Buick Lesabre 2002–2005 — technical service bulletin
Bulletin 02118 · NHTSA communication 10007449 · issued Jan 1, 2004
Technical service bulletin
communication type
Visibility
component
2002–2005
model years
8
vehicle entries
Official summary
Droning sound from hvac blower system. Service vme. *mj
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.