2023 Hyundai Ioniq 5 Engine Problems
- Complaints
- 38about this part
- Share
- 10%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 38 complaints about the engine of the 2023 Hyundai Ioniq 5, 10% of the 388 complaints for this model year.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Code P1A9096 Iccu and fuse. The car is currently at a dealer in Barre, VT. While driving numerous warning lights appeared lowering my speed to 10 MPH immediately leaving me vulnerable to a collision in moving traffic. Warning lights include Check Vehicle Electric System , Power Limited . Issue confirmed at dealer.”
NHTSA complaint #11660750, filed 2025-05“Having the same ICCU Failure that all other Ioniq 5 owners have. On February 26th, I was heading to work when I heard a pop and car displayed warning lights saying check EV system and stop safely. Car was limped home and towed to dealer. Was told fix will take a month.”
NHTSA complaint #11721884, filed 2026-03“Car lost charge quickly, went into limp mode while I was driving on the highway. I had to pull of the road several times and try to get it to a charging station. It barely made it after the lose of power. Charged it to 80% and it would only go up to a range of 100 miles. Took it to the dealership and they confirmed it needed a whole new main battery. ICCU had already been replaced. Had to wait over 5 months for replacement parts.”
NHTSA complaint #11726747, filed 2026-03“My car reported an error check electric vehicle system and would not drive over 25 mph. I had it towed to the nearest Hyundai dealership. This was after the car repeatedly killed the 12 volt battery. This is a common issue known with the ICCU.”
NHTSA complaint #11719268, filed 2026-02“While reversing slowly, I heard a pop noise (sounded like balloon popping) from the rear of the vehicle, and within 15 seconds later, a Check Electric Vehicle System warning appeared on the dash alongside the check engine light. About 5 minutes later, I received another warning that said Stop Vehicle and Check Power Supply and noticed the car was losing power. Was able to get it home to get it towed, but this was within 2 months after receiving the ICCU recall for this vehicle, and it seems the ICCU has failed again.”
NHTSA complaint #11654506, filed 2025-04Engine: other model years
Other parts of the 2023 Hyundai Ioniq 5
273 complaintsTransmission and drivetrain
72 complaintsFuel system
67 complaintsOther or unknown
44 complaintsForward collision avoidance
26 complaintsBrakes
24 complaintsVehicle speed control
18 complaintsLane departure
9 complaintsExterior lighting
8 complaintsTires
6 complaintsSteering
4 complaintsBody 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 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