Chevrolet Silverado 2003–2004 — technical service bulletin
Bulletin 01946 · NHTSA communication 10006497 · issued Jan 1, 2004
Technical service bulletin
communication type
Exterior Lighting
component
2003–2004
model years
14
vehicle entries
Official summary
Hazard light flashes when turn signal applied. *mr
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.