2017 Hyundai Ioniq Hybrid engine problems

Filed Oct 30, 2026 · Electrical, Engine · FL

Vehicle/Component: Hydraulic Clutch Actuator (HCA) / Electrical / Hybrid Powertrain Associated Recall: the federal safety agency Campaign Number 18V‑260 (Hyundai Campaign 176) Complaint Description: My 2017 Hyundai Ioniq Hybrid is experiencing a dangerous failure of the Hydraulic Clutch Actuator (HCA), causing the "Check HEV" warning light to illuminate and severe drivability issues. This vehicle was previously included in the federal safety agency Campaign 18V‑260 (Hyundai Recall 176). However, the manufacturer's chosen remedy in 2018 was inadequate and failed to permanently cure the safety defect. According to Hyundai’s defect report, the root cause of the recall is internal manufacturing burrs on the HCA housing cylinder block that degrade the oil seal over time, allowing fluid to leak onto electrical components and create a fire hazard. During the 2018 service visit, the dealership only replaced the outer "phase cap" rather than replacing the defective housing block itself. The underlying manufacturing defect (the internal burrs) has now completely destroyed the internal seals, resulting in a live manifestation of the exact safety defect and fire risk described in the original recall. A Hyundai dealership has confirmed the HCA failure and quoted $3,800 for replacement. Hyundai Motor America Corporate is actively refusing to remedy this active safety hazard, claiming the recall is permanently "closed" because a temporary band-aid remedy was applied in 2018. An incomplete or failed safety recall remedy does not relieve the manufacturer of their federal statutory obligation to permanently eliminate a safety defect. I am filing this complaint because Hyundai is refusing to repair a known, active federal safety hazard on a vehicle that received an ineffective remedy.

Filed Oct 4, 2026 · Electrical, Engine · MI

After the Dealership, Michigan City Hyundai (MCH), performed part of the needed repairs, I became aware of what could/would have been a fire hazard (as evidenced by brownish/black heat spots, on the metal cover of the hybrid battery, under the rear seat. To maintain its recall-denial, MCH blames the hybrid starter generator (HSG) for the damage to the hybrid battery. The noted heat-spots prove otherwise - the power relay assembly (the subject of one of the recalls related to my car), and its malfunction and consequent generation of excessive heat, is what caused severe damage to the hybrid battery. The other failed component (hybrid system generator - HSG) is directly related to the hybrid clutch actuator (HCA), which is the subject of the 2nd recall affecting my car. The malfunction of the HCA is what damaged the HSG. the federal safety agency database shows no open recall affecting my car VIN, is because dealer IL093 (who sold me the car around April 2025), logged both recall remedies as applied in Hyundai's internal database. The selling dealer (IL093), which claims to have completed the Power Relay Assembly and Hydraulic Clutch Actuator recalls on my vehicle, was under the ownership of Leader Automotive Group during the timeline of the alleged repairs and my April 2025 purchase. Leader Automotive Group was sued and penalized $20 million by the FTC and the State of Illinois for systematic consumer fraud, deceptive practices, and concealing voided manufacturer warranties. Because the physical components have now suffered the exact catastrophic failures these recalls were designed to prevent, there is a high probability that dealer IL093 fraudulently logged these recall remedies as completed without physically performing the work. I request that the federal safety agency Office of Defects Investigation immediately audit IL093's repair logs for this VIN in light of the FTC enforcement action.

Filed Jul 21, 2026 · Electrical, Engine · CO

The vehicle has suffered a catastrophic failure of the hybrid drive motor rotor, transmission, and engine clutch, resulting in a $14,993 repair quote. This is a direct consequence of a failed remedy for the federal safety agency Recall 18V260 (Hyundai Campaign 176).In February 2020, a dealer performed an 'inspection/cap' remedy under Campaign 176. However, this did not permanently fix the manufacturing burrs on the hydraulic clutch actuator housing. Over time, the inner oil seals degraded exactly as warned in the original defect report. Hydraulic fluid leaked into the electric stepper motor, causing an electrical short circuit that destroyed the entire hybrid powertrain. The vehicle lost propulsion and threw a severe Hybrid Warning Light on the dashboard. This represents a complete failure of a mandated safety recall remedy, introducing an active electrical short circuit and a severe vehicle fire hazard.

Filed Sep 6, 2025 · Engine, Transmission · PA

Engine failure occurred on interstate. Car was jerking and smoke coming from the hood and exhaust while engine was giving out. Hyundai dealership confirmed something blew up within the engine and blew a hole out the side of it. Check engine light came on about 2 weeks prior notified Hyundai dealership as soon as this happened and they stated I had to wait 2 weeks to have the vehicle checked out.

Filed Jun 9, 2025 · Brakes, Engine · FL

The 12v ion battery system part number 37507-g2120 (iccu) battery failed while driving, causing gas engine to turn off, which cancels power braking and steering, making vehicle impossible to control. Read many reports on reddit and ioniq forums of this happening. No. It is unoperable there was no warning what so ever. No light, no symbol, nothing. Was traveling 40 MPH on a busy road with family, during a lane change this happend and the vehicle turned off completely. I could not control vehicle, and went into a ditch. In the process we were nearly side swiped by a large pick up truck whom also went in ditch. The 12v battery was dead completely, would not start the gas engine. Just was dead. Im lucky to be here telling our experience.

Filed May 2, 2025 · Electrical, Engine · CA

I have had issues with the car losing speed and start to flutter. The last time it did this it locked up my steering wheel and engine cut off this has been an ongoing issue with this car only had it less than a year and the dealership cannot remedy the issue there is some kind of electrical issue because all lights come on car has less than 50k moles on it this is my 5 visit to the dealership with no resolution have contacted the manufacturer

Filed Oct 17, 2024 · Engine, Transmission · FL

Unable for many time to get recall complete old recall was told not complete and now that i have an issue they are telling me it was done trans clutch . My car has been at the dealer for three months . It is at lafontaine hyuandi dearborn mi. The part i need to fix my engine /clutch has an indefinite date when it will be available. I had this same problem when my car was less than a year old with the drive shaft. I have been in contact with corporate Hyundai and the dealer we cannot get a hold of sometimes for a whole week. These engine problems have been a huge issue with Hyundai. The engine will suddenly slow down to 20s being a hazard risk. Dealers when i have tried to get recall wont do recall they say they only have one person who can do it. I have had recalls scheduled months out and then they cancel. The problem i am having directly relates to a closed recall per multiple mechanics. The recall caused oil to leak which is what dealer said happened . Please help!!

Filed Dec 19, 2022 · Electrical, Engine · CA · fire

I was driving on the freeway when my car started smoking. Pulled over immediately and 30 seconds later the entire front of the car was engulfed in flames. I hadn’t received a second recall notice, but I did take it in the first time when a fire risk was mentioned.

Filed Aug 21, 2019 · Engine · 34,000 miles · CT

Takara recall - my car was shut off and parked in my driveway. About an hour later, (my car was still off), as I went outside to talk to my family outside which we happened to be only about 15 feet of where my car was parked and still the engine was off! The next thing to my surprise and dismay, my car engine started up all by its self!!!??? I have 2 family witness verifying my engine was in fact running and there is absolutely no way I had anything to do with it! I am very concerned about this happening again especially if it did it once and I don't know what would have happened if I was not around my for 2 - unknown long hours! It is very unsettling to know my engine stars on it's own and will it go into reverse or forward and kill someone!!?? Please get back to me asap. [xxx] [xxx] information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).

Filed Mar 12, 2019 · Engine · AL

Tl* the contact owns a 2017 hyundai ioniq hybrid. The contact stated that the federal safety agency campaign number: 18v704000 (engine) exceeded a reasonable amount of time for repair. The contact received the recall notification in september of 2018. Capitol hyundai montgomery (2820 eastern blvd, montgomery, al 36116) stated that the parts were not available. The manufacturer was also contacted and confirmed that the parts were unavailable. The contact had not experienced a failure. Parts distribution disconnect.