Jeep Grand Cherokee 2021–2022 — technical service bulletin
Bulletin 9004499 · NHTSA communication 10220635 · issued Mar 16, 2022
Technical service bulletin
communication type
Power Train
component
2021–2022
model years
3
vehicle entries
Official summary
VALVE BODY & CONTROL UNIT, Transmission This valve body is currently unavailable from Mopar. Order the transmission assembly.
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.