Buick Century 1997 — technical service bulletin
Bulletin 970801631113 · NHTSA communication 54420 · issued Aug 1, 1997
Technical service bulletin
communication type
Visibility
component
1997
model years
3
vehicle entries
Official summary
Insufficient heater performance on passenger side floor area. *yc
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.