Buick Lesabre 2000 — technical service bulletin
Bulletin 990864009 · NHTSA communication 606094 · issued Jun 1, 1999
Technical service bulletin
communication type
Structure
component
2000
model years
1
vehicle entries
Official summary
On some vehicles built prior to vin breakpoints y4100695 and yu100697, the outer lip of front / rear side door window weatherstrip tucks under when window is raised. *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.