January 24, 2023 Service bulletin

Flash: Radio Frequency Hub Module (RFHM) Updates Customers may experience a Malfunction Indicator Lamp...

Jeep technical service bulletin 08-021-23 for 2022 Jeep Wagoneer.

Bulletin number: 08-021-23
Component: Service brakes
Summary: Flash: Radio Frequency Hub Module (RFHM) 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 Code (DTCs) have been set: B21DD-84 - System Voltage-Signal Below Allowable Range. B21DD-85 - System Voltage-Signal Above Allowable Range. C151D-00 - Tire Pressure Sensor Location Undetermined. U1517-87 - Body Controller Secret Code-Missing Message. B1A71-01 - Passive Entry Antenna 1-General Electrical Failure. B1A72-01 - Passive Entry Antenna 2-General Electrical Failure. B1A73-01 - Passive Entry Antenna 3-General Electrical Failure. B1A74-01 - Passive Entry Antenna 4-General Electrical Failure. B1A75-01 - Passive Entry Antenna 5-General Electrical Failure. The customer may also experience one or more of the following: ?Fob Left Vehicle? message is displayed on Instrument Panel Cluster (IPC) after a remote start. Vehicle no-starts. This bulletin involves updating the RFHM module with the latest available software.

Owners of these vehicles have filed 39 complaints in the brakes category.

Vehicles covered

See the problems and recalls for an exact car

Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.