Chevrolet Silverado 2017–2018 — technical service bulletin
Bulletin 17NA302 · NHTSA communication 10137270 · issued Jan 11, 2018
Technical service bulletin
communication type
Equipment
component
2017–2018
model years
5
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.