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EnginePart report

2024 Hyundai Ioniq 5 Engine Problems

Complaints
22about this part
Share
10%of 226 total for the year
Median mileage
14,000miles
Trend
Too newThis model year is less than 4 years old, so a trend is not meaningful yet.

NHTSA recorded 22 complaints about the engine of the 2024 Hyundai Ioniq 5, 10% of the 226 complaints for this model year. Where a mileage was given, the median is 14,000 miles.

Example complaints

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

“ICCU failed after 14k miles. Car suddenly went into turtle mode (displayed on dash), car could only go 10 mph and my wife had to pull the car off the street asap and was a very scary experience. Dealer has confirmed the ICCU failure and given me a loaner vehicle. No eta on when the part can be fixed, just that it's current status is back order.”

NHTSA complaint #11719947, filed 2026-02

“Integrated Charging Control Unit (ICCU) failure at 16,000 miles in 2024 Hyundai Ioniq 5. Car was turned on and started to drive and sign said Power System Failure. Then it said Stop Vehicle Immediately. Car would not accelerate but I was close to home. I had it towed to Hyundai and they said it is an ICCU failure and they have no ETA when the part will come in.”

NHTSA complaint #11714455, filed 2026-01

“I was driving and the car gave an electrical system warning, slowed, and thereafter would not go above about 20mph. Fortunately this happened on a local, low speed limit street. I'd rather not think about what might have happened if this had happened on a highway. The Integrated Charging Control Unit (ICCU) is no longer working as it should. The problem has been confirmed by the dealer/manufacturer service station.”

NHTSA complaint #11725530, filed 2026-03

“I was merging onto the highway. I got a warning that I needed to check my electrical system. I was able to back down the highway ramp and park on a side street. Within 20 minutes the car was fully dead and AAA needed to tow it to the dealer. The dealer confirmed that the ICCU needs a replacement. My family is lucky this happened in a place we could safely get to a side street. Had it happened 5 minutes later we would have been stranded on the highway with 2 small children.”

NHTSA complaint #11724910, filed 2026-03

“Battery warning appeared. Car stopped after a few minutes. Car can’t be started. Complete list of power. Dealer confirmed it was the ICCU. I had a recall service done in 11.19.2024y last time I got an info about a recall was 1.9.2024”

NHTSA complaint #11643201, filed 2025-02

Engine: other model years

YearComplaintsShare of year
202614%
2025207%
20242210%
20233810%
2022369%

Other parts of the 2024 Hyundai Ioniq 5

Electrical system
179 complaints
Fuel system
51 complaints
Transmission and drivetrain
37 complaints
Other or unknown
19 complaints
Brakes
9 complaints
Vehicle speed control
7 complaints
Forward collision avoidance
6 complaints
Steering
5 complaints
Visibility (wipers, defrost, mirrors)
5 complaints
Back-over prevention (rear camera)
2 complaints
Exterior lighting
2 complaints
Lane departure
2 complaints

← All problems reported for the 2024 Hyundai Ioniq 5

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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