Chevrolet Silverado 3500 2011 — technical service bulletin
Bulletin 14353 · NHTSA communication 10090458 · issued Oct 13, 2014
Technical service bulletin
communication type
Engine and Engine Cooling
component
2011
model years
2
vehicle entries
Official summary
14353 - special coverage. On some vehicles, the service engine soon light may illuminate due to an inoperative exhaust gas recirculation (egr) cooler bypass valve. Dealers are to replace the egr cooler bypass valve.
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.