Chevrolet Silverado 2001–2002 — technical service bulletin
Bulletin 250202 · NHTSA communication 629830 · issued Feb 25, 2002
Technical service bulletin
communication type
Engine and Engine Cooling
component
2001–2002
model years
4
vehicle entries
Official summary
High engine temperature readings when driving at highway speed with their snowplow in the up position on their 2500 hd and 3500 series pick up trucks. *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.