*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Engine
My 2018 Hyundai Ioniq Hybrid has a safety-critical transmission defect. The vehicle slips violently from 1st to 2nd gear, loses acceleration, and causes unpredictable hesitation. This creates a danger when merging onto highways or crossing intersections. Hyundai refused goodwill assistance, denied escalation, and directed me to BBB Auto Line, but BBB does not accept 2018 vehicles. This defect matches known DCT failures in Hyundai hybrid models and presents a significant safety risk, especially when transporting my two young children ( we lost mother during the childbirth .
Nov 7, 2025Air bagsCrash2 injuries
The contact owned a 2018 Hyundai Ioniq Hybrid. The contact stated while driving 75 MPH with her aunt in the front passenger's side seat, another vehicle suddenly merged into the contact's lane, causing the passenger's side of the vehicle to crash into the driver's side of the other vehicle. The vehicle then veered into a ditch on the right side of the road. The air bags failed to deploy. There was no warning light illuminated. The contact and her aunt exited the vehicle through the rear doors because the front doors were blocked by the bushes. The contact sustained pain in the right knee and ankle. The contact's aunt sustained pain in the right knee. The ambulance transported both…
Apr 3, 2024 · 85,000 milesPower train
The clutch failed and the clutch and I believe the clutch actuator had to be replaced. It was not available for inspection upon request. My safety and the risk of others were compromised by the constant jerking and sputtering, of the gears that took place during vehicle operation. My acceleration was laggy and at some points nearly unresponsive. The vehicle was inspected by service technicians. A warning light saying: Warning please check Hybrid Driving System, Do not drive vehicle was illuminated. Mid to late October 2023
Oct 28, 2023Engine
The car engine started to stall, the engine light came on and advised me to shut off engine then I pulled over and smoke immidiatley filled the cabin and outside the hood. My engine could have blown up. Had I not pulled over so quickly my car would have caught fire and I would have died. Yes the Hyundai Folsom inspected the car and listed issue was a hole in the engine block. They stated it was caused by premature wearing of the rod bearings and refused to repair. The ONLY warning happened within seconds of the car stalling and failing to accelerate before I pulled over. The first symptoms was a noise I couldne place 5 days prior. It was a mild knocking sound that was subtle.
Feb 29, 2024Electrical system
My lcd screen constantly goes black. A couple times the steering wheel locked the wipers and washer fluid went off at the same time. I had to hit the brakes and power the car on and off to reset it while making a turn. When having my window motor replaced for the SECOND time my dash where the speed is at all when black while driving on the freeway. I had to pull over and restart the car. My paint and my clear coat is separating on my trunk. It looks white not oxidation just separating and white. My driver side door button to lock the car kept getting stuck and was locking and unlocking. this left the possibilities of my car getting stolen from the door lock and the window motor leaving my…
Mar 24, 2023Power train
There is a defect with the transmission control module (TCM) and dual-clutch transmission (DCT). This defect prevents the car from properly accelerating from a stop. The defect manifests in the following ways when pressing the accelerator: unresponsive or sluggish acceleration, jerking, shuddering, failure to shift, stalling and complete loss of power. Typically, the TCM defect manifests in two ways: shuddering/delayed brake release, which has happened over 20 times and loss of power/engine revving out of gear which has occured three times. These issues are unpredictable, unrepeatable and dangerous. I usually experience them while waiting at stop lights in busy intersections. Delayed and…
Jun 30, 2021Unknown or other
VEHICLE BATTERY IS DEPLETED AND NEEDS SERVICING OR REPLACEMENT.
Dec 25, 2020 · 30 milesPower trainCrash
THE CAR SHIFTS FROM DRIVE MODE INTO SPORT MODE BY ITSELF WITHOUT THE DRIVER MANUALLY MOVING THE GEAR SHIFT FROM DRIVE TO SPORT. THIS HAPPENS RANDOMLY, BUT ALWAYS WHEN THE CAR IS IN MOTION AND ALWAYS IN A LOW GEAR( USUALLY FIRST GEAR ). IT HAS HAPPENED BOTH WHEN MAKING A TURN AND GOING STRAIGHT AHEAD , USUALLY WHEN THE CAR STARTS TO MOVE AFTER BEING STOPPED LIKE AT A TRAFFIC LIGHT. I CAN GET THE CAR TO GO BACK INTO DRIVE MODE BY PHYSICALLY MOVING THE GEARSHIFT INTO SPORT MODE AND THEN BACK INTO DRIVE MODE AGAIN. UNFORTUNATELY, THE MOST RECENT EPISODE OF THIS HAPPENED WHEN I WAS PULLING INTO MY GARAGE. I WAS HALFWAY INTO THE GARAGE WHEN THE CAR SWITCHED TO SPORT MODE BY ITSELF. THE CAR WAS…
May 13, 2019 · 18,300 miles
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.