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Service bulletin 122-G8Z4D-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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10119312
Published by NHTSA2017-10-15
Manufacturer's number122-G8Z4D-10
Manufacturer's date2017-09-13
NHTSA componentEXTERIOR LIGHTING:BRAKE LIGHTS:SWITCH

NHTSA's summary

Information: A Cayenne with optional equipment no. 1D6 will come with a Trailer hitch receiver and wiring up to the receiver hitch that includes a control unit to operate the trailer parking lights, turn signals and brake lights. The Cayenne is also pre-wired for a brake controller. You will need to do the following to hook up the trailer electrics and/or an electric brake controller:

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

Lighting, Brake lights

Vehicles listed
PORSCHE 911 TURBO S2011 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE CAYENNE2013, 2014
PORSCHE CAYENNE S E-HYBRID2015, 2016, 2017 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE CAYENNE S HYBRID2011, 2012 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE PANAMERA2016, 2017
PORSCHE PANAMERA S E-HYBRID2011, 2012, 2013, 2014, 2015 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
122-B3W7F-062017-08-01. Service bulletin. Concerns: Brake light switch Information: Possible replacement of perfectly functioning components when complaint "Brake light stays on" is received/fault code 4340 in PSM control unit.