Chevrolet Silverado 2017–2019 — technical service bulletin
Bulletin 17NA302 · NHTSA communication 10170699 · issued Dec 12, 2019
Technical service bulletin
communication type
Fuel System, Gasoline
component
2017–2019
model years
10
vehicle entries
Official summary
This informational bulletin provides information on availability for a locking gas cap for trucks are operated in high amount of dirt or dust which can migrate to the filler cap area.
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.