Buick Century 2000–2002 — technical service bulletin
Bulletin 020605001 · NHTSA communication 629447 · issued Feb 1, 2002
Technical service bulletin
communication type
Engine and Engine Cooling
component
2000–2002
model years
6
vehicle entries
Official summary
Some owners may comment on an exhaust system ping/crackle/snap type noise that is audible for a short period of time after the engine is turned off. *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.