March 10, 2026 Service bulletin

Flash: Global Telematics Box Module (TBM) Updates Customers must experience a Malfunction Indicator Lamp...

Jeep technical service bulletin 08-105-26 for 2026 Jeep Wagoneer and 2026 Jeep Grand Wagoneer.

Bulletin number: 08-105-26
Component: Electrical system
Summary: Flash: Global Telematics Box Module (TBM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● B22A9-96 - ECU Internal Performance-Component Internal Failure. ● B1560-11 - Cellular Antenna 1-Circuit Short To Ground. ● B1560-13 - Cellular Antenna 1-Circuit Open. ● B1561-11 - Cellular Antenna 2-Circuit Short To Ground. ● B1561-13 - Cellular Antenna 2-Circuit Open. ● B1562-14 - GPS Antenna-Circuit Short To Ground Or Open. The customer may experience the following: ● Uconnect Box requires service message at start up on the display screen. This bulletin involves reprogramming the TBM with the latest available software.

Owners of these vehicles have filed 1 complaints in the electrical category.

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