Chevrolet Silverado 1500 2007 — technical service bulletin
Bulletin 070842003 · NHTSA communication 10021333 · issued Feb 1, 2007
Technical service bulletin
communication type
Exterior Lighting
component
2007
model years
6
vehicle entries
Official summary
Turn signals have increased flash rate (reprogram bcm). *kb
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.