Buick Regal 2001–2002 — technical service bulletin
Bulletin 05551 · NHTSA communication 10017076 · issued Sep 1, 2005
Technical service bulletin
communication type
Engine and Engine Cooling
component
2001–2002
model years
8
vehicle entries
Official summary
Special policy adjustment-catalytic converter. The vehicle may experience a condition where the vehicle's exhaust catalytic converter was replaced due to the complaints of lack of power or illumination of the malfunction indicator lamp. *sc
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.