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Other or unknownPart report

2023 Hyundai Ioniq 5 Other or unknown Problems

Complaints
44about this part
Share
11%of 388 total for the year
Median mileage
—not reported
Trend
Too newThis model year is less than 4 years old, so a trend is not meaningful yet.

NHTSA recorded 44 complaints about the other or unknown of the 2023 Hyundai Ioniq 5, 11% of the 388 complaints for this model year. 1 of these say a crash was involved, according to the filers.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“My horn has quit working. I don’t use it often do it could have been broken for more than 6 months, but I just discovered it following the service for a number of recalls. Apparently, this is a common problem. In 41 years of car ownership and driving, this is a first for me. My car just passed 50,000 miles last week and I’m afraid it might not be covered under warranty.”

NHTSA complaint #11646006, filed 2025-03

“ICCU Unit went bad in 2025. Car totally dead. Jumped, taken to dealership, about 1 week to fix ICCU and blown fuse. A couple months later car totally dead again. Now bad battery. I am concerned about driving anywhere now. Was stranded last time it totally died. 75 year old female, should not have to pay $699 a month for iffy Ionic 5 and rent a dependable vehicle if I travel to visit friends and family.”

NHTSA complaint #11712876, filed 2026-01

“The car was fully charged and all of a sudden displayed a limited power warning and stopped driving completely. We were stuck on a road and had to get a tow truck. The tow truck was able to get power to the battery to drive it up on the bed. It was fully dead -couldn’t even unlock the doors. It’s been at Hyundai for 3 days and they are replacing the ICCU fuse. From what I read this is a very common issue”

NHTSA complaint #11702826, filed 2025-12

“My EV failed to charge using a home or public charger. The dealership determined that the ICCU of my Ioniq 5 failed and replaced it under warranty. I previously had evey software update and recall related to the ICCU performed, yet it still failed.”

NHTSA complaint #11701955, filed 2025-11

“On Mar 29th, I got a 12v battery low voltage warning sign at 4pm. Jumpstarted the car and drove back to the home. On Mar 30th, car would not start so I had it towed to Downey Hyundai by roadside assistance. On Mar 30th, 12:41pm dealer confirmed that the it will need an ICCU and have ordered the part, but there are no loaners and no ETA for the part at this time. Problem has been reproduced and confirmed by dealer. There were no other warning signs prior to the failure.”

NHTSA complaint #11728697, filed 2026-04

Related service bulletins

Other or unknown: other model years

YearComplaintsShare of year
2026414%
2025248%
2024198%
20234411%
2022328%

Other parts of the 2023 Hyundai Ioniq 5

Electrical system
273 complaints
Transmission and drivetrain
72 complaints
Fuel system
67 complaints
Engine
38 complaints
Forward collision avoidance
26 complaints
Brakes
24 complaints
Vehicle speed control
18 complaints
Lane departure
9 complaints
Exterior lighting
8 complaints
Tires
6 complaints
Steering
4 complaints
Body and structure
4 complaints

← All problems reported for the 2023 Hyundai Ioniq 5

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology