DTC U2109-91: Back-up Battery - Parametric: Action

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2019 Land Rover Range Rover Evoque, 2018 Land Rover Range Rover Evoque, 2017 Land Rover Range Rover Evoque, 2016 Land Rover Range Rover Evoque, and 2015 Land Rover Range Rover Evoque. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Following an emergency call or stolen vehicle tracking alert, a new telematics control module internal battery must be installed before this DTC can be cleared

Install a new telematics control module internal battery. Using the Jaguar Land Rover approved diagnostic equipment, reset the non-rechargeable battery power level following the backup battery replacement process