Regenerative braking is disabled at very low speeds as it becomes inefficient/ineffective. That's when the mechanical brakes need to be applied. Some cars mig

Regenerative braking is disabled at very low speeds as it becomes inefficient/ineffective. That's when the mechanical brakes need to be applied. Some cars might need a bit more pressure on the brake pedal for such. In a Prius (2nd gen.) this transition is barely noticeable (and I assume was the reason for some of those "sudden acceleration" claims years ago). This all applies of course only to the soft-braking when coming to a stand-still. When braking hard, the mechanical brakes are applied at high speed as well.