2018 Honda Civic Service and Repair Manual

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Factory-Grade Data

2018 Honda Civic service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Designed for technicians and DIY owners, this manual helps you diagnose issues correctly, follow proven repair steps, and use wiring diagrams and system sections to track faults faster.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Electrical diagnostics with wiring diagrams
  • Coverage across major systems: engine, transmission/driveline, brakes, steering, suspension, HVAC, and more

Trims covered

  • Turbo Plus Sedan 4-Door
  • Type R Hatchback 4-Door
  • EX-L Hatchback 4-Door
  • DX Sedan 4-Door
  • Si Coupe 2-Door
  • EX Sedan 4-Door
  • Sport Touring Hatchback 4-Door
  • EX-T Coupe 2-Door
  • LX Coupe 2-Door
  • SE Sedan 4-Door
  • Touring Sedan 4-Door
  • EX Hatchback 4-Door
  • LX Sedan 4-Door
  • EX-L Coupe 2-Door
  • i-Style Sedan 4-Door
  • Sport Hatchback 4-Door
  • EX-T Sedan 4-Door
  • Touring Coupe 2-Door
  • LX-P Coupe 2-Door
  • LX Hatchback 4-Door
  • EX-L Sedan 4-Door
  • Si Sedan 4-Door
  • Coupe Coupe 2-Door

Engines covered

  • 1.5L 1497CC l4 GAS DOHC Turbocharged
  • 2.0L 1996CC 122Cu. In. l4 GAS DOHC Turbocharged
  • 2.0L 1996CC 122Cu. In. l4 GAS DOHC Naturally Aspirated

Index / Table of contents

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Hybrid & Electric Vehicle Systems
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Wiring Diagrams

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Vehicle Safety Data

2018 Honda Civic Recalls & Complaints

NHTSA #20V31400028/05/2020Component: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

Honda (American Honda Motor Co.) is recalling certain 2018-2019 Acura NSX, 2019 Acura RDX, RLX and RLX Sport Hybrid, 2018-2019 Honda Accord, Civic Hatchback, Civic Type R and HR-V, 2019-2020 Insight a

Consequence

If the fuel pump fails, the engine can stall while driving, increasing the risk of a crash.

Remedy

Honda will notify owners and dealers will replace the fuel pump assembly, free of charge. The recal

NHTSA #23V85800018/12/2023Component: FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

Honda (American Honda Motor Co.) is recalling certain 2013-2023 Honda Accord, Civic Coupe, Civic Sedan, Civic Hatchback, Civic Type R, CR-V, HR-V, Ridgeline, Odyssey, Acura ILX, MDX, MDX Hybrid, RDX,

Consequence

Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.

Remedy

Dealers will replace the fuel pump module, free of charge. Owner letters were mailed September 6, 2

NHTSA #18V81700016/11/2018Component: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

Honda (American Honda Motor Co.) is recalling certain 2017-2018 Honda Civic Hatchback and Civic Type R vehicles. The owners guide in these vehicles may not have been included or if included, the own

Consequence

If the information is missing or improper, it can increase the risk of injury or a crash.

Remedy

Honda will notify owners, and dealers will replace the owners information kit, free of charge. The

TSB #11021745

Service Bulletin - Oil leak at timing chain tensioner inspection cover due to possible insufficient sealant adhesion on inspection cover.

TSB #11006249

Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2020 Accords, 2016-2020 Civics, 2017-2020 CR-Vs, & 2018-2020 Odysseys that have been diagnosed to be in need of the low-pressure fuel pump, fuel strainer, f

TSB #11005271

Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2020 Accords, 2016-2020 Civics, 2017-2020 CR-Vs, & 2018-2020 Odysseys that have been diagnosed to be in need of the low-pressure fuel pump, fuel strainer, f

TSB #11004264

Dealer Message - Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2020 Accords, 2016-2020 Civics, 2017-2020 CR-Vs, & 2018-2020 Odysseys that have been diagnosed to be in need of the low-pressure fuel pump,

TSB #11002711

Service Bulletin - Due to a new North America regulation which introduces a new refrigerant and oil requirement, the compressor shaft seal may leak. American Honda is extending the warranty on the A/C compressor shaft seal from the original

TSB #11002705

Service Bulletin - American Honda is extending the warranty on the A/C condenser to 10 years from the original date of purchase with unlimited miles. This warranty extension only covers vehicles that have a defective A/C condenser from the

TSB #11001420

Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2020 Accords, 2016-2020 Civics, 2017-2020 CR-Vs, & 2018-2020 Odysseys that have been diagnosed to be in need of the low-pressure fuel pump, fuel strainer, f

TSB #11000134

Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018-2020 Accords, 2016-2020 Civics, 2017-2020 CR-Vs, & 2018-2020 Odysseys that have been diagnosed to be in need of the low-pressure fuel pump, fuel strainer, f

Showing the 8 most recent of 231 technical service bulletins on file with NHTSA.

20240107Component: AIR BAGSCrash reported6 injured

Was in a car accident [XXX] and air never deployed instead a warning starting flashing saying something was wrong with my air . I was in 3 car pile up and terrain truck went under my car and slung it

20250103Component: ENGINECrash reported2 injured

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 b

20250103Component: FUEL SYSTEM, GASOLINECrash reported2 injured

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 b

20200216Component: SEAT BELTSCrash reported1 injured1 fatalities

MAKING A LEFT TURN AT ABOUT 15 TO 20 MPH WHEN OTHER CAR TRYING BEAT THE LIGHT DOING ABOUT 50 MPH RESULTING ME HITTING HIM BROADSIDE. THE AIR BAGS DEPLOYED PROPERLY BUT THE SEAT BELT FAILED. THE SEAT

20200622Component: AIR BAGSCrash reported1 injured

I HAD AN ACCIDENT ON JUNE 16 2020. A TRAILER HIT MY CAR IN THE BACK AND PULL ME OUT OF THE ROAD. AIRBAGS DID NOT DEPLOY. *TR

Showing the 5 most serious of 829 complaints filed with NHTSA.

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