Chevrolet Impala 2004 — technical service bulletin
Bulletin 06282004 · NHTSA communication 10013161 · issued Jun 28, 2004
Technical service bulletin
communication type
Wheels
component
2004
model years
3
vehicle entries
Official summary
Left and right front wheel assemblies in which the two bolts that attach the front brake caliper to the steering knuckle were not tightened adequately. Campaign 04094 is scheduled. *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.