Porsche Cayenne 2013–2016 — technical service bulletin
Bulletin 122-T8Y6E-06 · NHTSA communication 10161400 · issued May 16, 2019
Technical service bulletin
communication type
Engine and Engine Cooling
component
2013–2016
model years
4
vehicle entries
Official summary
Instructions for setting the ready status for catalytic converters on Cayenne Diesel vehicles, since there is some difficulty in setting the status when the vehicle is finished having emissions related repairs and is ready to leave the Service Department.
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.