Chevrolet Express 1996–2002 — technical service bulletin
Bulletin 020604020B · NHTSA communication 10004726 · issued Oct 1, 2003
Technical service bulletin
communication type
Unknown OR Other
component
1996–2002
model years
14
vehicle entries
Official summary
This bulletin is being revised to inform dealers that the vcm / pcm (powertrain control module) may be susceptible to corrosion and / or water intrusion. *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.