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What 598 owners told NHTSA about the 2018 Honda Civic Si

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (598)Crash / fire / injury (36)Steering (224)Fuel system (159)Electrical system (51)Engine (50)Brakes (21)Airbags (20)Body & structure (19)Transmission & drivetrain (14)Visibility & wipers (13)Driver assistance (8)

3 of 598 complaints match · Fuel system · crash/fire/injury only · clear filters

Jan 3, 2025Fuel systemEngineCrash2 injuries

The contact owns a 2018 Honda Civic. The contact stated while driving on a decline of a public garage road and depressing the brake pedal, the vehicle stalled. The contact continuously depressed the brake pedal, but the vehicle failed to respond, and the power steering became inoperable. The vehicle rolled at approximately 20-30 MPH and crashed into the wall of the garage. The wall sustained minor damage. There was no warning light illuminated. The contact stated that messages advising of engine system failure, supplementary restraint system failure, and electric power steering failure were displayed on the vehicle mobile app. The front driver's side and passenger's side air bags deployed. The emergency units arrived and provided first aid to both the contact and his sister, who was occupying the front passenger's side seat during the incident. The contact's sister sustained chest pain and was in the process of receiving medical assistance. The contact sustained lower back pain and was in the process of receiving medical assistance. No police report was filed. The vehicle was towed to the dealer but was not diagnosed. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Number: 23V858000(Fuel System, Gasoline); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not notified of the failure. The failure mileage was approximately 60,000. Parts distribution disconnect.

NHTSA ODI 11633908

Feb 13, 2024Fuel systemCrash

The contact owned a 2018 Honda Civic. The contact stated while driving at approximately 30 MPH a warning that read "analyzing the system" appeared on the instrument cluster, then the steering wheel independently veered to the right. The contact stated that he crashed into a vehicle parked on the side of the road. The contact stated that his vehicle's front passenger-side bumper struck the rear driver-side bumper and tire of the parked vehicle. The contact stated that all of his vehicle's air bags deployed. The contact stated that the damage to his vehicle was to the front passenger side bumper and headlights which were crushed by the crash force. The contact stated that the right front tire was damaged and the axle was fractured by the crash. The contact stated that he was not injured. The police were called and wrote a report. The contact stated that his vehicle was towed to an impound lot and later declared a total loss by the contact's insurance provider. The contact had recently received notification from the manufacturer about NHTSA Campaign Number: 23V858000 (Fuel System, Gasoline), but the crash and failure had occurred last month. The contact related the failure and subsequent crash to NHTSA Campaign Number: 23V858000 (Fuel System, Gasoline). The manufacturer was not informed of the failure. The failure mileage was approximately 70,000.

NHTSA ODI 11571595

Aug 23, 2018AirbagsElectronic Stability Control (esc)Fuel systemCrash

HAD TO HAVE TO MANY OIL CHANGES, ALMOST ONE A MONTH , NOT GOOD ON THE MILAGE THEN A CAMRY MAYBE WOULD HOLD OFF THAT MANY CHANGES.

NHTSA ODI 11121909

Working with the data? Download all 598 complaints as CSV · fetched from NHTSA July 19, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2018 Honda Civic Si verdict →