Porsche Cayenne 2011–2018 — technical service bulletin
Bulletin No. 25-21 · NHTSA communication 10209786 · issued Mar 7, 2022
Technical service bulletin
communication type
Equipment
component
2011–2018
model years
8
vehicle entries
Official summary
Installation and conversion instructions for the Cayenne. PCM3.1 - Navigation Update
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.