# Service bulletin WMA6

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: 10189929
- Published by NHTSA: 2021\-04\-06
- Manufacturer's number: WMA6
- Manufacturer's date: 2021\-03\-03
- NHTSA component: ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\)

## NHTSA's summary

Porsche intranet information for Porsche workshop campaign WMA6 with customer letter \-Updating software of various control units.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10189929-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10189929-9999.pdf)

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

## Components

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

## Vehicles listed

- 2021 PORSCHE TAYCAN

## Recalls for the same vehicles and component

- [22V404000](/recalls/nhtsa/22V404000.md), 2022-06-08: BACK OVER PREVENTION: SENSING SYSTEM: CAMERA; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\)

## Other bulletins for the same vehicles and component

- [No. 2320.1](/bulletins/10251187.md), 2024-03-05, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM. Information on advanced technical information for the PCM on the Taycan \- display stuck on loading spinner

JSON: [/v1/bulletins/10189929](/v1/bulletins/10189929)

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