DTC B1179-04: Integrated GSM/GPRS Unit - System internal failures: Action

WARNING: This page is about a different car, the 2018 Jaguar XE and 2017 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: This DTC will cause the warning "SOS" not available to be displayed on the instrument cluster

Using the Jaguar Landrover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new telematics control module