Chevrolet Silverado 2003–2004 — technical service bulletin

Bulletin 01188A · NHTSA communication 10007850 · issued Jan 1, 2004

Technical service bulletin

communication type

Exterior Lighting

component

2003–2004

model years

vehicle entries

Official summary

Unable to locate emergency light relay and/or blunt cut wires. *tt

Vehicles covered

2003 Chevrolet Silverado
2004 Chevrolet Silverado
2003 GMC Sierra
2004 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.