Chevrolet Silverado 3500 2008 — technical service bulletin
Bulletin RB-11167 · NHTSA communication 10040505 · issued Jul 1, 2011
Technical service bulletin
communication type
Engine and Engine Cooling
component
2008
model years
3
vehicle entries
Official summary
Gm service campaign: see document search button for owner letter. New calibrations to the ecm. *rm
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.