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Service bulletin A16-056

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 id10084298
Published by NHTSA2016-11-16
Manufacturer's numberA16-056
Manufacturer's date2016-06-21
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

SERVICE BULLETIN - IMMOBILIZER FUNCTION DOES NOT WORK USING THE I-HDS.

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, Transmission and driveline, Automatic transmission, Software, Transmission control module

Vehicles listed
HONDA RIDGELINE2016

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