Jeep Grand Cherokee 2023 — technical service bulletin
Bulletin 25-001-25 · NHTSA communication 11023608 · issued Sep 26, 2025
Technical service bulletin
communication type
Unknown OR Other
component
2023
model years
3
vehicle entries
Official summary
Not applicable to vehicles built for US market. 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 particu
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.