Buick Lesabre 2004 — technical service bulletin
Bulletin 01505 · NHTSA communication 10005487 · issued Jan 1, 2004
Technical service bulletin
communication type
Fuel System, Other
component
2004
model years
7
vehicle entries
Official summary
Loose fuel cap message and diagnostic trouble code (dtc) p0440, p0455. *tt *mj
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.