Chevrolet Silverado 2016–2017 — technical service bulletin
Bulletin PIE0406A · NHTSA communication 10139263 · issued Jan 29, 2018
Technical service bulletin
communication type
Visibility
component
2016–2017
model years
5
vehicle entries
Official summary
This engineering informational bulletin is requesting information from the field on vehicles that have the condition of Rear Defogger Grid Inoperative and/or Will Not Defog Rear Window Properly
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.