Service bulletin WMD1
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 | 10194854 |
| Published by NHTSA | 2021-06-03 |
| Manufacturer's number | WMD1 |
| Manufacturer's date | 2021-05-01 |
| NHTSA component | POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM) |
NHTSA's summary
Porsche intranet posting with preliminary information for Porsche workshop campaign WMD1 Workshop Campaign -PCM Software Update.
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
Transmission and driveline, Automatic transmission, Transmission control module
| PORSCHE 718 BOXSTER | 2017, 2018 |
|---|---|
| PORSCHE 718 CAYMAN | 2017, 2018 |
| PORSCHE 911 | 2017, 2018 |
| PORSCHE CAYENNE | 2017, 2018 |
| PORSCHE MACAN | 2017, 2018 |
| PORSCHE PANAMERA | 2017, 2018 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| No. 173-20 | 2020-12-02. Service bulletin. Instructions for fixing the navigation in the PCM in the event that it is loading slowly. |
|---|---|
| No. 2020 | 2020-10-01. Service bulletin. Information on new special tool for offline updates of the PCM Versions 4 and 5. |
| WKH7 | 2020-09-02. Service bulletin. Porsche intranet communication for Porsche Workshop Campaign WKH7 - Reprogramming DME control unit. |
| No. 85-19 | 2020-09-02. Service bulletin. Service campaign information for Porsche Workshop campaign WJ76 - Performing PCM Software Update. |
| No. 118-20 | 2020-09-02. Service bulletin. Instructions for how to assist if the selector lever is in Park position but not detected, and the key cannot be removed. |
| 122-E6U4B-12 | 2019-02-25. Service bulletin. Subject: Shift lever Information: The shift lever can move in longitudinal direction during load changes in 4th gear. |
| 122-T5A2Z-05 | 2018-05-21. Service bulletin. Condition The remote key battery is discharged before it?s expected. Technical Background A manufacturing defect damages the key and causes the key battery to discharge prematurely. This damage cannot be repaired. |
| 122-R6Y8J-05 | 2018-05-21. Service bulletin. 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 | 2018-03-13. Service bulletin. 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. |
| 122-W2Q5L-02 | 2018-02-12. Service bulletin. 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. |