Which parts fail
Components named in complaints (engine, cooling system, oil leaks, timing chain, exhaust).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2017 Hyundai Accent owners, lightly cleaned up (personal details are redacted by NHTSA).
I have already submitted a report here and never had any follow up and I don't see it in the reported complaints section of this website with newer incidents already showing so I know it isn't that there is a back log. my car caught on fire while I was in the car, asleep. I have reports from the fire department, I have struggled with Hyundai for months and ultimately was denied any assistance due to I was missing one of two service records. the fire report clearly stated that fire started in the cabin of the car not the engine so a lack of an oil change shouldn't have been the reason this happened. this event has traumatized me and continues to be an enormous burden on me and my family and their lack of caring is beyond disheartening. I easily could have died that day, by all accounts I should have. …
The contact owns a 2017 Hyundai Accent. The contact stated while driving 55 MPH, the vehicle stalled. The check engine warning light illuminated after the failure. The contact restarted the vehicle and drove to the dealer; however, the vehicle stalled twice while in transit to the dealer. The dealer replaced the engine cylinder, catalytic converter, and various other engine parts. Months after the repair, the contact stated that the failure returned, and the vehicle was taken back to the dealer. The contact was informed that the compression in the engine was low and that the engine needed to be replaced. The manufacturer was notified of the failure and a claim was filed; however, the claim was later denied. The vehicle was not repaired. The failure mileage was approximately 138,400.
October 2017 I purchased a 2017 Hyundai Accent. During my very first month driving this car right bumper clip broke. As I was under warranty took car in complained to the dealership. A tech came out and basically wacked it back in place. So now I notice both left and right sides of bumper are off track. My son is a licensed mechanic. Before I took it back to dealership he had checked and said mom your clip is broke. So he looks back under it again and now BOTH clips are broke. On 9/13/17 go back in. Hyundai notes in my paperwork clips are broke but failed to repair again at a little over 30,000 miles they note it again and failed to repair. This is a safety issue and I feel it should be a recall. …
I had two different mechanics I trust tell me that this car has a particular engine that had an error in manufacturing, but Hyundai didn't correct it, because it would cost them too much. The error is heavy oil burning, such that it destroys the catalytic converter. I am now on my third catalytic converter in this car, and the check-engine light is beginning to flicker. Mechanic recommended contacting Hyundai corporate to file a complaint. He knows of others with this same engine, and dealers in New Hampshire have been able to get new engine replacements. I tried to call Hyundai corporate, but they refuse to take any information from me and tell me I would have to buy a new engine if I want to replace it. Mechanics have said that the cost would be heavy for Hyundai if they admitted the problem. …
My car slowly started losing power and was not able to accelerate. My car would not go over 5 miles an hour as I pushed on the peddle. The engine was making noises every time I pushed on the peddle. My check engine light was also on. I got my car towed to AAA where they informed me that there was no oil in my engine and my engine was severely damaged. My last oil change was October 24, 2023 at 102,132 miles. I was advised my next oil change would be around 106,000. My car was reported with no oil on December 30, 2023 at 104,349 miles. My car is deemed ineligible for an extended warranty for my engine despite the recent engine recalls for Hyundais and having my car experience similar symptoms as other Hyundais with the same engine problem.
The contact owns a 2017 Hyundai Accent. The contact stated that while her granddaughter was driving at an undisclosed speed, the vehicle made an abnormal knocking sound with the check engine and oil warning light illuminated on the instrument panel. The vehicle stalled and her granddaughter was able to pull the vehicle off to the shoulder of the roadway. Due to the failure, the vehicle was initially towed to the contact's home. The contact called the dealer but was offered no assistance. The vehicle was then towed to an independent mechanic and diagnosed with engine failure. The manufacturer was notified of the failure. The vehicle remained in the possession of the independent mechanic unrepaired. The failure mileage was unknown.
The contact owns a 2017 Hyundai Accent. The contact stated while driving at an undisclosed speed, the passenger's side air bag warning light illuminated. The contact stated that after a visual inspection of the vehicle, she became aware that the vehicle was leaking oil. The check engine warning light was also illuminated. The vehicle was taken to the dealer and was diagnosed with failures to the passenger's side occupant sensor and the catalytic converter. The vehicle was not repaired. The manufacturer was notified of the failure, and a case was opened. The failure mileage was unknown.
Vehicle lost power in traffic, stalled and wouldn't restart without constant and repeated attempts. Place consumer is dangerous situation for rear collision. Vehicle restated but would not engage to where acceleration would occur above 15 mile per hour, sputtering, shaking and hesitating. Vehicle had to be towed where mechanic determined Computer code Cam Shaft out of sync. The vehicle is not own by this complainant more than a year purchase. Vehicle had experiences to appear to want to stall prior to this failure. Check engine light never cam on at any point
I have replaced the GDI engine on the 2017 Hyundai Accent once. I have also had the catalytic converter replaced 3x. The car lunges as if there will be another catalytic converter issue soon. Hyuandi recommended a fuel induction completion to prevent the issue from occurring again, but it did. This is a safety issue because the car and stall out at any given time. The cause of this issue has yet to be detected. It is believe a recall is needed on the GDI engine and catalytic converter.
I have had this vehicle for 5 years and even replaced the engine in this vehicle for it to end up with the same issue. I take very good care of it and get its maintenance done. But the car is slow to get up to speed and misfires really bad. I replaced the spark plugs in it and they were coated in oil. The airbag sensor will come on indicating it's not operating properly. Overall a very unreliable vehicle that has multiple issues. It has ended in catastrophic engine failure twice now
Engine complaints in other Accent years
Frequently asked questions
How common are engine problems on the 2017 Hyundai Accent?
NHTSA has 24 complaints about the engine & cooling of the 2017 Hyundai Accent, 35% of the model year's 68 complaints. The component named most often is exhaust system › emission control › catalytic convertor (1 mentions).
Is there a recall for 2017 Hyundai Accent engine problems?
No. NHTSA lists no engine & cooling recall for the 2017 Hyundai Accent. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2017 Hyundai Accent engine problems start?
Half of the complaints with a recorded mileage happened before about 118,000 miles.
Is it dangerous?
Owners linked 0 crashes, 1 fire and 0 injuries to engine & cooling problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.