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Service bulletin A18-097

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 id10154940
Published by NHTSA2019-03-19
Manufacturer's numberA18-097
Manufacturer's date2019-03-12
NHTSA componentELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY

NHTSA's summary

Service Bulletin - The Clarity Plug-In Hybrid and Clarity Electric may not start charging when plugged in or may stop charging before the high-voltage lithium-ion battery is full.

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

Electrical system, 12-volt battery

Vehicles listed
HONDA CLARITY ELECTRIC2017, 2018 (the catalog's model; the bulletin names a series or trim of it)
HONDA CLARITY PLUG-IN HYBRID2018 (the catalog's model; the bulletin names a series or trim of it)

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
A18-0972018-10-15. Service bulletin. Service bulletin - The Clarity Plug-In Hybrid and Clarity Electric may not start charging when plugged in or may stop charging before the high-voltage lithium-ion battery is full. The battery charger software does not start charging or may stop before charging is complete in areas with poor or fluctuating power quality.
ATS1710022017-10-21. Service bulletin. Tech line summary article - Before you take a newly arrived vehicle for its first drive, make sure you charge the high-voltage lithium-ion battery. The vehicle leaves the factory with its battery state of charge level at a minimum. If you take the vehicle out on the street without first charging the battery, you could wind up running out of charge.
A17100D2017-10-21. Service bulletin. Servicenews article - The high-voltage lithium-ion battery in the Clarity Electric has an 8-year or 100,000-mile warranty. But unlike all of our earlier vehicles with high-voltage batteries, this one doesn?t set a DTC when the battery pack capacity value has reached the level for battery replacement under warranty.