Porsche Cayenne 2003–2006 — technical service bulletin
Bulletin No. 199-22-1 · NHTSA communication 10227355 · issued Nov 11, 2022
Technical service bulletin
communication type
Electrical System
component
2003–2006
model years
4
vehicle entries
Official summary
Technical information for ANB4 - retrofitting locking caps on the front left and right headlights.
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.