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Service bulletin TSB-9709

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 id10030664
Published by NHTSA2009-11-09
Manufacturer's numberTSB-9709
Manufacturer's date2009-04-23
NHTSA componentELECTRICAL SYSTEM:WIRING

NHTSA's summary

PORSCHE: VEHICLE ALMOST ALWAYS COMES IN AS A BREAKDOWN WITH ONE OF SEVERAL COMPLAINTS: KEY NOT RECOGNIZED MESSAGE IN DASH DISPLAY; WILL NOT CRANK OVER; STUCK IN PARK. *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Electrical system, Wiring and fuses

Vehicles listed
PORSCHE CAYENNE2009
PORSCHE CAYENNE GTS2009 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE CAYENNE S2009 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE CAYENNE TURBO2009 (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-P5G7U-072018-08-06. Service bulletin. Oil in the wiring harness. If oil is found in the engine wiring harness during a repair, the wiring harness and all the affected components (including the oil pump control valve) must be replaced.
122-Q5C4S-062017-07-28. Service bulletin. Issue: Oil in the wiring harness. Information: If oil is found in the engine wiring harness during a repair, the wiring harness and all the affected components (including the oil pump control valve) must be replaced.
ATI-14032014-11-04. Service bulletin. PORSCHE: SOME VEHICLES ARE EXPERIENCING, IN DRIVER'S FOOTWELL, A MAIN WIRING HARNESS CORROSION, WHICH IS CAUSING A NO START SITUATION. MODEL 2003-2010 CAYENNE (S, GTS, TURBO). *PE