2020 Hyundai Ioniq Hybrid Transmission and drivetrain Problems
- Complaints
- 2about this part
- Share
- 12%of 17 total for the year
- Median mileage
- 60,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the transmission and drivetrain of the 2020 Hyundai Ioniq Hybrid, 12% of the 17 complaints for this model year. Where a mileage was given, the median is 60,000 miles.
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.
“While attempting a slow right turn from a complete stop at an intersection, I heard a loud thunk sound followed by an immediate loss of power steering response. The steering wheel spun freely with little resistance while the front tires did not respond proportionally. I was able to safely pull over. Upon restarting the vehicle it produced an abnormal wheezing sound suggesting additional mechanical stress. At the time of the failure the vehicle had approximately 40,000 miles, which I believe represents a premature failure for a safety-critical steering component. …”
NHTSA complaint #11737339, filed 2026-05“The contact owns a 2020 Hyundai Ioniq Hybrid. The contact stated that while idle, releasing the brake and pressing the accelerator, the vehicle would jolt forward before accelerating. The failure would occur intermittently and had become progressively more pronounced. There were no warning lights illuminated. During the most recent occasion, the vehicle jolted forward so aggressively that it caused the contact to have whiplash. The contact had to refrain from work due to the whiplash symptoms sustained, such as neck pain and nausea. …”
NHTSA complaint #11675641, filed 2025-07, 60,000 milesRelated service bulletins
- 10243318Sep 7, 2023This bulletin provides the procedure to update the Hybrid Control Unit (HCU) / Low DC/DC Converter (LDC) software logic to eliminate internal P-DTCs (that are not viewable) in…
Transmission and drivetrain: other model years
Other parts of the 2020 Hyundai Ioniq Hybrid
7 complaintsElectrical system
6 complaintsBody and structure
3 complaintsBrakes
2 complaintsLane departure
2 complaintsElectronic stability control
1 complaintsEquipment
1 complaintsFuel system
1 complaintsSteering
1 complaintsVehicle speed control
1 complaints
← All problems reported for the 2020 Hyundai Ioniq Hybrid
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