Porsche Cayenne 2018–2019 — technical service bulletin
Bulletin No. 173-20 · NHTSA communication 10183511 · issued Nov 25, 2020
Technical service bulletin
communication type
Equipment
component
2018–2019
model years
4
vehicle entries
Official summary
Instructions for fixing the navigation in the PCM in the event that it is loading slowly.
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.