Chevrolet Silverado 2001–2003 — technical service bulletin
Bulletin 01433A · NHTSA communication 10005453 · issued Jan 1, 2004
Technical service bulletin
communication type
Electrical System
component
2001–2003
model years
6
vehicle entries
Official summary
6.6l lb7 duramax diesel diagnostic trouble code (dtc)s p0201 - p0208. 2500 hd and 3500 models. Sit bulletin 1408805. *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.