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Home›Honda›2018 Honda Civic› engine problems
Owner complaints · Engine

2018 Honda Civic engine problems

58 of the 751 complaints owners filed with NHTSA about the 2018 Honda Civic name the engine (NHTSA’s “Engine” heading — the engine and its cooling system). Filed under the same heading: 70 manufacturer bulletins. Every figure below is a document in a federal file, linked; none is a failure rate, and none is a verdict on any one car.

58 complaints 8% of this model year’s 1 report a crash 1 a fire typically at 11k miles

What owners filed about the engine

Source: NHTSA complaint database
58complaints name the engine

1 of the 58 reports a crash · 1 a fire · 2 injuries. Self-reported, unverified.

Filed per year: 2018: 4 · 2019: 7 · 2020: 7 · 2021: 9 · 2022: 2 · 2023: 4 · 2024: 15 · 2025: 6 · 2026: 4

11kmiles, typically

Half of the 26 owners who gave an odometer reading reported the engine problem between 7,000 and 60,000 miles. A median of reports, not the life of a part.

8%of this model year’s complaints

751 complaints in all about the 2018 Honda Civic, 4 filed in 2026. The whole picture, every system →

Counts are owner reports to NHTSA, not verified defects, and scale with how many of these were sold; nothing here is a rate. NHTSA groups complaints coarsely, so “Engine” means the same area of the vehicle, not one fault.

Across model years: Honda Civic engine problems, every year on file →

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In owners’ own words

Source: NHTSA complaint database

Filed with NHTSA by the people who own these cars, about the engine. Quoted as written, with anything identifying removed; unverified reports — what was said, not a finding that it was true.

It is a common issue on the Honda Civic Type R from 2017 to 2021 in which water will leak through the hood scoop causing water to drip onto cylinder 4 causing a misfire. Misfire No. 4 Cylinder (DTC P0304). There is a TSB for it under 25-062 for this same issue. Water could enter the hood scoop and accumulate down inside the no.
Engine May 28, 2026 NHTSA owner report
2018 Honda Civic hatchback, gasoline smell in cabin occurred on 8/16/2019. 1.5l oil dilution could be cause of issue
Engine Aug 16, 2019 NHTSA owner report
The contact owns a 2018 Honda Civic. While driving approximately 25 MPH, the vehicle suddenly stalled. The vehicle's stop warning alert notified the driver to pull over. The vehicle was taken to scott robinson Honda (20340 hawthorne blvd, torrance, ca 90503) to be diagnosed, but they were unable to replicate the failure.
Engine at 11,200 miles Aug 12, 2019 NHTSA owner report
Accelerating up to 60 MPH car began to jerk violently. Flashing check engine light came on and all control of gas petal was lost until car slowed to under 20 - 25 MPH. Obd2 codes pulled and reported misfiring in cylinder 1. Car not able to be driven under any normal conditions as misfiring has intensified. 2018 Honda Civic si
Engine at 10,015 miles May 28, 2019 NHTSA owner report
Oil diluted with fuel (3/4" above the full mark on the dipstick) - this is a problem with honda's 1.5 turbo engine (Civic, crv). Others with this issue have reported their vehicles stalling while driving at 70 MPH -- definitely a safety issue
Engine at 7,000 miles Apr 21, 2019 NHTSA owner report

What is on file about the engine

Source: NHTSA recalls, investigations and manufacturer communications

70 manufacturer bulletins filed under this heading

The 8 newest are listed; every one is on the model year’s page. Quote the document number at a service desk — it is a diagnosis the maker has already written down.

Trouble codes named on this system

P0300 P0302 P0301 P0304 P0303 P0035

Codes a bulletin or an owner’s complaint about the 2018 Honda Civic names on this model year; a code with a record of its own links it.

Other systems with a record on the 2018 Honda Civic

Source: the same files
From here
Every 2027 model on file, by price Compare two vehicles, trim vs trim See what a VIN was priced at See what owners reported

Common questions

Source: NHTSA complaint database, recalls and manufacturer communications

Are engine problems common on the 2018 Honda Civic?

They are documented: NHTSA holds 58 owner complaints naming the engine on this model year (8% of everything owners filed about it), and 70 manufacturer bulletins are filed under the same heading. Whether it is a problem on one particular car is a diagnosis, not a count, and a count says nothing about how many were sold.

Is there a recall for the engine on the 2018 Honda Civic?

No recall campaign is filed under this heading for this model year (there are 6 filed under other headings). A bulletin is not a recall: it carries no federal duty to repair for free.

When do engine problems show up on the 2018 Honda Civic?

Owners who gave an odometer reading reported it at a median of 11,200 miles; half of them between 7,000 and 60,000. That is when reports cluster, not the life of a part.

What does NHTSA's "Engine" heading cover?

The engine and its cooling system. Owners choose the heading when they file, so it says which area of the vehicle the complaint is about, not which part failed.