Chevrolet Silverado 2500 2020–2024 — technical service bulletin
Bulletin PIP5926A · NHTSA communication 10239164 · issued Jun 16, 2023
Technical service bulletin
communication type
Power Train
component
2020–2024
model years
10
vehicle entries
Official summary
This Preliminary information communicates that the t-case input seal, and/or the o-ring most likely is the source of the leak between the transmission and the t-case.
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.