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Transmission and drivetrainPart report

2019 Hyundai Ioniq Plug-In Hybrid Transmission and drivetrain Problems

Complaints
4about this part
Share
36%of 11 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the transmission and drivetrain of the 2019 Hyundai Ioniq Plug-In Hybrid, 36% of the 11 complaints for this model year. 1 of these say a crash was involved, according to the filers.

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 driving the transmission started driving rough and the car was stuck in ev mode. Wouldnt even go back to hybrid mode. I kept driving until all my battery range was exhausted and lost acceleration and had to pull over the side of the highway. It was late at night so there was no one around or behind me, otherwise I would have been hit. Once stopped the car would not move at all so I called a tow to get me off the highway. I was away from home and had to tow it 120 miles back to the local dealer. …”

NHTSA complaint #11677139, filed 2025-07

“Many times, when I back out of my driveway into the intersection in front of my house the vehicle hesitates for several seconds when shifted from Reverse to Drive. I am in a situation where I cannot accelerate if needed out of the intersection. This is a safety issue in my opinion. The dealer was not able to replicate the problem, even though it happens frequently and has not provided a solution. One time, on a long road trip, while climbing a grade the vehicle could not achieve normal highway speeds (could only get to 20-30 mph). …”

NHTSA complaint #11578030, filed 2024-03

“While my wife and I were driving on the interstate, all dashboard warning lights came on at once, and the car began rumbling at regular intervals as it tried and failed to switch from electric vehicle (EV) mode to hybrid EV (HEV) mode, and the engine wouldn't start. At the same time, the power steering stopped working, the car struggled to go more than 40 MPH, and it started accelerating on its own and would not stop until I hit the brake. Each time the engine tried and failed to start, the car started accelerating again. I pulled off at a gas station, turned the car off, and called for a tow. …”

NHTSA complaint #11469104, filed 2022-06

“In the middle lane of a multiple lane highway, it suddenly gave a very confusing warning on the dashboard. It lost power and slowed down quickly to below 40 mph. It didn't help to press down the gas pedal. I was forced to switch from the middle lane to the passing lane in order to reach the shoulder. The car was side swept by another car in the passing lane because it was at low speed. Once it reached on the shoulder it stopped completely. If it gave a clear warning, for example, pull out immediately! …”

NHTSA complaint #11474067, filed 2022-07

Related service bulletins

Transmission and drivetrain: other model years

YearComplaintsShare of year
2020117%
2019436%

Other parts of the 2019 Hyundai Ioniq Plug-In Hybrid

Electrical system
5 complaintsFuel system
2 complaintsOther or unknown
2 complaintsSeat belts
2 complaintsVehicle speed control
2 complaintsAir bags
1 complaintsEngine
1 complaintsBody and structure
1 complaints

← All problems reported for the 2019 Hyundai Ioniq Plug-In 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