Buick Regal 2004 — technical service bulletin
Bulletin 3354 · NHTSA communication 10014948 · issued May 12, 2005
Technical service bulletin
communication type
Electrical System
component
2004
model years
4
vehicle entries
Official summary
Engine wiring harness causing multiple driveability concerns. *eh
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.