Chevrolet Silverado 2017–2019 — technical service bulletin
Bulletin 19NA108 · NHTSA communication 10163238 · issued Jun 25, 2019
Technical service bulletin
communication type
Engine
component
2017–2019
model years
7
vehicle entries
Official summary
This technical bulletin provides a procedure to replace the head gaskets if found doubled stacked.
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.