Buick Century 2002 — technical service bulletin
Bulletin 020846005 · NHTSA communication 634678 · issued May 1, 2002
Technical service bulletin
communication type
Electrical System
component
2002
model years
13
vehicle entries
Official summary
Subject regardng the addition of diagnostic trouble code u1500 for generation 4 onstar. *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.