Chevrolet Corvette 2001–2002 — technical service bulletin
Bulletin 020604005 · NHTSA communication 629487 · issued Feb 1, 2002
Technical service bulletin
communication type
Electrical System
component
2001–2002
model years
4
vehicle entries
Official summary
Subject regarding revised diagnostic trouble code p1221 servic emanual udpate. *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.