Chevrolet Avalanche 2002–2004 — technical service bulletin
Bulletin 01367 · NHTSA communication 10004149 · issued Nov 18, 2003
Technical service bulletin
communication type
Structure
component
2002–2004
model years
3
vehicle entries
Official summary
Noise from lower door or running board at road speeds. *tt
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.