Porsche Cayenne 2021 — technical service bulletin
Bulletin No. 2308 · NHTSA communication 10237419 · issued May 18, 2023
Technical service bulletin
communication type
Electrical System
component
2021
model years
3
vehicle entries
Official summary
Special tools and equipment for the map update service for the PCM4 and 5
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.