Chevrolet C4500 2006 — technical service bulletin
Bulletin 3650 · NHTSA communication 10018969 · issued Jan 26, 2006
Technical service bulletin
communication type
Engine and Engine Cooling
component
2006
model years
8
vehicle entries
Official summary
Engine overheating no coolant flow. *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.