Chevrolet C4500 2006 — technical service bulletin
Bulletin 3570 · NHTSA communication 10017416 · issued Nov 8, 2005
Technical service bulletin
communication type
Electrical System
component
2006
model years
7
vehicle entries
Official summary
Diesel engine glow plug control module causing no communication with gmlan. *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.