# Service bulletin 122\-J4H9M\-12

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: 10125210
- Published by NHTSA: 2017\-12\-14
- Manufacturer's number: 122\-J4H9M\-12
- Manufacturer's date: 2017\-11\-08
- NHTSA component: ELECTRICAL SYSTEM:SOFTWARE; ENGINE

## NHTSA's summary

Situation: Cayenne Diesel vehicles were equipped with undisclosed Auxiliary Emission Control Devices which are not permitted by emissions regulations. Action Required: Install updated engine control module \(DME\) software, transmission control module \(Tiptronic\) software and hardware to bring affected vehicles into regulatory compliance.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2017/MC-10125210-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2017/MC-10125210-0001.pdf)

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

## Components

Electrical system, Engine, Software

## Vehicles listed

- 2013 to 2014 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\-T4M9P\-09](/bulletins/10165171.md), 2019-09-23, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Instructions for retrofitting Sport Plus Mode on vehciles without sport chrono package already installed.
- [122\-F7A7X\-10](/bulletins/10122094.md), 2017-11-08, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. The rear lid closes at a higher speed particularly at cold temperatures. The signal from the microswitch in the lid lock is too short and cannot be read out clearly by the control unit software.
- [122\-W5S3Z\-06](/bulletins/10109349.md), 2017-08-01, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); EQUIPMENT. Concerns: Electronic logbook in Porsche Communication Management \(PCM\) 3.1 Information: This is to inform you of a voluntary Workshop Campaign on the above\-mentioned vehicles. Implausible entries can appear in the logbook \(e.g. negativemileage, double entries\) on the affected vehicles due to incorrect PCM software. Earlier entries in the logbook can even be overwritten in some cases.
- [122\-J8L6N\-09](/bulletins/10081247.md), 2016-10-03, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. ENABLING ONLINE SERVICES

JSON: [/v1/bulletins/10125210](/v1/bulletins/10125210)

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