Chevrolet Silverado 2012–2014 — technical service bulletin
Bulletin PIP4560R · NHTSA communication 10112411 · issued Oct 16, 2013
Technical service bulletin
communication type
Power Train
component
2012–2014
model years
8
vehicle entries
Official summary
This Preliminary Information communication advises the technician that the Allison Transmission Control Module Part Number 24256861 has been removed from the General Motors Product Quality Center parts restriction.
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.