Jeep Grand Cherokee 2025 — technical service bulletin
Bulletin 08-011-26 · NHTSA communication 11027726 · issued Jan 15, 2026
Technical service bulletin
communication type
Electrical System
component
2025
model years
3
vehicle entries
Official summary
Flash: Global Telematics Box Module (TBM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● B22A9-96 - ECU Internal Performance-component Internal Failure. ● B1560-13 - Cellular Antenna 1-circuit Open. ● B1561-13 - Cellular Antenna 2-circuit Open. ● B1562-13 - GPS Antenna-circuit Open.** Customers may experience the following: ● Uconnect Box requires service message at start up. This bulletin involves reprogramming the TBM with the latest available software.
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.