Chevrolet Silverado 2500 2022 — technical service bulletin
Bulletin 22-NA-137 · NHTSA communication 10239084 · issued Jun 22, 2023
Technical service bulletin
communication type
Power Train
component
2022
model years
4
vehicle entries
Official summary
This technical bulletin provides a procedure to locate and repair a transmission leak that may be coming from port plugs near the rear of the transmission.
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.