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Service bulletin A22-040

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 id10222076
Published by NHTSA2022-09-27
Manufacturer's numberA22-040
Manufacturer's date2022-09-21
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

Service Bulletin - The MIL is on with P0420 (Catalyst System Efficiency Below Threshold). Sensors on the vehicle may misinterpret the catalyst as deteriorated or it may have deteriorated.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Trouble codes named

P0420

Vehicles listed
HONDA CR-Z2014, 2015, 2016

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
Label Misprint2022-05-09. Service bulletin. Today, February 26, 2016, American Honda Motor Co., Inc. is announcing a Product Update for certain Accord, Civic, CR-Z, Fit, and Insight model years 2014-2016 vehicles for sale in the state of Hawaii to amend Monroney labels that were printed without bumper impact information. Basic Problem American Honda had a computer programming issue; an obsolete program name causing printing of no bumper impact information on the Monroney label for the state of Hawaii.