2018 Honda Fit Service and Repair Manual

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Factory-Grade Data

2018 Honda Fit 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

  • EX-L Hatchback 4-Door
  • Hit Hatchback 4-Door
  • Sport Hatchback 4-Door
  • DX Hatchback 4-Door
  • Fun Hatchback 4-Door
  • LX Hatchback 4-Door
  • EX Hatchback 4-Door

Engines covered

  • 1.5L 1497CC 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 Fit Recalls & Complaints

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 #23V04600002/02/2023Component: BACK OVER PREVENTION:DISPLAY FUNCTION

Honda (American Honda Motor Co.) is recalling certain 2018-2020 Fit and 2019-2022 HR-V vehicles. The rearview camera image may not display when the engine is started with a key, due to a design error

Consequence

An inoperative rearview camera display can reduce the driver's rear visibility, increasing the risk

Remedy

Dealers will update the display audio unit software, free of charge. Owner notification letters wer

TSB #11000132

Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018 Fits with customer complaint of Check Engine Light (CEL) on with DTC P0420 [Catalyst System Efficiency Below Threshold] stored. To better understand the cau

TSB #10253302

Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018 Fits with customer complaint of Check Engine Light (CEL) on with DTC P0420 [Catalyst System Efficiency Below Threshold] stored. To better understand the cau

TSB #10252468

Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2018 Fits with customer complaint of Check Engine Light (CEL) on with DTC P0420 [Catalyst System Efficiency Below Threshold] stored. To better understand the cau

TSB #10250729

Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2017-2018 Fits with customer complaint of Check Engine Light (CEL) on with DTC P0420 (Catalyst System Efficiency Below Threshold) stored. To better understand th

TSB #10250329

Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2017-2018 Fits with customer complaint of Check Engine Light (CEL) on with DTC P0420 (Catalyst System Efficiency Below Threshold) stored. To better understand th

TSB #10249201

Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2017-2018 Fits with customer complaint of Check Engine Light (CEL) on with DTC P0420 (Catalyst System Efficiency Below Threshold) stored. To better understand th

TSB #10248678

Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2017-2018 Fits with customer complaint of Check Engine Light (CEL) on with DTC P0420 (Catalyst System Efficiency Below Threshold) stored. To better understand th

TSB #10246405

Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2017-2018 Fits with customer complaint of Check Engine Light (CEL) on with DTC P0420 (Catalyst System Efficiency Below Threshold) stored. To better understand th

Showing the 8 most recent of 48 technical service bulletins on file with NHTSA.

20260119Component: AIR BAGSCrash reported1 injured

Front end accodent totaled car, but airbags never deployed

20230808Component: ELECTRICAL SYSTEMCrash reported1 injured

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).

20230808Component: ENGINECrash reported1 injured

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).

20230808Component: FUEL/PROPULSION SYSTEMCrash reported1 injured

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).

20191028Component: STRUCTURE:BODYCrash reported

I WAS ON FM529 IN THE LEFT HAND TURN LANE HEADING TOWARDS THE SOLID GREEN LIGHT, AS I WAS APPROACHING THE LIGHT I STARTED SLOWING DOWN AND NOTICED IN MY LEFT PERIPHERAL VISION A BLACK CAR WAITING TO P

Showing the 5 most serious of 158 complaints filed with NHTSA.

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