2020 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
- Sport Plus Coupe 2-Door
- DX Sedan 4-Door
- Si Coupe 2-Door
- EX Sedan 4-Door
- Sport Touring Hatchback 4-Door
- LX Coupe 2-Door
- Touring Sedan 4-Door
- EX Coupe 2-Door
- EX Hatchback 4-Door
- LX Sedan 4-Door
- Sport Coupe 2-Door
- Sport Sedan 4-Door
- i-Style Sedan 4-Door
- Sport Hatchback 4-Door
- Touring Coupe 2-Door
- LX Hatchback 4-Door
- EX-L Sedan 4-Door
- Si Sedan 4-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
Honda (American Honda Motor Co.) is recalling certain 2020-2021 Civic, 2020-2023 Ridgeline, 2021-2023 Passport, 2021-2022 Pilot, and 2020 Acura MDX vehicles. The tie rod fastener that connects the br
Brake master cylinder separation can cause a loss of brake function and increase the risk of a crash
Dealers will inspect and repair the brake booster assembly as necessary, free of charge. Owner noti
Honda (American Honda Motor Co.) is recalling certain 2019-2020 Acura MDX, MDX Sport Hybrid, RDX, TLX, Honda Accord, Civic Hatchback, Insight, 2019 Acura ILX, Honda Accord Hybrid, Civic Coupe, Civic C
Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.
Honda will notify owners, and dealers will replace the fuel pump assembly, free of charge. Owner le
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,
Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.
Dealers will replace the fuel pump module, free of charge. Owner letters were mailed September 6, 2
Honda (American Honda Motor Co.) is recalling certain 2020-2022 Pilot, Accord, Civic sedan, HR-V, Odyssey, 2020 Civic coupe, Fit, 2021-2022 Civic hatchback, 2021 Civic Type R, Insight, 2020-2021 CR-V,
An air bag that deploys unintentionally during a crash can increase the risk of injury.
Dealers will replace the seat weight sensors, free of charge. Owner notification letters were maile
Service Bulletin - Oil leak at timing chain tensioner inspection cover due to possible insufficient sealant adhesion on inspection cover.
Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2020-2021 Civics, 2020-2022 CR-Vs, 2022-2023 Pilots & Passports with a customer complaint of the center display flickering, flashing, or frozen (Civics and CR-Vs
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
Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2020-2021 Civics, 2020-2022 CR-Vs, 2022-2023 Pilots & Passports with a customer complaint of the center display flickering, flashing, or frozen (Civics and CR-Vs
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
Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2020-2021 Civics, 2020-2022 CR-Vs, 2022-2023 Pilots & Passports with a customer complaint of the center display flickering, flashing, or frozen (Civics and CR-Vs
Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2020-2021 Civics, 2020-2022 CR-Vs, 2022-2023 Pilots & Passports with a customer complaint of the center display flickering, flashing, or frozen (Civics and CR-Vs
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,
Showing the 8 most recent of 156 technical service bulletins on file with NHTSA.
I WAS IN A WRECK MAY 2020. I SWERVED TO MISS A DEER AND HIT A CONCRETE COLVERT, THE VEHICLE LAUNCHED AND MY AIRBAGS DIDN'T GO OFF. VEHICLE CAUGHT FIRE, MY MOTOR, TRANSMISSION, AND TIRES CAME OFF. I SU
I WAS IN A WRECK MAY 2020. I SWERVED TO MISS A DEER AND HIT A CONCRETE COLVERT, THE VEHICLE LAUNCHED AND MY AIRBAGS DIDN'T GO OFF. VEHICLE CAUGHT FIRE, MY MOTOR, TRANSMISSION, AND TIRES CAME OFF. I SU
I WAS IN A WRECK MAY 2020. I SWERVED TO MISS A DEER AND HIT A CONCRETE COLVERT, THE VEHICLE LAUNCHED AND MY AIRBAGS DIDN'T GO OFF. VEHICLE CAUGHT FIRE, MY MOTOR, TRANSMISSION, AND TIRES CAME OFF. I SU
The contact owned a 2020 Honda Civic. The contact's son was driving the vehicle at 30 mph and while making a right turn, the vehicle failed to turn to cause the driver to crash into a city bus head-on
WE WERE TRAVELING EAST ON HWY 63 GOING HOME. THE LANE DEPARTURE ASSIST CAME ON BUT WE WERE NOT OUT OF LANE. WE KEPT TRAVELING A LITTLE FURTHER AND THE STEERING WAS STIFF. WE WERE TRAVELING ABOUT 53
Showing the 5 most serious of 286 complaints filed with NHTSA.
