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Service bulletin A16056

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10085229
Published by NHTSA2016-11-30
Manufacturer's numberA16056
Manufacturer's date2016-08-16
NHTSA componentELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

"SERVICE BULLETIN - THERE IS AN INCORRECT SOFTWARE SETTING IN THE PGM-FI ECU THAT PREVENTS THE I-HDS FROM DOING ANY OF THE FOLLOWING: • ADD NEW KEY(S) • ALL KEYS LOST • PCM REPLACEMENT • MICU REPLACEMENT A PCM SOFTWARE UPDATE IS AVAILABLE TO REMEDY THIS CONDITION."

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Electrical system, Software

Vehicles listed
HONDA RIDGELINE2017

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
A21-0102021-02-18. Service bulletin. "Service Bulletin - The PCM software may misinterpret sensor inputs as a deteriorated catalytic converter. Additionally, debris from the high pressure pump or the fuel injector machining process can cause internal wear or clogging inside one or more injectors. One or more of the following DTCs may be stored: - P0420 (rear bank catalyst system efficiency below threshold [bank 1]) - P0430 (front bank catalyst system efficiency below threshold [bank 2]) - P0300-P0306 (misfire) - P219A (air-fuel ratio variation of cylinder [bank 1, rear bank]) - P219B (air-fuel ratio variation of cylinder [bank 2, front bank]) American Honda is extending the warranty on these repairs to 10 years from the original date of purchase or 150,000 miles, whichever comes first."
A20-1002021-02-18. Service bulletin. "Service Bulletin - The PCM software may misinterpret sensor inputs as a deteriorated catalytic converter. Additionally, debris from the high pressure pump or the fuel injector machining process can cause internal wear or clogging inside one or more injectors. One or more of the following DTCs may be stored: - P0420 (rear bank catalyst system efficiency below threshold [bank 1]) - P0430 (front bank catalyst system efficiency below threshold [bank 2]) - P0300-P0306 (misfire) - P219A (air-fuel ratio variation of cylinder [bank 1, rear bank]) - P219B (air-fuel ratio variation of cylinder [bank 2, front bank]) American Honda is extending the warranty on these repairs to 10 years from the original date of purchase or 150,000 miles, whichever comes first."
A16-0562018-07-16. Service bulletin. Service bulletin - There is an incorrect software setting in the PGM-FI ECU that prevents the i-HDS from doing any of the following: ? Add New Key(s) ? All Keys Lost ? PCM Replacement ? MICU Replacement
A17-0362018-03-05. Service bulletin. Service bulletin - The MIL comes on with DTC P0430 (front bank catalyst system efficiency below threshold [Bank 2]). The PCM software may misinterpret sensor inputs as a deteriorated catalytic converter.
A17-0362017-08-25. Service bulletin. Service bulletin - The MIL comes on with DTC P0430 (front bank catalyst system efficiency below threshold [Bank 2]). The PCM software may misinterpret sensor inputs as a deteriorated catalytic converter.
ATS1702072017-06-28. Service bulletin. THE APP INSTALLER ICON, LISTED UNDER APP LIST ON THE DISPLAY AUDIO SCREEN, HAS DRAWN A FEW QUESTIONS FROM CURIOUS CUSTOMERS. THIS ICON IS MEANT FOR FUTURE APPS THAT MAY BE DEVELOPED. AT THIS TIME, HOWEVER, THERE ARE NONE AVAILABLE OR ANY PLANS TO DEVELOP THEM
ATS1702052017-06-28. Service bulletin. TECHLINE SUMMARY ARTICLE - ALTHOUGH SIMILAR, THE HONDALINK AND HONDALINK EV APPS AVAILABLE FOR DOWNLOAD ON THE APPLE APPS STORE AND GOOGLE PLAY ARE NOT THE SAME. FURTHERMORE, EACH APP APPLIES TO SPECIFIC MODELS.
ATS1610012017-06-19. Service bulletin. TECHLINE SUMMARY ARTICLE - SOME CUSTOMERS HAVE REPORTED THAT WHEN PLUGGING THEIR IPHONES WITH IOS 10 INTO THE USB PORT AND SELECTING PANDORA FROM APPLE CARPLAY, PANDORA WON’T PLAY. FROM OUR INVESTIGATION, WE KNOW THIS IS A PANDORA ISSUE AND NOT SOMETHING RELATED TO THE AUDIO SYSTEM OR APPLE SOFTWARE.