Chevrolet Silverado 2017–2019 — technical service bulletin
Bulletin PIP5594 · NHTSA communication 10147379 · issued Oct 12, 2018
Technical service bulletin
communication type
Engine and Engine Cooling
component
2017–2019
model years
6
vehicle entries
Official summary
This Preliminary information communicates to the dealer technician that there may be a possibleMis-build of the Diesel Exhaust Fluid (DEF) Injector if it was built before provided break point.
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.