Buick Century 1997–1998 — technical service bulletin
Bulletin 990858001 · NHTSA communication 606015 · issued May 1, 1999
Technical service bulletin
communication type
Structure
component
1997–1998
model years
5
vehicle entries
Official summary
Conditions with general wind noise / windrush. *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.