Jeep Grand Cherokee 4XE 2021–2025 — technical service bulletin
Bulletin 21-038-25 · NHTSA communication 11022010 · issued Aug 16, 2025
Technical service bulletin
communication type
Power Train
component
2021–2025
model years
8
vehicle entries
Official summary
Transmission Auxiliary Oil Pump Failure Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P0B0D-00 - Electric/Auxiliary Transmission Fluid Pump Motor Control Module. Customers may also comment on the following: ● Vehicle is in limp mode This bulletin involves replacing the transmission oil pump.
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.