Technical Service Bulletins (TSBs) for the 2017 Clarity Fuel Cell are official communications between Honda & their dealerships that describe processes for troubleshooting or fixing certain common problems. All vehicle manufacturers are required by U.S. law to make their TSBs available to the public.

    STEERING

    • TSB #A19050B

      Date Announced:
      MAY 16, 2019
      NHTSA ID:
      #10160545

      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. Read More »

    • TSB #A18-013

      Date Announced:
      APR 13, 2018
      NHTSA ID:
      #10134379

      Service bulletin - The audio system volume will not change when using the remote switch on the steering wheel. There is an internal software issue with the audio-navigation unit. Read More »

    • TSB #A15060D

      Date Announced:
      AUG 03, 2017
      NHTSA ID:
      #10115757

      Service news article - To prevent damage during shipping, leather-wrapped steering wheels come with a protective plastic covering. Read More »

    STEERING:WHEEL AND HANDLE BAR

    • TSB #A15060D

      Date Announced:
      AUG 03, 2017
      NHTSA ID:
      #10115757

      Service news article - To prevent damage during shipping, leather-wrapped steering wheels come with a protective plastic covering. Read More »

    ENGINE AND ENGINE COOLING

    • TSB #APaS12052018901

      Date Announced:
      DEC 05, 2018
      NHTSA ID:
      #10151674

      "Dealer message - AHM is studying the current replacement need for the ION filter (PN 3H450-5WM-A01). We would like to collect several samples in the field for this study. Read More »

    • TSB #A18110B

      Date Announced:
      NOV 13, 2018
      NHTSA ID:
      #10149633

      "ServiceNews Article - When replacing the fuel cell stack, make sure you bleed the air from the fuel cell insulating system exactly as called out in the fuel cell insulating fluid replacement procedure in the service information. Read More »

    • TSB #A17070B

      Date Announced:
      JUL 02, 2018
      NHTSA ID:
      #10142671

      Servicenews article - The Clarity Fuel Cell vehicle has two very different cooling systems. One system cools the fuel cell system; the other one cools the inverter system. Read More »

    FUEL SYSTEM, GASOLINE

    • TSB #ATS180202

      Date Announced:
      FEB 13, 2018
      NHTSA ID:
      #10129333

      Tech Line Summary Article - After doing a Code A maintenance service (replace the FC ion exchanger filter element), is the Maintenance Minder not resetting? We?re aware of this issue and have it under investigation. Read More »

    • TSB #ATS170904

      Date Announced:
      SEP 29, 2017
      NHTSA ID:
      #10118541

      Tech line summary article - In a Code A maintenance service, you must replace the FC ion exchanger filter element. Right now, that filter element is in short supply, but we expect to have it back in stock soon. Read More »

    FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY

    • TSB #A19-006

      Date Announced:
      APR 06, 2020
      NHTSA ID:
      #10173876

      Service Bulletin - Water improperly discharged inside the fuel cell (FC) stack mixes with hydrogen and oxygen, generating hydrogen peroxide. Read More »

    • TSB #A19-054_version3

      Date Announced:
      APR 06, 2020
      NHTSA ID:
      #10173877

      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. Read More »

    • TSB #AJA05150

      Date Announced:
      OCT 05, 2019
      NHTSA ID:
      #10165773

      Job Aid - The following procedures in the service information require the Fuel Cell Service Equipment Kit (T/N VSBHONFCVKT1) and the Portable Vent Stack (T/N FEFPVS). Read More »

    • TSB #AJA11262

      Date Announced:
      OCT 05, 2019
      NHTSA ID:
      #10165774

      Job Aid - American Honda has created an instructional video on how to replace the fuel cell stack. When working on or around the fuel cell system, pay attention to the service precautions for the fuel cell system. Read More »

    • TSB #A19-006

      Date Announced:
      JUN 04, 2019
      NHTSA ID:
      #10161235

      Service Bulletin - Water improperly discharged inside the fuel cell stack mixes with hydrogen and oxygen, generating hydrogen peroxide. Read More »

    • TSB #A19-054

      Date Announced:
      JUN 04, 2019
      NHTSA ID:
      #10161237

      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. Read More »

    • TSB #A19-006

      Date Announced:
      JAN 11, 2019
      NHTSA ID:
      #10152745

      "Service bulletin - The telematics system is reporting deterioration of the fuel cell stack. This deterioration can reduce fuel cell output. Read More »

    FUEL SYSTEM, OTHER

    • TSB #A17070B

      Date Announced:
      JUL 21, 2017
      NHTSA ID:
      #10115158

      Service news article - The Clarity Fuel Cell vehicle has two very different cooling systems. One system cools the fuel cell system; the other one cools the inverter system. Read More »

    FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY

    • TSB #ONL6CK03052019

      Date Announced:
      MAR 05, 2019
      NHTSA ID:
      #10154481

      Owner Notification Letter - On 2017-18 Clarity Fuel Cell vehicles, the software that monitors the temperature in the fuel cell tank may not be up to date. Read More »

    • TSB #A19-006

      Date Announced:
      FEB 16, 2019
      NHTSA ID:
      #10153445

      Service Bulletin - The telematics system is reporting deterioration of the fuel cell stack. This deterioration can reduce fuel cell output. Read More »

    ELECTRICAL SYSTEM

    • TSB #A19-006

      Date Announced:
      APR 06, 2020
      NHTSA ID:
      #10173876

      Service Bulletin - Water improperly discharged inside the fuel cell (FC) stack mixes with hydrogen and oxygen, generating hydrogen peroxide. Read More »

    • TSB #A19-054_version3

      Date Announced:
      APR 06, 2020
      NHTSA ID:
      #10173877

      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. Read More »

    • TSB #AJA05150

      Date Announced:
      OCT 05, 2019
      NHTSA ID:
      #10165773

      Job Aid - The following procedures in the service information require the Fuel Cell Service Equipment Kit (T/N VSBHONFCVKT1) and the Portable Vent Stack (T/N FEFPVS). Read More »

    • TSB #AJA11262

      Date Announced:
      OCT 05, 2019
      NHTSA ID:
      #10165774

      Job Aid - American Honda has created an instructional video on how to replace the fuel cell stack. When working on or around the fuel cell system, pay attention to the service precautions for the fuel cell system. Read More »

    • TSB #A19-054_version2

      Date Announced:
      JUN 14, 2019
      NHTSA ID:
      #10161308

      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. Read More »

    • TSB #A19-006

      Date Announced:
      JUN 04, 2019
      NHTSA ID:
      #10161235

      Service Bulletin - Water improperly discharged inside the fuel cell stack mixes with hydrogen and oxygen, generating hydrogen peroxide. Read More »

    • TSB #A19-054

      Date Announced:
      JUN 04, 2019
      NHTSA ID:
      #10161237

      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. Read More »

    • TSB #ABOM01142019901

      Date Announced:
      JAN 14, 2019
      NHTSA ID:
      #10152753

      "Dealer message - Today American Honda is notifying dealers of two product updates affecting certain 2017-18 Clarity Fuel Cell vehicles. The first is a software update to the hydrogen tank temperature sensors. Read More »

    • TSB #A19-001

      Date Announced:
      JAN 11, 2019
      NHTSA ID:
      #10152744

      "Service bulletin - The vehicle may incorrectly set DTC P1F76 (main hydrogen tank temperature sensor malfunction) or P1F77 (sub hydrogen tank temperature sensor malfunction). The fuel cell communication control (IR) software is not current. Read More »

    • TSB #A19-006

      Date Announced:
      JAN 11, 2019
      NHTSA ID:
      #10152745

      "Service bulletin - The telematics system is reporting deterioration of the fuel cell stack. This deterioration can reduce fuel cell output. Read More »

    • TSB #A18-013

      Date Announced:
      APR 13, 2018
      NHTSA ID:
      #10134379

      Service bulletin - The audio system volume will not change when using the remote switch on the steering wheel. There is an internal software issue with the audio-navigation unit. Read More »

    • TSB #ATS170904

      Date Announced:
      SEP 29, 2017
      NHTSA ID:
      #10118541

      Tech line summary article - In a Code A maintenance service, you must replace the FC ion exchanger filter element. Right now, that filter element is in short supply, but we expect to have it back in stock soon. Read More »

    • TSB #ATS170903

      Date Announced:
      SEP 26, 2017
      NHTSA ID:
      #10118540

      Tech line summary article - A temperature sensor failure in the main hydrogen tank or sub hydrogen tank may cause DTC P1F76 (main hydrogen tank temperature sensor malfunction) or P1F77 (sub hydrogen tank temperature sensor malfunction) to ... Read More »

    ELECTRICAL SYSTEM: SOFTWARE

    • TSB #ONL6CK03052019

      Date Announced:
      MAR 05, 2019
      NHTSA ID:
      #10154481

      Owner Notification Letter - On 2017-18 Clarity Fuel Cell vehicles, the software that monitors the temperature in the fuel cell tank may not be up to date. Read More »

    EQUIPMENT:ELECTRICAL

    • TSB #ABOM01142019901

      Date Announced:
      JAN 14, 2019
      NHTSA ID:
      #10152753

      "Dealer message - Today American Honda is notifying dealers of two product updates affecting certain 2017-18 Clarity Fuel Cell vehicles. The first is a software update to the hydrogen tank temperature sensors. Read More »