Chevrolet Silverado 2001–2002 — technical service bulletin

Bulletin 01433 · NHTSA communication 10004178 · issued Nov 18, 2003

Technical service bulletin

communication type

Electrical System

component

2001–2002

model years

vehicle entries

Official summary

6.6l lb7 duramax diesel diagnostic trouble code (dtc)s p0201 - p0208. 2500 hd and 3500 models. *tt

Vehicles covered

2001 Chevrolet Silverado
2002 Chevrolet Silverado
2001 GMC Sierra
2002 GMC Sierra

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.