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 2018 Honda Fit owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2018 Honda Fit. The contact stated that while driving at 25 MPH, the vehicle stalled. Additionally, the vehicle was hesitating. There was an unknown fluid leaking from inside the vehicle underneath the dashboard. The contact noticed that there was fluid on the floormat. The contact sustained unknown injuries to her feet, and medical attention was provided. The check engine warning light was illuminated. The contact received notification of NHTSA Campaign Number: 23V858000 (Fuel System, Gasoline) and NHTSA Campaign Number: 24V384000 (Back Over Prevention); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The manufacturer opened a case on the contact's behalf. …
The contact owns a 2018 Honda Fit. The contact stated that while driving at an undisclosed speed, the vehicle hesitated and started to shake. The check engine warning light intermittently illuminated. The vehicle was taken to the dealer where it was diagnosed that the fuel injectors had failed and needed to be replaced. The vehicle was not repaired. The contact stated that the failure recurred. The vehicle was taken to AutoZone where a diagnostic test was performed and produced DTC code: P0420 (Catalyst System Low Efficiency). Additionally, the contact stated that he independently replaced the spark plugs, ignition coils, and the injectors however, the failure recurred. The vehicle was not repaired. The contact stated that his brother was an independent mechanic and was able to use a code reader and retrieved DTC code: P0420. The vehicle was not repaired. …
My company vehicle has fluid leaking on the floor, the check engine light constantly coming on, the rear camera is intermittently inoperable and it smells like something has died in it (mold/mildew). Since I have owned the vehicle, I have reported these issues to Honda dealerships and they have claimed to fix the problems. I paid for an extended warranty and each time the dealership forced me to pay for repeat issues that repeatedly continued to happen. The battery died a more than once right after I purchased it. The car had to be towed a few times because of the electrical battery issue. The fluid that was leaking on the floor caused my leg, lungs and mental health to suffer. I am currently under doctors care for the mechanical issues the car has caused. This is my company vehicle and it has been at Honda of Covington since April 2023. …
The contact owns a 2018 Honda Fit. The contact stated while driving 65 MPH, the TPMS and emissions system failure warning lights illuminated. The vehicle was towed to the local dealer and diagnosed with excessive carbon build-up in the engine. The contact was advised to not drive the vehicle until the vehicle was repaired. The vehicle was not yet repaired. The manufacturer was notified of the failure. The failure mileage was approximately 65,000.
The contact owns a 2018 Honda Fit. The contact stated that upon starting the vehicle, there was an abnormal rattling sound coming from the engine. There was no warning light illuminated. The local dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was notified of the failure but offered no assistance. The approximate failure mileage was 55,000.
THIS IS MY SECOND SUBMISSION!!!!!! PLEASE HELP!!!! 2018 Honda Fit Saleena - 1:39 pm EST Submitted for the formal complaint about the harassment and discrimination related to All honda dealerships, Kyle Mitchell and Shakaia (Rep from previous call). Case Management / and Supervisor is reviewing. If the manufacturer has failed or is unable to remedy this safety recall for your vehicle in a timely manner, Please contact the NHTSA Vehicle Safety Hotline at: [phone] or TTY: [phone] or file an online complaint with NHTSA. My company vehicle has fluid leaking on the floor, the check engine light constantly coming on, the rear camera is intermittently inoperable and it smells like something has died in it (mold/mildew). Since I have owned the vehicle, I have reported these issues to Honda dealerships and they have claimed to fix the problems. …
My vehicle has been inoperable since 2023. The dealership refuses to repair the fuel pump and all other issues, per the manufacturers recall. Steve Allain at Honda of Covington reported to me that the vehicle would not re-start if turned off. The leadership at the dealership (Kyle Mitchell) and Courtney Gullien communicated to me that the car was operable and the fuel pump was repaired, but will not provide service records that document this information. Tim in the parts department has communicated to me multiple times that no one from the dealership has ordered any parts related to the fuel pump recall for my vehicle. The manufacturer refuses assist with this matter and send someone from corporate to inspect the vehicle after multiple requests. The check engine light provided warning, along with a loud burning smell from the vehicle. …
Purchased great condition used 2018 Fit EX on [redacted] from local non-Honda dealership. The next day, on [redacted], the following errors appeared on the dash: tire pressure monitor system, emissions, hill start assist, lane deviation warning, power steering, and vehicle stability assist errors on the screen, and the check engine, tire pressure monitoring system, vehicle stability assist system, and electric power steering lights were also on. Returned to the used dealership that same day. They replaced the spark plugs and battery, still not solved. Took it to local Honda service shop (Performance Kings Honda at 9131 Fields Ertel Rd, Cincinnati, OH 45249), diagnosed as needing fuel injectors replaced (running too rich), and got the fuel injector repair. Got the car back within a week, problem now solved. …
VSA, power steering, engine light, and tire sensor light all came on at once. The car was not steering properly. I took the car in May 16, 2024, and they determined that a carbon buildup in the engine was the cause, and said the cylinder also had a misfire. They also said that the car needed a software update. I asked about the recall, because the recall letter I got in the mail states that if the engine light comes on, then it is eligible for repair. But they refused to repair it, claiming that the issue was only due to the carbon buildup, and said they have no parts available. However on my invoice when picking up the car, they listed the recall as if it were part of the repairs. I asked, just to verify, if they repaired it and they said no. …
Honda of Covington , Honda Corporate, Louisiana Secretary of State, St Tammany Parrish court system and Trey Lape (attorney for Honda of Corporate has bullied / discriminated and harassed the owner of this vehicle. The owner of this vehicle reported electrical, mechanical and smells of fire emitting from this vehicle multiple times since 2018. To date, the vehicle has not been repaired. [redacted] stalked the owner in 2023 and last Friday, [redacted] in person. The owner of this vehicle drove cross country after Trey Lape advised the vehicle fuel pump was corrected. Mr. Tim (Parts Department with Honda of Covington) confirmed that the Fuel Pump part was NOT ordered for my vehicle by the service department. The vehicle has been inoperable since April 2023. The owner and board members are people living with multiple disabilities. …
Engine complaints in other Fit years
Frequently asked questions
How common are engine problems on the 2018 Honda Fit?
NHTSA has 24 complaints about the engine & cooling of the 2018 Honda Fit, 21% of the model year's 117 complaints. The component named most often is exhaust system › emission control › catalytic convertor (1 mentions).
Is there a recall for 2018 Honda Fit engine problems?
No. NHTSA lists no engine & cooling recall for the 2018 Honda Fit, though it has 4 recalls for other components. 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 2018 Honda Fit engine problems start?
Half of the complaints with a recorded mileage happened before about 65,000 miles.
Is it dangerous?
Owners linked 1 crash, 0 fires and 7 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.