Buick Century 2001–2002 — technical service bulletin
Bulletin 050902 · NHTSA communication 636636 · issued May 9, 2002
Technical service bulletin
communication type
Equipment
component
2001–2002
model years
4
vehicle entries
Official summary
Subject regarding poor radio reception with or without rear defogger operation, normally with the radio tuned to am and under 800 kilohertz. *tt
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.