Chevrolet Express 2004–2012 — technical service bulletin
Bulletin SC-14652 · NHTSA communication 10058722 · issued Jul 1, 2015
Technical service bulletin
communication type
Engine and Engine Cooling
component
2004–2012
model years
10
vehicle entries
Official summary
Chevrolet/gmc: tsb contains an owner's notification letter. Select document search button below. Some trucks will experience an increased heater resistance or reductant system performance due to an offset in temperature sensor of diesel emission reduction fluid tank reservoir, causing the malfunction indicator lamp to illuminate. Model 2010-12 express, savana, 2011-12 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.