Porsche Cayenne 2003–2009 — technical service bulletin
Bulletin No. 1-04 · NHTSA communication 10177957 · issued Jul 24, 2020
Technical service bulletin
communication type
Engine and Engine Cooling
component
2003–2009
model years
7
vehicle entries
Official summary
Revised instructions for adding rubber strips to reduce coolant pump noises in the passenger compartment.
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.