Jeep Grand Cherokee 2022 — technical service bulletin
Bulletin 1801323 · NHTSA communication 10243278 · issued Aug 29, 2023
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 one or more of the following: ? **The engine oil life displayed on Instrument Panel Cluster (IPC) drops down too fast when the engine oil dilution reaches high level without the ability to recover. ? Incorrect reporting of fuel tank high pressure sensor value on wiTECH and Freeze Frame. ? The fuel door will get locked in the event of a leak failure.** ? 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. ? ?Performance Limited, Serv
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.