Chevrolet Silverado 2001–2005 — technical service bulletin
Bulletin 3092 · NHTSA communication 10010222 · issued Jan 1, 2004
Technical service bulletin
communication type
Power Train
component
2001–2005
model years
10
vehicle entries
Official summary
Allison lct 1000 buzz noise feel on tcc apply. *sc
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.