# Service bulletin A21\-008

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.

- Type: Service bulletin
- NHTSA id: 10187007
- Published by NHTSA: 2021\-02\-18
- Manufacturer's number: A21\-008
- Manufacturer's date: 2021\-02\-11
- NHTSA component: ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ENGINE AND ENGINE COOLING

## NHTSA's summary

Service Bulletin \- The Hybrid System Failure message comes on the MID, and DTC P1D8D \(Generator Motor Inverter Short\) is stored.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10187007-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10187007-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Engine, Transmission and driveline, Automatic transmission, Transmission control module

## Trouble codes named

P1D8D

## Vehicles listed

- 2018 to 2020 HONDA CLARITY PLUG\-IN HYBRID

## Other bulletins for the same vehicles and component

- [A18\-079](/bulletins/10143164.md), 2018-07-30, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Service bulletin \- The MIL comes on with DTC P100C \(electric VTC motor speed signal circuit malfunction\) and/or P0010 \(variable valve timing control \[VTC\] malfunction\).

JSON: [/v1/bulletins/10187007](/v1/bulletins/10187007)

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