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Service bulletin No. 25-21

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 id10209786
Published by NHTSA2022-04-05
Manufacturer's numberNo. 25-21
Manufacturer's date2022-03-07
NHTSA componentELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)

NHTSA's summary

Installation and conversion instructions for the Cayenne. PCM3.1 - Navigation Update

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

Electrical system, Equipment and accessories

Vehicles listed
PORSCHE CAYENNE2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018

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

Recalls for the same vehicles and component
20186612018-11-28. Accessories
18V8440002018-11-28. EQUIPMENT
13V5060002013-10-17. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
No. 12-262026-10-02. Service bulletin. Technical Information for Damage to Nano Plug Contacts Due to Utilization of Incorrect Measuring Equipment
GR13D7902026-07-08. Other. Parts Withdrawal - Various Parts
No. TLLI26022026-06-05. Service bulletin. Tech live look information bulletin for How to use Frontline.io on the HoloLens 2
No. TLLI26012026-06-05. Service bulletin. Tech live look information bulletin for how to use fronline.io on mobile devices and tablets.
No. D7852026-06-05. Service bulletin. Parts information for parts withdrawal involving 9J1827447B, PAA971221B, and 95B201060AA. The lock, the fuel tank attachments, and the module connector. The vehicles affected are ones that use the part number(s) mentioned.
No. 26042026-06-05. Service bulletin. Special tools and equipment information for VAS 6296/10 Auto-Ship and Q1 2026 Software Spec Update Available
No. D7832026-06-04. Service bulletin. Parts information for parts withdrawal involving servomotor and rear light. Part numbers affected are 976411881E, 976511881E, PAD411881B, PAD511881A, PAD411881C, 973945093BC. The vehicles involved are ones that use the part numbers mentioned.
No. 44-26-22026-06-04. Service bulletin. Symptom based workshop manual for Information Message “Key (Remote Control (Hand-Held Transmitter)) Not Found / Faulty”, Fault Memory Entry Regarding Key “B19B6F0” in Instrument Cluster Control Unit
No. 46-262026-06-04. Service bulletin. Technical information for a software update of various control units: Software Network VR28.13 SQ4
No. 22-26-12026-06-03. Service bulletin. Technical information for a Replacement Requirement for Wire Harness for Rear-View Mirror/Front Door or Front Main Wire Harness: Rework Signal Line for Mirror Camera