In Tucki single pedal mode, when the accelerator is released, the vehicle will enter a deceleration state, but it will not brake immediately. Usually, pressing the brake pedal will trigger the brake system and light the brake light.
Therefore, if you release the accelerator of a Tucki vehicle in single pedal mode, the brake light will not normally turn on. Only when you press the brake pedal will the brake light come on. However, please note that there may be some differences between different models. It is recommended that you consult the relevant vehicle manual or consult the manufacturer for accurate information.