Chevrolet Silverado 2012 — technical service bulletin
Bulletin PB-14043 · NHTSA communication 10055497 · issued Mar 1, 2014
Technical service bulletin
communication type
Power Train
component
2012
model years
2
vehicle entries
Official summary
Chevrolet/gmc: at time of production, some vehicles were manufactured with an incorrect transmission thrust bearing, that can result in noise and poor operation of transmission. Model 2012 silverado hd, sierra hd. *pe
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.