Chevrolet Express 2003–2004 — technical service bulletin
Bulletin 3375 · NHTSA communication 10013493 · issued Apr 20, 2005
Technical service bulletin
communication type
Engine and Engine Cooling
component
2003–2004
model years
4
vehicle entries
Official summary
Coolant leak from the lower radiator hose. *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.