# Service bulletin No. 173\-20

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: 10183511
- Published by NHTSA: 2020\-12\-02
- Manufacturer's number: No. 173\-20
- Manufacturer's date: 2020\-11\-25
- NHTSA component: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); EQUIPMENT

## NHTSA's summary

Instructions for fixing the navigation in the PCM in the event that it is loading slowly.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10183511-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10183511-9999.pdf)

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

## Components

Equipment and accessories, Transmission and driveline, Automatic transmission, Transmission control module

## Vehicles listed

- 2018 to 2019 PORSCHE CAYENNE
- 2018 to 2019 PORSCHE MACAN

## Other bulletins for the same vehicles and component

- [No. 93\-21](/bulletins/10213133.md), 2022-06-03, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM. Technical information on the PCM \- does not work, reset central computer
- [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. 2037](/bulletins/10182280.md), 2020-11-06, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT:FILTER/SCREEN; POWER TRAIN. Special Tools information for Transmission oil Filler tool on the new Cayenne.
- [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.
- [No. 118\-20](/bulletins/10179095.md), 2020-09-02, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION \(PRNDL\). Instructions for how to assist if the selector lever is in Park position but not detected, and the key cannot be removed.
- [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/10183511](/v1/bulletins/10183511)

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