DTC P177A-07: Transmission Friction Element A or B - Mechanical failures: Action

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

Refer to the relevant section of the workshop manual and check the automatic transmission fluid level and quality. Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and road test the vehicle. If the fault persists, install a new automatic transmission