Porsche Cayenne 2011–2018 — technical service bulletin
Bulletin 122-D2B8P-10 · NHTSA communication 10165923 · issued Sep 3, 2019
Technical service bulletin
communication type
Engine and Engine Cooling
component
2011–2018
model years
8
vehicle entries
Official summary
Instructions for what course of action to take if the customer should complain about oil leaks from the transfer case
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.