# Service bulletin 122\-H9J9F\-10

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: 10122100
- Published by NHTSA: 2017\-11\-08
- Manufacturer's number: 122\-H9J9F\-10
- Manufacturer's date: 2016\-09\-27
- NHTSA component: ELECTRICAL SYSTEM:SOFTWARE

## NHTSA's summary

PCNA is aware of this this issue. Please use this workaround until a permanent countermeasure can be applied: Use the instructions in WM 915255 Replacing Central Computer to properly encode the central computer to enable the Connect services activation.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2016/MC-10122100-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2016/MC-10122100-0001.pdf)

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

## Components

Electrical system, Software

## Vehicles listed

- 2017 PORSCHE CAYENNE

## Other bulletins for the same vehicles and component

- [PIWIS2401j](/bulletins/10251154.md), 2024-03-04, Service bulletin: UNKNOWN OR OTHER; ELECTRICAL SYSTEM:SOFTWARE. Information for PIWIS tester update 42.500.020
- [PIWIS2001v](/bulletins/10176881.md), 2020-07-02, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. Information on new PIWIS tester update 39.500.020 and .025.
- [No. 41\-20](/bulletins/10176852.md), 2020-07-01, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:SOFTWARE. Instructions on how to perform a PVTS Software update in the event that a car will not start.
- [122\-E9N4X\-01](/bulletins/10127491.md), 2018-01-29, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Optimized software for Porsche Communication Management \(PCM\) 4.0 has been used in standard production in order to further improve the general performance of the system. These optimizations must be implemented retrospectively even for vehicles manufactured before the date of introduction. Action Required: ? Update PCM software using an SD card ? Re\-code the PCM using PIWIS Tester test software version 34.800.030 \(or higher

JSON: [/v1/bulletins/10122100](/v1/bulletins/10122100)

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