Porsche Cayenne 2004 — technical service bulletin
Bulletin 520 · NHTSA communication 10009807 · issued Sep 24, 2004
Technical service bulletin
communication type
Visibility
component
2004
model years
3
vehicle entries
Official summary
Deteriorating wiping quality and wiping noises from windshield wiper blades. Windshield wiper blade wiping quality. Quality improvement workshop campaign. *tt
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.