Chevrolet Silverado 2015 — technical service bulletin
Bulletin PIP5227 · NHTSA communication 10112250 · issued Sep 24, 2014
Technical service bulletin
communication type
Fuel System, Gasoline
component
2015
model years
6
vehicle entries
Official summary
This Preliminary Information communication provides information to the technician about vehicles that may have Service Engine Soon Malfunction Indicator Lamp on. Technician will find Diagnostic Trouble Codes P0171 and P0174. Technician will need to check the ethanol content of the fuel with the J44175. If the fuel tested over 10% alcohol, determine if the vehicle is equipped with Regular Production Option Code (FHS), If not flush the fuel system and add E10 gas.
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.