVSE unusable. This happened to 2 different Juicebox chargers and both are not permanently disabled and need to be replaced.
Was charging the car at home in my garage when the charging session stopped. Opened the door and smelled electrical burning. Was able to put the car in neutral and push it out onto my driveway, fearing that an electrical fire could be disastrous. Called Hyundai roadside assistance and they had it towed to the closest dealership that can work on EV's (35 miles away). No report yet, but I'm pret…
Open ICCU Fuse, car would not charge
The car stopped both Level 1 and 2 charging. But Level 3 charging worked. When it stopped in the middle of Level 2 charging, it tripped my circuit and bricked my Juicebix Level 2 charger. Hyundai replaced the ICCU.
The contact owns a 2022 Hyundai Ioniq 5. The contact stated that the vehicle was repaired under NHTSA Campaign Number: 24V868000 (Electrical System); however, the repair failed to prevent a failure from occurring shortly afterwards. The contact stated that while driving at 55 MPH, the vehicle was rattling abnormally. The vehicle was taken back to the same local dealer where it was diagnosed, and d…
The contact owns a 2022 Hyundai Ioniq 5. The contact stated while driving in rain or snow the rear windshield failed to be cleaned. The contact stated that the failure was a dangerous while driving at night while the headlights from vehicles behind caused the rear windshield to become opaque. The contact questioned a dealer and was informed that the vehicle was designed that way and that the winds…
Hyundai has absolutely dropped the ball on this Ioniq 5's ICCU and 12V battery issue. After numerous recalls to fix a hardware problem through a series of software fixes that don't work and refusal to give a loaner for loss of use, I would like to pursue a buyback option for this vehicle. On Tuesday, [XXX], I went to Napleton Valley Hyundai in Aurora, IL to complete RECALL CAMPAIGN #272 NHTSA RECA…
Common questions
How serious is the electrical problem on the 2022 hyundai Ioniq 5?
It's a documented issue but not catastrophic. 231 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?
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 $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?
No active recalls currently cover electrical 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.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. 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.