Chevrolet Silverado 1500 2023 — technical service bulletin
Bulletin 23-NA-063 · NHTSA communication 10235404 · issued Apr 6, 2023
Technical service bulletin
communication type
Fuel System, Diesel
component
2023
model years
2
vehicle entries
Official summary
This technical bulletin provides a procedure to clear out some crystals that may have formed in the DPF at freezing temperatures and how to clean out said debris.
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.