Chevrolet Impala 2000 — technical service bulletin
Bulletin 040604058 · NHTSA communication 10011214 · issued Aug 1, 2004
Technical service bulletin
communication type
Electrical System
component
2000
model years
1
vehicle entries
Official summary
Revised pcm controlled air conditioning (a/c) circuit diagnosis and revised information sensors/switches description. *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.