[Tagbert]

Teslas don’t use regen on the brake pedal. That is only using the friction brakes.

[josephcsible]

Right, but they use regen just by releasing the accelerator. So unless you're hitting both pedals at once, you will be regenerating every time you're braking.

[Tagbert]

Does the one-pedal regen continue to operate when you are pressing on the brake pedal?

[josephcsible]

Yes.

[sliken]

If you use both pedals at once it will reduce acceleration and warn you.