Honda Clarity Service Bulletins (2018)

46 manufacturer communications on file.

November 14, 2023•Document ID: 10245549
Service Bulletin/Repair Instructions
POWER TRAIN; ELECTRICAL SYSTEM
Mfr Comm. #:
A18-090
Date Added:
November 29, 2023
Manufacturer:
HONDA
Summary
Service Bulletin - There is a software problem in the PCM, which may cause the MIL to come on with DTC P26A3 (electric water valve malfunction), DTC P100C (electric VTC motor speed signal circuit malfunction) and/or P0010 (variable valve timing control [VTC] malfunction). There are up to three updates that must be performed on applicable vehicles.
Associated Products (1)
2018 Honda Clarity
Associated Documents
- Download MC-10245549-0001.pdf↗
September 21, 2022•Document ID: 10222081
Service Bulletin/Repair Instructions
ELECTRICAL SYSTEM
Mfr Comm. #:
ONL6CK09212022
Date Added:
September 27, 2022
Manufacturer:
HONDA
Summary
Owner's Notification Letter - Product Update - Our records indicate that a Product Update has not been completed on this vehicle (Vehicle Identification Number XXXXXXXXXXXXXXXXX). The software that monitors the temperature in the fuel cell tank may not be up to date. This may cause the vehicle to incorrectly display a hydrogen system warning on the instrument panel and store a system malfunction.
Associated Products (2)
2018 Honda Clarity 2017 Honda Clarity
Associated Documents
- Download MC-10222081-0001.pdf↗
September 16, 2022•Document ID: 10220351
Service Bulletin/Repair Instructions
ELECTRICAL SYSTEM
Mfr Comm. #:
A22090A
Date Added:
September 22, 2022
Manufacturer:
HONDA
Summary
Dealer Message - In the event you experience a sub tank wire harness rodent damage on the 2017â2020 Clarity FCV, after repairing / replacing the wire harness, wrap the areas shown below with RODENT DETERRENT TAPE, P/N 4019-2317.
Associated Products (4)
2020 Honda Clarity 2019 Honda Clarity 2018 Honda Clarity 2017 Honda Clarity
Associated Documents
- Download MC-10220351-0001.pdf↗
September 15, 2022•Document ID: 10220360
Service Bulletin/Repair Instructions
FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM
Mfr Comm. #:
ONL6PH09152022
Date Added:
September 22, 2022
Manufacturer:
HONDA
Summary
Owner's Notification Letter - Our records indicate that a PRODUCT UPDATE has not been completed on this vehicle (Vehicle Identification Number [VIN NUMBER]). On Clarity Plug-in Hybrid vehicles, there is a software error in the miles per gallon calculation, which affects the HV range display and causes it to read unusually high.
Associated Products (1)
2018 Honda Clarity
Associated Documents
- Download MC-10220360-0001.pdf↗
July 6, 2021•Document ID: 10199344
Service Bulletin/Repair Instructions
VISIBILITY
Mfr Comm. #:
ONLO9V07062021
Date Added:
July 21, 2021
Manufacturer:
HONDA
Summary
Owner Notification Letter - On some 2018-21 Clarity Plug-In Hybrid models, the A/C condenser may leak refrigerant. 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 provides coverage for the original owner and any subsequent owners. No action is required on your part unless you experience a problem.
Associated Products (4)
2021 Honda Clarity 2020 Honda Clarity 2019 Honda Clarity 2018 Honda Clarity
Associated Documents
- Download MC-10199344-0001.pdf↗
May 28, 2021•Document ID: 10194957
Service Bulletin/Repair Instructions
VISIBILITY
Mfr Comm. #:
A21-017
Date Added:
June 3, 2021
Manufacturer:
HONDA
Summary
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 factory. The A/C condenser was not manufactured to specification. As a result, corrosion may develop in the form of tiny holes in the condenser tube walls that allow the refrigerant to leak out. This does not apply to any vehicle that has a leaking condenser due to foreign object damage. It also does not apply to any vehicle that has ever been declared a total loss or sold for salvage by a financial institution or insurer, or has a branded or similar title under any state's law.
Associated Products (3)
2020 Honda Clarity 2019 Honda Clarity 2018 Honda Clarity
Associated Documents
- Download MC-10194957-0001.pdf↗
May 28, 2021•Document ID: 10194978
Service Bulletin/Repair Instructions
VISIBILITY
Mfr Comm. #:
ABOM05282021
Date Added:
June 3, 2021
Manufacturer:
HONDA
Summary
Dealer Message - Today, May 28, 2021, American Honda is announcing a warranty extension for certain 2018-2020 Accord and Accord Hybrid, 2018-2020 Civic, 2017-2021 Civic Hatch, 2017-2021 Civic Type R, 2018-2021 Clarity PHEV, and 2019-2021 Insight vehicles. This warranty extension covers the A/C condenser to address concerns of leaking refrigerant. American Honda is extending the warranty on the A/C condenser to 10 years from the original date of purchase.
Associated Products (17)
2021 Honda Civic 2021 Honda Insight 2020 Honda Accord 2020 Honda Civic 2020 Honda Civic Type R 2020 Honda Clarity 2020 Honda Insight 2019 Honda Accord 2019 Honda Civic 2019 Honda Civic Type R 2019 Honda Clarity 2019 Honda Insight 2018 Honda Accord 2018 Honda Civic 2018 Honda Clarity 2017 Honda Civic 2017 Honda Civic Type R
Associated Documents
- Download MC-10194978-0001.pdf↗
February 11, 2021•Document ID: 10187007
Service Bulletin/Repair Instructions
POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING
Mfr Comm. #:
A21-008
Date Added:
February 18, 2021
Manufacturer:
HONDA
Summary
Service Bulletin - The Hybrid System Failure message comes on the MID, and DTC P1D8D (Generator Motor Inverter Short) is stored.
Associated Products (3)
2020 Honda Clarity 2019 Honda Clarity 2018 Honda Clarity
Associated Documents
- Download MC-10187007-0001.pdf↗
December 9, 2020•Document ID: 10184316
Service Bulletin/Repair Instructions
FUEL SYSTEM, GASOLINE
Mfr Comm. #:
A20-092
Date Added:
December 19, 2020
Manufacturer:
HONDA
Summary
Service Bulletin - The customer cannot refuel the vehicle completely at certain hydrogen stations.
Associated Products (4)
2020 Honda Clarity 2019 Honda Clarity 2018 Honda Clarity 2017 Honda Clarity
Associated Documents
- Download MC-10184316-0001.pdf↗
October 21, 2020•Document ID: 10181841
Service Bulletin/Repair Instructions
FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
Mfr Comm. #:
A20-061
Date Added:
October 29, 2020
Manufacturer:
HONDA
Summary
Service Bulletin - The MIL comes on with DTC P1FBF (air pump controller failure [internal failure warning]) during startup.
Associated Products (3)
2019 Honda Clarity 2018 Honda Clarity 2017 Honda Clarity
Associated Documents
- Download MC-10181841-0001.pdf↗
September 2, 2020•Document ID: 10179515
Service Bulletin/Repair Instructions
FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY
Mfr Comm. #:
A20-061
Date Added:
September 9, 2020
Manufacturer:
HONDA
Summary
Service Bulletin - The MIL comes on with DTC P1FBF (air pump controller failure [internal failure warning]) during startup.
Associated Products (3)
2019 Honda Clarity 2018 Honda Clarity 2017 Honda Clarity
Associated Documents
- Download MC-10179515-0001.pdf↗
April 6, 2020•Document ID: 10173877
Service Bulletin/Repair Instructions
FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY; ELECTRICAL SYSTEM
Mfr Comm. #:
A19-054_version3
Date Added:
April 16, 2020
Manufacturer:
HONDA
Summary
Service Bulletin - The fuel cell (FC) system uses an electric water pump to circulate insulating fluid and remove excess heat from the fuel cell stack. During manufacturing, the water pump's magnetic surface was not treated for corrosion resistance. Over time, the corrosion may prevent the water pump's motor from starting, which will prevent the vehicle from starting. If this happens while driving, the vehicle can only be driven for a short distance at greatly reduced power.
Associated Products (2)
2018 Honda Clarity 2017 Honda Clarity
Associated Documents
- Download MC-10173877-0001.pdf↗
April 6, 2020•Document ID: 10173876
Service Bulletin/Repair Instructions
FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY; ELECTRICAL SYSTEM
Mfr Comm. #:
A19-006
Date Added:
April 16, 2020
Manufacturer:
HONDA
Summary
Service Bulletin - Water improperly discharged inside the fuel cell (FC) stack mixes with hydrogen and oxygen, generating hydrogen peroxide. The hydrogen peroxide/water combination concentrates in one area, accelerating the deterioration of the electrolyte membrane in the fuel cell. This deterioration can reduce fuel cell output.
Associated Products (2)
2018 Honda Clarity 2017 Honda Clarity
Associated Documents
- Download MC-10173876-0001.pdf↗
October 17, 2019•Document ID: 10166784
Service Bulletin/Repair Instructions
ELECTRICAL SYSTEM; VISIBILITY; ENGINE AND ENGINE COOLING
Mfr Comm. #:
A18-090
Date Added:
October 29, 2019
Manufacturer:
HONDA
Summary
Service Bulletin - There is a software problem in the PCM, which may cause the MIL to come on with DTC P26A3 (electric water valve malfunction), DTC P100C (electric VTC motor speed signal circuit malfunction) and/or P0010 (variable valve timing control [VTC] malfunction).
Associated Products (1)
2018 Honda Clarity
Associated Documents
- Download MC-10166784-0001.pdf↗
June 27, 2019•Document ID: 10162001
Service Bulletin/Repair Instructions
VISIBILITY; ELECTRICAL SYSTEM
Mfr Comm. #:
APOC06272019
Date Added:
July 4, 2019
Manufacturer:
HONDA
Summary
Dealer Message - On October 4, 2018, American Honda announced several Product Update Campaigns for certain 2018 Honda Clarity Plug-In Hybrid (PHEV) models. Replacement CPU Assembly Auto AC Kits and Warranty CD's were available at the time of bulletin launch.
Associated Products (1)
2018 Honda Clarity
Associated Documents
- Download MC-10162001-0001.pdf↗
June 14, 2019•Document ID: 10161308
Service Bulletin/Repair Instructions
ELECTRICAL SYSTEM
Mfr Comm. #:
A19-054_version2
Date Added:
June 19, 2019
Manufacturer:
HONDA
Summary
Service Bulletin - The fuel cell (FC) system uses an electric water pump to circulate insulating fluid and remove excess heat from the fuel cell stack. During manufacturing, the water pump's magnetic surface was not treated for corrosion resistance. Over time, the corrosion may prevent the water pump's motor from starting, which will prevent the vehicle from starting. If this happens while driving, the vehicle can only be driven for a short distance at greatly reduced power.
Associated Products (2)
2018 Honda Clarity 2017 Honda Clarity
Associated Documents
- Download MC-10161308-0001.pdf↗
June 4, 2019•Document ID: 10161237
Service Bulletin/Repair Instructions
ELECTRICAL SYSTEM; FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
Mfr Comm. #:
A19-054
Date Added:
June 12, 2019
Manufacturer:
HONDA
Summary
Service Bulletin - The fuel cell (FC) system uses an electric water pump to circulate insulating fluid and remove excess heat from the fuel cell stack. During manufacturing, the water pump's magnetic surface was not treated for corrosion resistance. Over time, the corrosion may prevent the water pump's motor from starting, which will prevent the vehicle from starting. If this happens while driving, the vehicle can only be driven for a short distance at greatly reduced power.
Associated Products (2)
2018 Honda Clarity 2017 Honda Clarity
Associated Documents
- Download MC-10161237-0001.pdf↗
June 4, 2019•Document ID: 10161235
Service Bulletin/Repair Instructions
ELECTRICAL SYSTEM; FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
Mfr Comm. #:
A19-006
Date Added:
June 12, 2019
Manufacturer:
HONDA
Summary
Service Bulletin - Water improperly discharged inside the fuel cell stack mixes with hydrogen and oxygen, generating hydrogen peroxide. The hydrogen peroxide/water combination concentrates in one area, accelerating the deterioration of the electrolyte membrane in the fuel cell. This deterioration can reduce fuel cell output.
Associated Products (2)
2018 Honda Clarity 2017 Honda Clarity
Associated Documents
- Download MC-10161235-0001.pdf↗
May 16, 2019•Document ID: 10160545
Service Bulletin/Repair Instructions
STEERING
Mfr Comm. #:
A19050B
Date Added:
May 30, 2019
Manufacturer:
HONDA
Summary
ServiceNews Article - When removing and installing a cable reel, you need to keep both the cable reel and the steering angle sensor in position. If you don't , the VSA indicator may come on along with one or more VSA DTCs. And when you run the Neutral Memorization Procedure in the i-HDS, it won't complete.
Associated Products (43)
2019 Honda Clarity 2019 Honda Fit 2019 Honda HR-V 2019 Honda Odyssey 2019 Honda Passport 2019 Honda Pilot 2019 Honda Ridgeline 2018 Honda Clarity 2018 Honda Fit 2018 Honda HR-V 2018 Honda Odyssey 2018 Honda Pilot 2018 Honda Ridgeline 2017 Honda Accord 2017 Honda Clarity 2017 Honda Fit 2017 Honda HR-V 2017 Honda Odyssey 2017 Honda Pilot 2017 Honda Ridgeline+ 23 more
Associated Documents
- Download MC-10160545-0001.pdf↗
March 26, 2019•Document ID: 10156633
Service Bulletin/Repair Instructions
VISIBILITY; ENGINE AND ENGINE COOLING; POWER TRAIN
Mfr Comm. #:
ONL6VT03262019
Date Added:
April 6, 2019
Manufacturer:
HONDA
Summary
Owner Notification Letter - On Clarity Plug-in Hybrid vehicles, there may be a software problem in the powertrain control module (PCM), causing a malfunction indicator light to come on and store one or more diagnostic trouble codes (DTCs).
Associated Products (1)
2018 Honda Clarity
Associated Documents
- Download MC-10156633-0001.pdf↗

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