Chevrolet Silverado 2006 — technical service bulletin
Bulletin 06521 · NHTSA communication 10020207 · issued Jun 1, 2006
Technical service bulletin
communication type
Power Train
component
2006
model years
2
vehicle entries
Official summary
Product enhancement for inventory vehicles only. Transmission control module (tcm) electrical contact notice label - expires on september 30, 2006. *tt
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.