Jeep Grand Cherokee 4XE 2022 — technical service bulletin
Bulletin 08-031-23 · NHTSA communication 10231811 · issued Jan 27, 2023
Technical service bulletin
communication type
Power Train
component
2022
model years
1
vehicle entries
Official summary
Flash: Hybrid Control Processor (HCP) and Auxiliary Hybrid Control Processor (AHCP) Updates Customers may experience one or more of the following: ?Service Charging System? popup when keying the vehicle to off while still in drive. Engine must be started twice to achieve drive ready (at low temperatures around -30°C, -22°F) when the vehicle was entered and started quickly. Radiator fan cycling while in park and with vehicle operational. May be described as ?breathing? sound from the front of the vehicle. ?Performance Limited, Service Fuel System? popup while driving. Radiator fan spinning at m
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.