EV's, regenerative braking, and brake lights.

[mustang1]

As mentioned, they come on depending on the level of regen breaking. Any light braking and they don’t. It’s at at certain point do they kick in.

Yup, what he said.

 

[Bazzer]

This was a concern when I bought my Golf, but I discovered any regen braking and the brake lights come on.
I can turn off the regen braking so that it only kicks in if I manually downshift or if I use the brake pedal