Porsche Cayenne 2020–2021 — technical service bulletin
Bulletin WNH1 · NHTSA communication 10227480 · issued Nov 11, 2022
Technical service bulletin
communication type
Engine and Engine Cooling
component
2020–2021
model years
4
vehicle entries
Official summary
Porsche intranet posting with information on reprogramming the DME control unit
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.