Buick Lesabre 1999–2001 — technical service bulletin
Bulletin 990603005A · NHTSA communication 618099 · issued Dec 1, 2000
Technical service bulletin
communication type
Engine and Engine Cooling
component
1999–2001
model years
8
vehicle entries
Official summary
Some vehicles may exhibit a generator noise (whine / hum / moan / vibration) in passenger compartment at idle, slow speeds, decelerating or parking maneuvers. *jb
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.