# Service bulletin A18\-079

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: 10143164
- Published by NHTSA: 2018\-07\-30
- Manufacturer's number: A18\-079
- Manufacturer's date: 2018\-07\-10
- NHTSA component: ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\)

## NHTSA's summary

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\).

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10143164-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10143164-0001.pdf)

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

## Components

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

## Trouble codes named

P0010, P100C

## Vehicles listed

- 2018 HONDA CLARITY PLUG\-IN HYBRID

## Recalls for the same vehicles and component

- [18V921000](/recalls/nhtsa/18V921000.md), 2018-12-20: ELECTRICAL SYSTEM:SOFTWARE; HYBRID PROPULSION SYSTEM

## Other bulletins for the same vehicles and component

- [A21\-008](/bulletins/10187007.md), 2021-02-18, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ENGINE AND ENGINE COOLING. Service Bulletin \- The Hybrid System Failure message comes on the MID, and DTC P1D8D \(Generator Motor Inverter Short\) is stored.
- [ONL6CK03052019](/bulletins/10154481.md), 2019-03-15, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY. Owner Notification Letter \- On 2017\-18 Clarity Fuel Cell vehicles, the software that monitors the temperature in the fuel cell tank may not be up to date. This may cause the vehicle to incorrectly display a hydrogen system warning on the instrument panel and store a system malfunction.
- [A18\-089](/bulletins/10145429.md), 2018-10-15, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Service bulletin \- There is a software problem in the climate control unit when running the heater, which may turn the MIL on. There are up to three updates that must be performed on applicable vehicles. Check the iN VIN status inquiry for applicability.
- [A18\-079](/bulletins/10143337.md), 2018-08-06, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. 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\).
- [A18\-069](/bulletins/10142444.md), 2018-07-02, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Service bulletin \- The HV range display reading is unusually high. There is a software error in the miles per gallon calculation, which affects the remaining HV range display.

JSON: [/v1/bulletins/10143164](/v1/bulletins/10143164)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20A18-079&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10143164&vehicle=Service%20bulletin%20A18-079)