Chevrolet Silverado 2017–2018 — technical service bulletin
Bulletin PIP5572 · NHTSA communication 10143458 · issued Jun 26, 2018
Technical service bulletin
communication type
Equipment
component
2017–2018
model years
4
vehicle entries
Official summary
This Preliminary information communicates to the dealer technicians that injector timing related DTCs are being investigated and to not replace injectors for DTCs.
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.