2017-2018 Honda Clarity Fuel Cell – Fuel Cell Voltage Misdetection Safety Recall

NHTSA Campaign Number: 18V921
Manufacturer Honda (American Honda Motor Co.)
Components ELECTRICAL SYSTEM, HYBRID PROPULSION SYSTEM
Potential Number of Units Affected 1,082

 

Vehicle May Lose Power

A loss of power can increase the risk of a crash.

 

Summary

Honda (American Honda Motor Co.) is recalling certain 2017-2018 Clarity Fuel Cell vehicles previously repaired under recall 18V-068. The previous software remedy may have been incomplete. As a result, the fuel cell control unit (FC-ECU) may misinterpret a small cell voltage drop, causing the vehicle to have a partial or complete loss of power.

 

Remedy

Honda has notified owners, and dealers will update the FC-ECU software, free of charge. The recall began February 14, 2019. Owners may contact Honda customer service at 1-888-234-2138. Honda’s number for this recall is A3O.

 

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

 

Check if your Honda has a Recall


Owner Notification Letter

February 2019

https://static.nhtsa.gov/odi/rcl/2018/RCONL-18V921-3959.pdf

Download (PDF, 216KB)


Manufacturer Notices

December 21, 2018

https://static.nhtsa.gov/odi/rcl/2018/RCMN-18V921-7147.pdf

Download (PDF, 185KB)


Statement by American Honda Regarding Fuel Cell Voltage Misdetection Recall: 2017-2018 Honda Clarity Fuel Cell

https://static.nhtsa.gov/odi/rcl/2018/RMISC-18V921-4112.pdf

Download (PDF, 68KB)


DEFECT INFORMATION REPORT

https://static.nhtsa.gov/odi/rcl/2018/RMISC-18V921-9980.pdf

Download (PDF, 61KB)


Recall Acknowledgement

February 15, 2019

https://static.nhtsa.gov/odi/rcl/2018/RCAK-18V921-7830.pdf

Download (PDF, 239KB)


Recalls Documents

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=18V921&docType=RCL


 

i-HDS Diagnostic Software and J2534 Reprogramming Software

 

Honda J2534 Pass-Thru User Guide

Honda J2534 Pass-Thru Software Download

Latest ECU Software

 

Vehicle Communication Interfaces (VCI)

The i-HDS software supports the use of a generic pass-thru VCI that is compliant with SAE J2534-1 and J2534-2. However, Honda recommends the Denso DST-i or the Bosch MVCI for use on Honda and Acura vehicles, as Honda has worked closely with these manufacturers to ensure their hardware and our software interact safely and within the J2534-1 and -2 specifications, for both diagnostics and reprogramming. If you choose to use a generic VCI, please carefully consider the customer and technical support options you will receive from your chosen device supplier. Honda does not provide technical or customer support for generic VCI devices.

The VCI Application Table below lists devices that either are approved and supported by Honda or are known to have completed and passed an independent, exhaustive validation program with our i-HDS software suite.

Manufacturer Version Information Notes VCI Name
Firmware J2534 API
DENSO 2.00.0010* 04.04 This is the current generation VCI used by Honda and Acura dealers. Honda routinely validates the functionality and provides customer support for this device. DST-i
Bosch 3.01.54* 04.04 This is the previous generation VCI used by Honda and Acura dealers. Honda routinely validates the functionality and provides customer support for this device. MVCI 
Drew Technologies 1.7.7** 04.04 This company has completed an independent i-HDS validation and claims it to function with the i-HDS software. Honda does not provide ongoing validation, nor customer support for this device. MongoosePro Honda 
Dearborn Group 3.303** 04.04 This company has completed an independent i-HDS validation and claims it to function with the i-HDS software. Honda does not provide ongoing validation, nor customer support for this device. d-briDGe Pro 

* These versions may have been superseded. Honda provides the latest supported versions to current i-HDS subscribers.
** Version used in validation program. See Terms and Conditions and Important Notice Regarding Reprogramming below for more details.

CarDAQ-Plus 2 Diagnostic Code Reader and J2534 Programming Tool
Drew Technologies (DRWCDPLUSKIT) CarDAQ-Plus J2534 Flash Reprogramming Kit
CarDAQ-M Modular PassThru J2534 Vehicle Reflash Hardware
VSI J2534 ECU Reprogrammer & Diagnostic Adapter
MAXIFLASH PRO (ALT-MF2534)

 

DST-i Information:

 

MVCI Information:

 

techinfo.honda.com

 

 

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Bestseller No. 6
Autel Maxisys MS908CV Heavy Duty Diagnostic Scan Tool With J-2534 ECU Programming,Bluetooth/Wifi Enabled & Wireless Connection
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Autel Maxisys Pro MS908p Wifi Automotive Diagnostic Tool with J2534 ECU Programming Free Updated Online
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  • The Autel Maxisys MS908CV is especially made for working on Heavy Duty vehicles. It contains a whole set of heavy duty vehicle connectors and provides access to all the commonly performed service functions: Oil Reset, EPB, Brake Bleeding, DPF & SCR, Immo & keys, Injector Throttle and other regular maintenance functions
  • The complete diagnostic tool kit includes a compact sized MaxiFlash Elite which performs J2534 and J2534-2 pass-thru programming and provides BT VCI communication between the vehicle and the MaxiSys CV tablet.
  • The diagnostic scan tool provides the special functions that complete repairs including Injector Quantity Adjustment, DPF Regeneration, Adaptations, Calibrations, Maintenance Resets.
  • The automotive scanner read and clear codes, view and graph live data, perform tool-guided maintenance services, complete an array of special functions and diagnose manufacturer-specific systems including Allison transmissions, Bendix ABS Brake systems, Detroit Diesel Engines and Eaton and Wabash ABS trailer brakes.
  • Extensive vehicle coverage for more than 80 US, Asian and European commercial vehicles and industrial machine brands.
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  • ECU CODING/PROGRAMMING: This top-level OBD2 scanner comes with a SAE J2534-1 & -2 compliant PassThru reprogramming interface device which allows you to use the updated OEM software to replace the existing software/firmware in ECUs, programming new ECUs for Benz/BMW and fixing software-controlled drivability issues and emission issues.
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  • ECU CODING/PROGRAMMING: This top-level OBD2 scanner comes with a SAE J2534-1 & -2 compliant PassThru reprogramming interface device which allows you to use the updated OEM software to replace the existing software/firmware in ECUs, programming new ECUs for Benz/BMW and fixing software-controlled drivability issues and emission issues.
  • TOP-LEVEL CONFIGURATION: This Android4.4 based high-end car scanner is designed with the advanced hardware configurations including super-fast hexa-core Processor, 2GM RAM, 64GB On-board Memory, 8.0 Megapixel rear cam, ultra-clear 10.1 inches LED screen etc. for users to detect the problems of the given vehicle efficiently and accurately.
  • ABUNDANT VEHICLE MODELS: This diagnostic scan tool is built for testing more than 80 US, Asian and European vehicle makes and you can use it to test more vehicles when you complete the update at our official website once in a while. It is basically a bidirectional scanner that allows you to send and receive data to and from a car's control modules.
  • DATA MANAGEMENT OPERAION: In order to bring convenience for users to manage all the data and parameters stored in this diagnostic tool, Autel MK908P supports the following user-friendly managing functions: Shop Manager Operation, MaxiFix Operation, Data Manager Operation, etc. to quickly and directly select the required referring information while diagnosing.

Last update on 2019-04-26 / Affiliate links / Images from Amazon Product Advertising API

Last update on 2019-04-26 / Affiliate links / Images from Amazon Product Advertising API

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