Volvo S80 2004–2005 — technical service bulletin
Bulletin 4609 · NHTSA communication 10016109 · issued Sep 23, 2004
Technical service bulletin
communication type
Power Train
component
2004–2005
model years
2
vehicle entries
Official summary
A whining or whistling noise from the driveline which is most apparent at 28 mph (45 kph). *tt
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.