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

WARNING: This page is about a different car, the 2021 Land Rover Range Rover Sport, 2020 Land Rover Range Rover Sport, and 2019 Land Rover Range Rover Sport. 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 Land Rover approved diagnostic equipment, clear the DTCs and retest. If the fault persists, install a new telematic control unit module