2017 Kia Optima PHEV: check engine light

Filed Oct 2, 2025 · Engine · 64,500 miles · NJ

The contact owns a 2017 Kia Optima. The contact stated that while driving approximately 50 MPH, there was an abnormal knocking sound coming from the engine compartment. The contact stated that the check engine and oil warning lights illuminated and then turned off independently. The contact slowed down, and after arriving at the destination, the vehicle was towed to an independent mechanic. The contact was advised by the mechanic that there was potential engine failure and was referred to the dealer for assistance. The vehicle was towed to a dealer, and the contact was made aware that the VIN was included in the federal safety agency Campaign Number: 21V844000 (Engine); however, the KSDS software update was not performed prior to the engine failure, which disqualified the vehicle from the engine replacement. The vehicle was not repaired. The manufacturer was informed of the failure and advised the contact that the vehicle did not qualify for the engine replacement. The failure mileage was approximately 64,500.

Filed May 7, 2025 · Engine · 87,000 miles · CA

The contact owns a 2017 Kia Optima PHEV. The contact stated that there was an abnormally loud rattling sound coming from the vehicle. The contact stated that the check engine warning light was turning on and off. The contact stated that the catalytic converter and battery were damaged. The vehicle was taken to the local dealer, who was unable to determine the cause of the failure. The vehicle was not diagnosed or repaired. The contact contacted Putnam Kia Service (2 California Dr Suite D, Burlingame, CA 94010), Hilltop Ford (3280 Auto Plaza, Richmond, CA 94806) and Oakland Kia (2500 Webster St, Oakland, CA 94612), but no assistance was provided. The vehicle was taken to an independent mechanic who determined that the rings and seals needed to be replaced. The contact was informed that the walls were scored in the engine. The mechanic determined that the engine needed to be replaced. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 87,000.

Filed Feb 6, 2024 · Engine, Fuel system · CA

I was getting on the freeway and my car suddenly just stopped accelerating. I even tried pushing the pedal to the floor and all power was gone. I was almost ran down by a 18 wheeler who must not have noticed my hazards had been switched on. A warning came on “check hybrid system. Turn off engine” When the car lost its momentum as I was pulling over and eventually came to a stop I followed the warnings directions and shut the car off since I couldn’t get any further anyways. I tried turning the car back on and then all lights and power instantly started flickering on and off and going crazy and then the warning came back on and then the whole car shut off by itself. I have been too scared to drive it since and I just got it back in October and I need a car to get to work and school and I don’t know what to do but the amount of danger this issue put me in is unsettling and cannot be overlooked. Not sure what caused the malfunction because so many different things happened at once that it was hard to tell It is available for inspection upon request A service center confirmed that there is a problem and they believe it is related to the coolant pump and hybrid battery There was one other time that a warning came up and it just said “check hybrid battery” but it went away only like a minute later and then a couple days after that I came outside to go to work and the car was dead but then I jumped it and it was fine up until the issue I first mentioned happened where I was put in danger A warning light that said !HEV and the check engine light both appeared

Filed Oct 24, 2023 · Brakes, Engine · 117,336 miles · IN

The contact owns a 2017 Kia Optima PHEV. The contact stated that while driving at an undisclosed speed up a steep hill, the vehicle lost motive power. The Check Hybrid System, Turn Off Engine message was displayed, and the traction control, check engine, ABS, and auto-hold warning lights illuminated. The vehicle was towed to the dealer; however, the cause of the failure was not found. The vehicle was not repaired. The contact stated that the vehicle was previously repaired under the federal safety agency Campaign Number: 18V161000 (Hybrid Propulsion System) for the issue; however, the failure recurred. The manufacturer was made aware of the failure. The failure mileage was 117,336.

Filed Apr 4, 2019 · Electrical, Engine · CA

I have 2017 kia plug in I had to replace batteries system twice within a year. I also have a engine knocking at 26000 miles that the dealer claims is a that was cause by service done to oil filter that don't make no sense. No oil light or engine light went off. Further more after that happened the electrical went out. The kia company's refuse to fix it. The vehicle has 5 year warranty.