Chevrolet Blazer 2003–2004 — technical service bulletin
Bulletin 3398 · NHTSA communication 10013567 · issued Apr 21, 2005
Technical service bulletin
communication type
Visibility
component
2003–2004
model years
4
vehicle entries
Official summary
Water leak from sunroof into headliner. *eh
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.