Buick Lesabre 1999–2000 — technical service bulletin
Bulletin 990603005 · NHTSA communication 606152 · issued Jun 1, 1999
Technical service bulletin
communication type
Engine and Engine Cooling
component
1999–2000
model years
2
vehicle entries
Official summary
Subject regarding generator noise (whine / hum / moan / vibration) in passenger compartment at idle, slow speeds, decelerating or parking maneuvers. *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.