Chevrolet Avalanche 2004 — technical service bulletin
Bulletin 01339 · NHTSA communication 10004110 · issued Nov 18, 2003
Technical service bulletin
communication type
Engine and Engine Cooling
component
2004
model years
8
vehicle entries
Official summary
Hvac blower motor fan stays on in the high blower position. Service vme. *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.