Problems · NHTSA complaints
2019 Hyundai Ioniq Plug-in Hybrid problems
Owners filed 11 complaints about the 2019 Hyundai Ioniq Plug-in Hybrid with NHTSA between Oct 2020 and Oct 2026. The most-cited component is electrical system (5).
Complaints
11
Filed with NHTSA
Crashes
3
Reported by owners
Fires
0
Reported by owners
Injuries
3
People reported injured
Deaths
0
Reported to NHTSA
Complaints by component
One complaint can cite several components
- Electrical system5
- Power train4
- Fuel/propulsion system2
- Vehicle speed control2
- Seat belts2
- Engine1
- Air bags1
- Structure1
- Other / unknown2
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Nov 12, 2026NHTSA vehicle page
When complaints were filed
Does it get worse with age? Complaints per calendar year filed
1
1
2
2
1
1
3
View as table
| Model year | Complaints filed per calendar year |
|---|---|
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 1 |
| 2026 | 3 |
Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.
Top problems in owners’ words
Verbatim from NHTSA complaints, newest first
Electrical system
5 reports1 crash
“Component that failed: The charging inlet locking actuator (Hyundai: "charging connector lock/unlock actuator") on my 2019 Hyundai IONIQ Plug-In Hybrid. It locks the connector to the inlet. The failed actuator is STILL INSTALLED and available for inspection at a dealership. Safety risk: Hyundai TSB #18-BE-018 requires technicians to disconnect the high-voltage safety plug, wait 5 minutes for capacitor discharge, and wear insulated gloves because the area contains "high voltage components." A locked actuator forces owners to pry at an energized connector—shock hazard. A partially engaged connection risks arcing and fire. Charging failure also depletes the traction battery, cutting power available for merging and evasive maneuvers. Incident: Without warning, the connector would not release. It took ~30 minutes to free the charger. I nearly had to drive with the charger connected, feeding the cord through my driver's window. No warning lamps appeared before or during the failure. Confirmed by dealer: Yes. Diagnosed by [XXX] Hyundai on XXX, invoice XXX. Inspections: Dealer only. No police report, insurance claim, or known HMA engineering inspection. Manufacturer…”
Power train
4 reports1 crash
“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!”
Fuel/propulsion system
2 reports
“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.”
Vehicle speed control
2 reports1 crash
“APPARENTLY, A FRONT-END COLLISION OCCURRED WHILE THE VEHICLE WAS PARKED AND UNOCCUPIED IN A PARKING LOT RESULTING IN $1232 IN DAMAGE TO BODY PARTS, ANTI-COLLISION RADAR, AND ELECTRONIC CRUISE CONTROL. ASTONISHINGLY, THE BUMPER AND EVEN THE FRONT LICENSE PLATE SUSTAINED ALMOST NO VISIBLE DAMAGE WHATSOEVER. SEE PHOTOS ATTACHED. THE COLLISION MUST HAVE HAPPENED AT EXTREMELY LOW SPEED AND IT IS OBVIOUS THE FRONT BUMPER DID NOTHING TO PROTECT THE REST OF THE CAR--ITS PRIMARY INTENDED FUNCTION. THIS WOULD BE THE EQUIVALENT OF A HOUSE BURNING DOWN TO PROTECT THE FUSE BOX. I CHECKED YOUR WEBSITE AND NOTE THAT THE HYUNDAI IONIQ IS AS YET NOT RATED. I SUSPECT THERE IS A SERIOUS SAFETY ISSUE FOR A CAR TO SUSTAIN SUCH DAMAGE IN A PARKING LOT WITH ALMOST NO VISIBLE DAMAGE TO ITS PRIMARY PROTECTION MECHANISM: THE BUMPER. PLEASE NOTE THAT ITEMS DAMAGED WERE ALL IMMEDIATELY BEHIND THE BUMPER--A VERY DANGEROUS PLACE FOR THEM TO BE.”
Seat belts
2 reports
“The rear driver's side seat belt completely detached from the shoulder attachment point.”
Engine
1 report1 crash
“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.”
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 12, 2026
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.