Buick Park Avenue 2000–2002 — technical service bulletin
Bulletin 020847003 · NHTSA communication 634519 · issued Jul 1, 2002
Technical service bulletin
communication type
Electrical System
component
2000–2002
model years
3
vehicle entries
Official summary
This bulletin is being issued to revise diagnostic trouble codes b1652, b1656 and b1658. *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.