Chevrolet Lumina 1996–1997 — technical service bulletin
Bulletin 99021 · NHTSA communication 608372 · issued Aug 1, 1999
Technical service bulletin
communication type
Electrical System
component
1996–1997
model years
8
vehicle entries
Official summary
Subject regarding spark plug wire failure. *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.