为什么车上会有REST这个标识

The REST identification mark represents the thermoelectric heating function. This function is effective after engine failure and provides a cool breeze for approximately 30 minutes. To use this function, do not immediately start the air conditioning; preheat the engine first. After starting the outside cooling system (outside循环 mode), switch to inside cooling system (inside循环 mode) after 2–3 minutes. In a confined space, discomfort may arise; open a small gap for the heat to escape.