2025 Hyundai Ioniq 5 Transmission and drivetrain Problems
- Complaints
- 57about this part
- Share
- 19%of 300 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 57 complaints about the transmission and drivetrain of the 2025 Hyundai Ioniq 5, 19% of the 300 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.
“While driving in traffic I heard a loud pop coming from the rear of the vehicle. A warning light came on on the dash board and the vehicle immediately slowed to about 10 mph. This was a dangerous situation as I was actively passing a vehicle on the highway and could have ended up colliding with oncoming traffic!”
NHTSA complaint #11713102, filed 2026-01“I started the car and got the warning check electric vehicle system. The car then lost power. It would only go 27mph with the accelerator pedal pushed all the way to the floor. My safety was at risk because my car was not responding appropriately to driver input. The car is at the dealership as it is undriveable in this condition. This is the second incident with this vehicle within 6 months.”
NHTSA complaint #11756602, filed 2026-08“I heard a pop and then immediately saw check electric vehicle system . The code I'm receiving in the app is P1A9096. The car was limited in driving speed, and I managed to get the car to the dealer before it stopped driving completely. I have about 8000 miles on this <1 year old car, and it seems like the ICCU has fried. Hyundai says this is under 1% of all cars, but from the internet it seems like this happens way more frequently. …”
NHTSA complaint #11698598, filed 2025-11“The ICCU failed with only 5,000 miles driven. The car then lost power, and would not move. Luckily, I was in a residential area. Had I been on the highway, I am uncertain if I would have been able to safely pull off to the side of the road.”
NHTSA complaint #11712572, filed 2026-01“The car is a brand-new 2025 Ioniq 5 with only 2,949 miles. All of a sudden and without warning, it entered limp mode while driving and did not go past 25 miles per hour. I was close to home so luckily I was able to street park it safely. Called roadside assistance and the car completely powered off (died) in front of the tow truck. The dealership says it is an ICCU failure and need to be entirely replaced. The part is backordered with no ETA for replacement.”
NHTSA complaint #11715585, filed 2026-02Related service bulletins
- 11030326Mar 17, 2026Certain IONIQ 5 (NEA EV) and IONIQ 9 (ME1A EV) vehicles (affected VINs listed below) may exhibit a high-frequency noise from the front motor area during low-speed deceleration…
- 11022374Aug 29, 2025Certain 2025MY IONIQ 5 (NEA EV) vehicles are equipped with a Motor and Reduction Gear Motor-Gear Drive Unit (MGDU) differential gear assemblies that are missing a wave washer…
Transmission and drivetrain: other model years
Other parts of the 2025 Hyundai Ioniq 5
228 complaintsFuel system
66 complaintsForward collision avoidance
24 complaintsOther or unknown
24 complaintsEngine
20 complaintsLane departure
17 complaintsVehicle speed control
16 complaintsBrakes
5 complaintsSteering
5 complaintsAir bags
3 complaintsBody and structure
3 complaintsSeat belts
2 complaints
← All problems reported for the 2025 Hyundai Ioniq 5
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