# Service bulletin 122\-N6B7V\-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: 10125212
- Published by NHTSA: 2017\-12\-14
- Manufacturer's number: 122\-N6B7V\-12
- Manufacturer's date: 2017\-11\-02
- NHTSA component: STEERING

## NHTSA's summary

Cause: Clicking noises can come from around the transfer case when manoeuvring the vehicle \(or driving slowly\) due to activation of the transfer case servo motor. Remedial Action: Before doing any other work, the symptom must be simulated using a test procedure. \(Opening the door windows can be helpful when evaluating noises\). 1 Conditions for the first test procedure: \* Activate the Start/Stop function and \* deactivate all sources of noise in the vehicle \(Entertainment, ventilation, etc.\). \* A multi\-story parking garage can be useful for acoustic reverberation. \* On a straight stretch \* from speeds less than 10mph \(20 km/h\) \* brake the vehicle to a standstill. \* The best way of finding the clicking noise is by driving slowly and then stopping the vehicle.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2017/MC-10125212-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2017/MC-10125212-0001.pdf)

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

## Components

Steering

## Vehicles listed

- 2012 to 2017 PORSCHE CAYENNE
- 2011 PORSCHE CAYENNE \(E2\)
- 2011 to 2012 PORSCHE CAYENNE S
- 2011 to 2012 PORSCHE CAYENNE TURBO

## Other bulletins for the same vehicles and component

- [SPTL2609](/bulletins/11037868.md), 2026-10-02, Service bulletin: WHEELS; STEERING; SUSPENSION. Special Tools and Equipment Information for alignment machines \- Q3 2026 Software Spec Update Available
- [SPTL2608](/bulletins/11037083.md), 2026-09-04, Service bulletin: WHEELS; SUSPENSION; STEERING. Special Tools and Equipment Information for alignment machines \- Q2 2026 Software Spec Update Available
- [No. D733](/bulletins/11022917.md), 2025-09-08, Service bulletin: STEERING. Parts information for parts withdrawal involving \(PAD423051B\) the Steering Gear with Track Rods. The vehicles affected are cars that use the part mentioned.

JSON: [/v1/bulletins/10125212](/v1/bulletins/10125212)

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