2025 Hyundai Ioniq 6 Transmission and drivetrain Problems
- Complaints
- 5about this part
- Share
- 14%of 37 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 5 complaints about the transmission and drivetrain of the 2025 Hyundai Ioniq 6, 14% of the 37 complaints for this model year.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The ICCU assembly and high voltage fuse blew/broke at 6,255 miles as I was driving on Interstate 294. That immediately reduced the vehicle maximum speed to about 25mph, causing a hazard to myself and following drivers who were traveling at 55mph or more. I limped about 3 miles to the next exit, where Hyundai arranged for a tow and warranty service to replace the faulty parts. There were no prior symptoms or warnings. …”
NHTSA complaint #11709687, filed 2026-01“While traveling in fast-moving traffic, my 2025 Hyundai IONIQ 6 suffered a catastrophic electrical system failure and an immediate loss of motive power. The vehicle instantly entered a 'limp mode' and dropped to a maximum speed of 11 mph, creating a life-threatening hazard for myself and surrounding drivers. There were no warning lamps or symptoms prior to this sudden failure. The vehicle was towed to a certified Hyundai dealer (Ricart Hyundai), where a diagnostic scan confirmed a failure of the Integrated Charging Control Unit (ICCU) with error code DTC P1A9096. …”
NHTSA complaint #11728008, filed 2026-03Transmission and drivetrain: other model years
Other parts of the 2025 Hyundai Ioniq 6
22 complaintsOther or unknown
8 complaintsFuel system
4 complaintsLane departure
3 complaintsVisibility (wipers, defrost, mirrors)
3 complaintsSteering
2 complaintsWheels
2 complaintsBrakes
1 complaintsEngine
1 complaintsForward collision avoidance
1 complaintsTires
1 complaintsVehicle speed control
1 complaints
← All problems reported for the 2025 Hyundai Ioniq 6
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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