Chevrolet Silverado 2003–2005 — technical service bulletin
Bulletin 3057 · NHTSA communication 10011757 · issued Jan 31, 2005
Technical service bulletin
communication type
Steering
component
2003–2005
model years
12
vehicle entries
Official summary
Service 4 wheel steer message with diagnostic trouble code c0455. *eh
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.