Jeep Grand Cherokee 2022 — technical service bulletin
Bulletin 18-080-24 · NHTSA communication 11009475 · issued Oct 23, 2024
Technical service bulletin
communication type
Power Train
component
2022
model years
1
vehicle entries
Official summary
"Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) has been set: ● P0629 - Fuel Pump Control Circuit High. ● P0171 - Fuel system Lean. ● P0087 - Fuel Rail Pressure Too Low - Bank 1. Customers may experience one or more of the following: ● Vehicle will not start. ● The Instrument Cluster Panel (ICP) unable to calculate the instantaneous fuel economy under heavy acceleration. ● The oxygen sensor can give incorrect v
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.