Chevrolet Silverado 2017–2019 — technical service bulletin
Bulletin PIE0499B · NHTSA communication 10158873 · issued Mar 4, 2019
Technical service bulletin
communication type
Fuel System, Other
component
2017–2019
model years
8
vehicle entries
Official summary
This engineering informational bulletin is requesting information and document the exact location of the wire chafing by taking a photo of the flex fuel pigtail as it appears BEFORE repairs are made.
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.