Chevrolet Silverado 1500 2007 — technical service bulletin
Bulletin 4332 · NHTSA communication 10021395 · issued Apr 24, 2007
Technical service bulletin
communication type
Service Brakes, Air
component
2007
model years
6
vehicle entries
Official summary
Adding aftermarket trailer brake controller with integrated trailer brake controller. *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.