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2017 Kia Optima PHEV Problems

Owner-reported complaints filed with NHTSA, grouped by component

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
23
Latest Oct 2, 2025
Components namedHow many of our component categories appear on at least one report for this model year. One report can name several.
11
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
3

What this page shows

Everything below is an owner-reported complaint submitted to NHTSA about the 2017 Kia Optima PHEV, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Reports by component

Ranked by how many owner reports name each component category

  • Engine1133.3%
  • Airbags26.1%
  • Brakes26.1%
  • Fuel system26.1%
  • Other / unspecified26.1%
  • Powertrain (other)26.1%
  • Seat belts13.0%
  • Driver assistance13.0%
  • Steering13.0%
  • Interior & seats13.0%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Each component in detail

What the reports in each category say, in the owners' own words

Engine

Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.

11
reports

From owner reports, verbatim

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 NHTSA 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.

NHTSA ID 11690964 · filed Oct 2, 2025

I was driving the vehicle home on the freeway after just buying it. I had only driven it for about 35-40 minutes and after 5 minutes the ev battery was drained completely and the car was running in hybrid mode. The vehicle suddenly lost all its power and a warning light came on flashing saying "check hybrid system turn off engine". I was forced to put on my emergency lights and quickly move over to the side of the freeway because the car lost so much power so quickly. It felt like the engine died and when i tried hitting the gas the vehicle would jerk. ONCE I got to a safe spot on the freeway. I called AAA to get a tow, then called the dealer to tell them. My wife and I have now checked the recalls for this car and all the customer complaints. There seems to be a similarity with the engine recall and or the hybrid electrical recall. It seems like Kia is making sure to cover its tracks with the cars so it doesn't have all the 2017 models in the recalls affecting the hybrid system as well as the defects with the engine components. There is definitely a problem. But i saw in the carfax that the vehicle was inspected a lot by KIA and that is why i would like it to get inspected by a 3rd party. I would like to get the vehicle inspected by a 3rd party before taking it to a KIA dealer but I don't have a lot of money. Can you help with this at all. Please contact me asap. You have the Vin. I told you I just bought the car so I am going to either see if the dealership I bought it from will fix the problem since it broke down the day I bought it. You should be able to see we bought the car from by looking at the carfax for the Vin. And you have my permission to also be able to get my phone numbers from that dealer I really don't think KIA should get away with these hybrid/engine problems with the car. Its very unfair to the consumers. If they as a manufacturer and dealerships are doing quick fixes when doing regularly scheduled maintenance. Thats unethical.

NHTSA ID 11690228 · filed Sep 28, 2025
All 11 reports naming engine

Electrical

Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.

8
reports

From owner reports, verbatim

I was driving the vehicle home on the freeway after just buying it. I had only driven it for about 35-40 minutes and after 5 minutes the ev battery was drained completely and the car was running in hybrid mode. The vehicle suddenly lost all its power and a warning light came on flashing saying "check hybrid system turn off engine". I was forced to put on my emergency lights and quickly move over to the side of the freeway because the car lost so much power so quickly. It felt like the engine died and when i tried hitting the gas the vehicle would jerk. ONCE I got to a safe spot on the freeway. I called AAA to get a tow, then called the dealer to tell them. My wife and I have now checked the recalls for this car and all the customer complaints. There seems to be a similarity with the engine recall and or the hybrid electrical recall. It seems like Kia is making sure to cover its tracks with the cars so it doesn't have all the 2017 models in the recalls affecting the hybrid system as well as the defects with the engine components. There is definitely a problem. But i saw in the carfax that the vehicle was inspected a lot by KIA and that is why i would like it to get inspected by a 3rd party. I would like to get the vehicle inspected by a 3rd party before taking it to a KIA dealer but I don't have a lot of money. Can you help with this at all. Please contact me asap. You have the Vin. I told you I just bought the car so I am going to either see if the dealership I bought it from will fix the problem since it broke down the day I bought it. You should be able to see we bought the car from by looking at the carfax for the Vin. And you have my permission to also be able to get my phone numbers from that dealer I really don't think KIA should get away with these hybrid/engine problems with the car. Its very unfair to the consumers. If they as a manufacturer and dealerships are doing quick fixes when doing regularly scheduled maintenance. Thats unethical.

NHTSA ID 11690228 · filed Sep 28, 2025

This pre-owned vehicle lost power at an intersection with my wife and child in the vehicle. Both of them were fearful and in tears. Several indicator lights suggested problems with the engine, HEV system , and battery. Upon returning home, I notified Carmax and scheduled the vehicle for service at a local Kia dealership. Although the mechanic told me that he knew there is a problem with the vehicle, Kia failed to diagnose or fix the problem(s), and could not assure me that the vehicle was safe to drive. Maxcare would not cover a rental car because no diagnosis was made. Kia also informed me of a previously undisclosed, long history of problems going back to 35 miles on the odometer. I requested a copy of Kia's vehicle history report and Kia refused to provide it. I also reported this safety concern to Kia Consumer Affairs, who provided no immediate solution, said they would contact the local Kia dealership, and referred me to an "ongoing" class action settlement at [XXX] , which indicated that the settlement had closed on 8/9/21. Because no other option was offered to me, I was forced to pick up the vehicle from Kia. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID 11554624 · filed Nov 11, 2023
All 8 reports naming electrical

Airbags

Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.

2
reports

From owner reports, verbatim

I took my car into the local Kia dealership after my engine failed while driving down the highway. I was approved for the engine replacement due to the recall. However after my engine was replaced, and still in the shop, the side curtain airbag module gave an error due to low voltage. Now I'm out $1200 for an item that should not fail within the first 6 years. I have had vehicles 3 times as old that did not have safety sensors or features failing. As Kia obviously has issues with airbag modules I believe my vehicle year and model should be included in this recall. Anytime there are multiple complaints for a failing safety feature on a vehicle less than 10 years old, the manufacturers should have an indepth investigation by an independent agency. These recalls should not be so narrow focused when there are many other models and years that have the same issues. Putting the responsibility on consumers to file complaints and beg for recalls to be issued seems like a backward system that is a burden to those that can't affoard to wait to MAYBE be reimbursed IF their car gets included in a recall later. When searching complaints for Kia airbags, there are several models/years that are not covered under current recalls.

NHTSA ID 11520100 · filed May 2, 2023

The contact owns a 2017 Kia Optima. The contact stated while driving 65 MPH, the air bag and seat belt warning lights illuminated. The vehicle was taken to a local dealer for a scheduled repair of NHTSA campaign number: 18V161000 (Hybrid Propulsion System). After performing the recall repair the mechanic cleared the warning light however, the warning light returned soon after. The contact took the vehicle back to the same local dealer to be diagnosed. The contact was informed that the driver’s and passenger’s side frontal airbags needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 57,000.

NHTSA ID 11432935 · filed Sep 14, 2021

Too few reports in this category for a page of its own — they appear in the full complaint list.

Brakes

Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.

2
reports

From owner reports, verbatim

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 NHTSA 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.

NHTSA ID 11551627 · filed Oct 24, 2023

TL* THE CONTACT OWNS A 2017 KIA OPTIMA PHEV. WHILE DRIVING APPROXIMATELY 40 MPH, THE "CHECK BRAKES" WARNING MESSAGE ILLUMINATED. ALSO, WHEN THE CONTACT DEPRESSED THE BRAKE PEDAL, IT TRAVELED ALL THE WAY DOWN TO THE FLOORBOARD AND THE VEHICLE DID NOT STOP. WHEN THE CONTACT WAS TRAVELING ON AN INCLINE, THE VEHICLE ROLLED BACKWARDS TO A COMPLETE STOP. THE VEHICLE WAS ENGAGED IN PARK AND THEN TURNED OFF. THE VEHICLE WAS RESTARTED AND OPERATED NORMALLY. THE VEHICLE WAS DRIVEN TO GERALD KIA OF NORTH AURORA (201 HANSEN BLVD, NORTH AURORA, IL 60542) TO BE DIAGNOSED, BUT THEY WERE NOT ABLE TO REPLICATE THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 60,000.

NHTSA ID 11219845 · filed Jun 13, 2019

Too few reports in this category for a page of its own — they appear in the full complaint list.

Fuel system

Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.

2
reports

From owner reports, verbatim

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

NHTSA ID 11570391 · filed Feb 6, 2024

KIA WON'T SERVICE THE ELECTRICAL LOSS RECALL

NHTSA ID 11192587 · filed Mar 30, 2019

Too few reports in this category for a page of its own — they appear in the full complaint list.

Other / unspecified

Reports whose component NHTSA recorded as unknown, or that do not map to one of the categories above.

2
reports

From owner reports, verbatim

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 NHTSA 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.

NHTSA ID 11551627 · filed Oct 24, 2023

TL* THE CONTACT OWNS A 2017 KIA OPTIMA HYBRID. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 18V161000 (HYBRID PROPULSION SYSTEM). THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE CONTACT CALLED A LOCAL DEALER (JIM BONE KIA, 1255 SANTA ROSA AVE, SANTA ROSA, CA 95404, (707) 545-7050) AND WAS INFORMED THAT THE PARTS WERE NOT AVAILABLE. THE MANUFACTURER WAS NOT NOTIFIED. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT.

NHTSA ID 11118109 · filed Aug 6, 2018

Too few reports in this category for a page of its own — they appear in the full complaint list.

Powertrain (other)

Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.

2
reports

From owner reports, verbatim

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

NHTSA ID 11570391 · filed Feb 6, 2024

While driving the car on the highway, when I try accelerating, the car suddenly acts as if it's in neutral and the engine roars without engaging a higher or lower gear and the car start losing power/speed. It takes like three to five seconds to engage a gear again; I have to lift my foot from the pedal a little bit and wait for it to lock on a higher or a lower gear for me to accelerate again.

NHTSA ID 11445028 · filed Dec 27, 2021

Too few reports in this category for a page of its own — they appear in the full complaint list.

Seat belts

Reports naming seat belts, buckles, retractors and pretensioners.

1
report

From owner reports, verbatim

This car was purchased [XXX] and has been in my possession for 3 years and 4 months. It has sat in a dealership repair facility for 13 of those months to replace the engine and high-voltage hybrid battery. Meaning I have actively driven this vehicle for approximately 27 months and the retraction system for the seatbelts is malfunctioning and as its a safety issue I feel the need to report this and see what other alternatives are available instead of paying out $1121.58 for something that malfunctioned under the first 10 years of the vehicles life sounds more like a design flaw than a user issue or uneasy wear as I am a [XXX] average build individual. As the vehicle went into the dealership for routine scheduled maintenance I noticed the driver and passenger seat belts don’t lock or retract properly. Service tech stated the retraction system is malfunctioning and they will both need to be replaced. With this system not working the driver and passenger are not able to be restrained properly in case of an accident. No lights or warnings appeared just noticed while driving in rush hour traffic in Buffalo, New York. *With this being a “more rare” PLUG IN HYBRID variant instead of a conventional ICE many issues don’t carry over so I would really like this to be investigated for the safety of the owners of this car.* INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID 11604578 · filed Jul 25, 2024

Too few reports in this category for a page of its own — they appear in the full complaint list.

Driver assistance

Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.

1
report

From owner reports, verbatim

While driving the car on the highway, when I try accelerating, the car suddenly acts as if it's in neutral and the engine roars without engaging a higher or lower gear and the car start losing power/speed. It takes like three to five seconds to engage a gear again; I have to lift my foot from the pedal a little bit and wait for it to lock on a higher or a lower gear for me to accelerate again.

NHTSA ID 11445028 · filed Dec 27, 2021

Too few reports in this category for a page of its own — they appear in the full complaint list.

Steering

Reports naming the steering system — racks, columns, power-steering assist and steering linkage.

1
report

From owner reports, verbatim

-

NHTSA ID 11651716 · filed Mar 31, 2025

Too few reports in this category for a page of its own — they appear in the full complaint list.

Interior & seats

Reports naming seats, latches, locks, linkages and interior fittings.

1
report

From owner reports, verbatim

The contact owns a 2017 Kia Optima PHEV. The contact noticed a failure with the key fob and manual locking function with the trunk. The contact was notified of NHTSA Campaign Number: 23V594000 (Latches/Locks/Linkages). The vehicle was taken to the dealer where it was diagnosed as a failure with the trunk latch base which needed to be replaced. The vehicle was repaired; however, the failure recurred. The manufacturer was notified of the failure. The approximate failure mileage was 103,000.

NHTSA ID 11582696 · filed Apr 12, 2024

Too few reports in this category for a page of its own — they appear in the full complaint list.

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .