Jeep Grand Cherokee 2023 — technical service bulletin
Bulletin 14-003-24 · NHTSA communication 11001242 · issued May 15, 2024
Technical service bulletin
communication type
Fuel/propulsion System
component
2023
model years
1
vehicle entries
Official summary
"Fuel Tube Replacement **Customers must experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following DTC has been set:** ● P0456 - EVAP System Small Leak."
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.