Buick Park Avenue 1999–2001 — technical service bulletin
Bulletin 021001 · NHTSA communication 627868 · issued Oct 2, 2001
Technical service bulletin
communication type
Visibility
component
1999–2001
model years
3
vehicle entries
Official summary
Information regarding the oo wing heater hose adaptor to eliminate alternator whine on. *yh
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.