Buick Lacrosse 2004–2005 — technical service bulletin
Bulletin 3453 · NHTSA communication 10017150 · issued Oct 26, 2005
Technical service bulletin
communication type
Engine and Engine Cooling
component
2004–2005
model years
7
vehicle entries
Official summary
Engine whine noise from 0 30 mph at 1000 2500 rpm. *sc
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.