Buick Century 1997–1999 — technical service bulletin
Bulletin 020139001 · NHTSA communication 629522 · issued Feb 1, 2002
Technical service bulletin
communication type
Visibility
component
1997–1999
model years
8
vehicle entries
Official summary
Subject regarding hvac temperature difference side to side and/or diagnostic trouble codes b0361, b0441 set. *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.