Porsche Cayenne 2017–2021 — technical service bulletin
Bulletin No. 173-22 · NHTSA communication 11029129 · issued Feb 4, 2026
Technical service bulletin
communication type
Engine
component
2017–2021
model years
15
vehicle entries
Official summary
Technical information for Oil Leak Around the Oil-Filter Housing: Observe Work Procedure
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.