Chevrolet Silverado 1500 2019–2020 — technical service bulletin
Bulletin 18-NA-383 · NHTSA communication 10233335 · issued Mar 7, 2023
Technical service bulletin
communication type
Structure
component
2019–2020
model years
8
vehicle entries
Official summary
This technical bulletin provides repair information to correct a customer concern of water found in rear interior of cab due to water leak at rear sliding window.
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.