2020 Honda Ridgeline Service and Repair Manual
2020 Honda Ridgeline 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
- RTL Crew Cab Pickup 4-Door
- EX-L Crew Cab Pickup 4-Door
- Black Edition Crew Cab Pickup 4-Door
- Sport Crew Cab Pickup 4-Door
- Touring Crew Cab Pickup 4-Door
- RTL-E Crew Cab Pickup 4-Door
Engines covered
- 3.5L 3471CC V6 GAS SOHC 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 2019 Passport, 2016-2019 Pilot, and 2017-2020 Ridgeline vehicles. The hood latch striker may become damaged and separate from the hood, which can
A hood that opens while driving can obstruct the driver's view and increase the risk of a crash.
Dealers will either repair the hood latch striker, or replace the hood if necessary, free of charge.
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 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 all Honda Genuine Accessory Tonneau Covers, part number 08Z07-T6Z-100F, sold for installation on 2017-2020 Ridgeline trucks. If the tonneau cover is not
A separated panel may become a road hazard, increasing the risk of crash or injury.
Honda will notify all registered owners of 2017-2020 Honda Ridgelines, and dealers will install teth
Honda (American Honda Motor Co) is recalling certain 2020-2021 Pilot and Ridgeline, and 2020-2022 Passport and Odyssey vehicles. The heating pads behind both side-view mirrors may not be bonded prope
Detached mirror glass can reduce driver visibility, increasing the risk of a crash.
Dealers will replace both left and right side-view mirrors, free of charge. Owner letters were mail
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 - One or more accessory running board lights are flickering or not working due to a faulty running board light assembly.
Service Bulletin - Under certain circumstances, after coming to a stop and engaging idle stop, the vehicle may not restart automatically due to excessive cylinder pressure and/or low cranking torque. Typically, the customer can immediately
Service Bulletin - The AWD warning light is on potentially due to water intrusion into the rear differential pump motor connector area that corrodes the terminals.
Service Bulletin - Customer complaint of the A/C not blowing cold air due to Oil/Refrigerant leak from the A/C compressor shaft seal.
Service Bulletin - MIL flashes and vehicle will not accelerate, low power. After cycling the ignition, the symptom does not return with no stored DTCs. This issue is more common in regions with cold weather (specifically near or below freez
Service Bulletin - The MIL flashes and vehicle will not accelerate, low power. After cycling the ignition, the symptom does not return with no stored DTCs. This issue is more common in regions with cold weather (specifically near or below f
Service Bulletin - Customer complaint received regarding the A/C not blowing cold air due to an oil/refrigerant leak from the A/C compressor shaft seal.
Service NewsDue to On-Board Diagnostic (OBD) regulation change starting with 2019 vehicles, American Hondas Variable Valve Timing and Lift Electronic Control (VTEC) On-Board Diagnostic monitors are now included in the EGR/VVT OBD Monitor Re
Showing the 8 most recent of 76 technical service bulletins on file with NHTSA.
The contact owns a 2020 Honda Ridgeline. The contact stated that while driving at approximately 35 MPH, a large sheep ran out of a yard and crashed into her vehicle with its head and horns on the driv
The contact owns a 2020 Honda Ridgeline. The contact stated that while driving at approximately 35 MPH, a large sheep ran out of a yard and crashed into her vehicle with its head and horns on the driv
While stopped in heavy traffic at a traffic signal, the engine stopped and would not restart. This was due to the AIS system. The car became disabled in heavy traffic. I was only a few feet from the e
While stopped in heavy traffic at a traffic signal, the engine stopped and would not restart. This was due to the AIS system. The car became disabled in heavy traffic. I was only a few feet from the e
While stopped in heavy traffic at a traffic signal, the engine stopped and would not restart. This was due to the AIS system. The car became disabled in heavy traffic. I was only a few feet from the e
Showing the 5 most serious of 214 complaints filed with NHTSA.
