# Service bulletin 122\-W2Q5L\-02

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: 10128658
- Published by NHTSA: 2018\-02\-12
- Manufacturer's number: 122\-W2Q5L\-02
- Manufacturer's date: 2018\-01\-25
- NHTSA component: ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\)

## NHTSA's summary

Customer Concern: The customer may desire a PCM software update. Perhaps the customer experiences an unwanted PCM behavior and errantly believes a PCM software update will help solve the perceived issue. Technical Concern: The calendar year 2017 software update for PCM4.1 is not compatible with MY17 Panamera \(971\) \(which does have PCM4.1\). In fact, this software update may make the PCM climate controls permanently inoperable.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10128658-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10128658-0001.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

- 2017 PORSCHE PANAMERA

## Other bulletins for the same vehicles and component

- [WMD1](/bulletins/10194854.md), 2021-06-03, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Porsche intranet posting with preliminary information for Porsche workshop campaign WMD1 Workshop Campaign \-PCM Software Update.
- [No. 2020](/bulletins/10180501.md), 2020-10-01, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Information on new special tool for offline updates of the PCM Versions 4 and 5.
- [WKH7](/bulletins/10179279.md), 2020-09-02, Service bulletin: ENGINE AND ENGINE COOLING; POWER TRAIN:AUTOMATIC TRANSMISSION; ELECTRICAL SYSTEM:SOFTWARE. Porsche intranet communication for Porsche Workshop Campaign WKH7 \- Reprogramming DME control unit.
- [122\-R6Y8J\-05](/bulletins/10138299.md), 2018-05-21, Service bulletin: EQUIPMENT; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Condition The customer experiences an interruption in Apple CarPlay service after selecting the reverse gear. In other words, after the PCM screen displays the reverse camera, the PCM screen will not display Apple CarPlay until the user resets the PCM \(perhaps by cycling the ignition\).
- [122\-B6P3D\-03](/bulletins/10130123.md), 2018-03-13, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. Symptom: Hard or jerky gear changes. Cause: This is caused by the transition phase when changing from the engaged gear to the target gear. Various components of the powertrain affect the shifting quality. Remedial Action: In the event of a customer complaint, use PIWIS Tester III with software 36.400.020 \(or higher\) installed to: ? re\-program and code the Tiptronic control unit via "Automatic programming" and ? reset the adaptation values.

JSON: [/v1/bulletins/10128658](/v1/bulletins/10128658)

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