Most common 2019 Hyundai Ioniq Plug-In Hybrid problems
Share of the 11 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Hyundai Ioniq Plug-In Hybrid complaints by model year
NHTSA defect investigations
Federal safety investigators have looked into a possible defect involving the 2019 Hyundai Ioniq Plug-In Hybrid:
Pedestrian alert sounds
NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles.
What 2019 Hyundai Ioniq Plug-In Hybrid owners say
Electrical system
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!", and flashed the emergency light automatically, it might save a few seconds, and gave a warning to cars behind. It's a PHEV, and I believe that it used up the battery for driving but failed to automatically start the gas engine.
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. The engine clutch actuator failed and ruined my transmission and left me stranded in the middle of the night!
Transmission & drivetrain
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!", and flashed the emergency light automatically, it might save a few seconds, and gave a warning to cars behind. It's a PHEV, and I believe that it used up the battery for driving but failed to automatically start the gas engine.
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). Big rigs were right behind the vehicle and were not happy having to slow down. Again creating a big safety hazard.
2019 Hyundai Ioniq Plug-In Hybrid engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 1.6L 4-cyl plug-in hybrid | 6-speed dual-clutch | FWD | 53 / 52 / 52 |
EPA ratings. Class: Midsize car.
Frequently asked questions
Is the 2019 Hyundai Ioniq Plug-In Hybrid a good car?
There isn't enough complaint history for the Ioniq Plug-In Hybrid to compare model years reliably. So far owners have filed 11 complaints with NHTSA.
What is the most common problem with the 2019 Hyundai Ioniq Plug-In Hybrid?
The electrical system — 5 complaints, 45% of all complaints for this model year. Next are the transmission & drivetrain (4) and speed control & acceleration (2).
How many recalls does the 2019 Hyundai Ioniq Plug-In Hybrid have?
NHTSA lists no recalls for the 2019 Hyundai Ioniq Plug-In Hybrid. You can still confirm with your VIN using our VIN recall check.
At what mileage do 2019 Hyundai Ioniq Plug-In Hybrid problems happen?
The median mileage reported in complaints is about 21,000 miles; 100% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.