Jeep Grand Cherokee 4XE 2023 — technical service bulletin
Bulletin 25-001-25 REV. A · NHTSA communication 11025024 · issued Oct 29, 2025
Technical service bulletin
communication type
Fuel/propulsion System
component
2023
model years
1
vehicle entries
Official summary
Gasoline Particulate Sensor Lines Incorrect Routing Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P226D - Particulate Filter Deteriorated/Missing Substrate Bank 1. ● P2453 - Particulate Filter Pressure Sensor "A" Circuit Range/Performance. Customers may experience the following: ● Check Engine warning lamp on in the Instrument Panel Cluster (IPC) This bulletin involves inspecting and possibly rerouting the gasoline particulate sensor lines.
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.