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Engine & cooling

2021 Honda Civic Engine problems

Owners have filed 6 complaints about the 2021 Honda Civic's engine & cooling with NHTSA - 4% of all its complaints, most recently on June 9, 2026. They describe 0 crashes, 1 fire and 0 injuries. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.

Complaints
6
Recalls
0
Crashes
0
Fires
1
Injuries
0
Deaths
0

Engine complaints

Engine & coolingFuel system

High pressure fuel pump issue diagnosed by mechanic. The models prior to mine up to and some 2021 vehicles were included in the recall but my VIN is not considered within the recall. My vehicle is a very early 2021 bought in 202 that likely has the same fuel filter as 2020sz

Filed Incident Engine · Fuel / propulsion systemNHTSA 11743031
Engine & coolingFire

While driving the car began to smoke from under hood and engine stopped. Interior and under hood flooded with smoke and fire under hood. This was a major fire, fire company put it out. No repairs were made or needed on car since purchase October 2024.

Filed Incident EngineNHTSA 11733110
BrakesEngine & coolingAcceleration & cruise control

The contact owns a 2021 Honda Civic. The contact stated that while driving approximately 37 MPH, the vehicle stalled. The check engine, master cylinder, and adaptive cruise control warning lights were illuminated. The vehicle was taken to a dealer, where it was diagnosed and determined that the brake master cylinder, fuel pump, and ignition coils needed to be replaced. The contact researched and was made aware of an unknown recall; however, the VIN was not under recall. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 108,000.

Filed Incident Service brakes, hydraulic · Engine and engine cooling · Vehicle speed controlNHTSA 11709926
Engine & coolingFuel system

The 2021 Honda Civic experienced an emission system failure at 70,000 MPH and detected fault code p0340, possibly an injector failure

Filed Incident Engine · Fuel / propulsion systemNHTSA 11589806
Engine & coolingFuel system

I was notified of a Safety Recall by American Honda regarding the fuel pump module. I contacted to dealership and they are stating they will not have a remedy within a reasonable time period (60 days), rather they will have the parts available for a remedy in the fall of 2024, which is over six months away. Per the recall information provided on this website, they are supposed to have a way to fix this issue within 60 days from the date I contact them, but they won't even offer an inspection to see if the defect exists on my car.

Filed Incident Engine · Fuel / propulsion systemNHTSA 11572422
Electrical systemBrakesEngine & cooling

Three issues I been having every since I got my car. 1. Car navigation displays not working properly, screen completely freezes or black-out. 2. Brake warning sign appears randomly in dashboard even if theres no vehicle in front, probably an issue with the car detection sensor camera . 3 Probably the most important. The car shuts down. Oil light and battery light shows in dashboard when this happens, usually when the vehicle is coming to a stop. This is an outgoing issue that is really concerning. I have take...

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the car multiple times to the dealer and the have failed to solve any of this issues, the previously told me it was the turbo but never replace it, then i was told it was the electronic wastegate nothing was done then, now two days ago April 21, 2022 this happen again, haven't take the car to the dealer because I know they aren't going to do anything about it.

Filed Incident Electrical system · Service brakes · EngineNHTSA 11461876

Honda Civic engine complaints by year

Civic engine problems, every year

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Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data

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