Chevrolet Impala 2003–2005 — technical service bulletin
Bulletin 3043 · NHTSA communication 10009662 · issued Jan 1, 2004
Technical service bulletin
communication type
Electrical System
component
2003–2005
model years
6
vehicle entries
Official summary
Intermittent security lamp on. Diagnositc trouble code b2958 or b2960 may or may not be present. *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.