Chevrolet Lumina 1996 — technical service bulletin
Bulletin 031403 · NHTSA communication 10001917 · issued Mar 14, 2003
Technical service bulletin
communication type
Engine and Engine Cooling
component
1996
model years
3
vehicle entries
Official summary
Installing a new air pump to correct emission control systems which may fail to operate and cause the male function indicator lamp, malfunction indicator lamp (mil), to illuminate. *tt 8jb
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.