Chevrolet Silverado 2014–2015 — technical service bulletin
Bulletin PIT-5449 · NHTSA communication 10059079 · issued Aug 1, 2015
Technical service bulletin
communication type
Electrical System
component
2014–2015
model years
4
vehicle entries
Official summary
Gmc/chevrolet: on some trucks, message appears in dic regarding symptom of an intermittent service trailer brake and diagnostic trouble codes (dtc) are set in chassis control module. Model 2014 silverado 1500, sierra 1500, 2015 sierra, silverado. *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.