Chevrolet Silverado 2008 — technical service bulletin
Bulletin 14308A · NHTSA communication 10057635 · issued Mar 1, 2015
Technical service bulletin
communication type
Power Train
component
2008
model years
1
vehicle entries
Official summary
General motors 2008 chevrolet silverado hd diesel: tsb contains an owner notification letter. Select document search button below. Gmc sierra hd diesel: equipped with allison 6 speed automatic transmission. Transmission oil cooler line fluid leak. *lj
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.