1. Select module Navigator
2. Write down / or take a photo on System information for just in case
3. select Long Code and go through different bytes until found Rear Camera setting
4. Tick Rear Camera setting and change.
5. Reboot Navigator by press 3 buttons at the same time.( Not just ignition OFF and ON).Done!
6. Some mode need to go to Park assist Module to active the Rear camera.