Chevrolet Silverado 2012 — technical service bulletin
Bulletin PIP5012C · NHTSA communication 10112994 · issued Apr 22, 2013
Technical service bulletin
communication type
Electrical System
component
2012
model years
3
vehicle entries
Official summary
This Preliminary Information communication provides information to the technician about vehicles that have a clunk noise or a harsh 6-5 downshift while driving at 50 to 70 miles per hour. Technician will reprogrammed the Transmission Control Module and a FastLearn procedure will need to be performed to correct the condition.
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.