Which is on and which is off, 'on' or 'off'?

[Zion]

on is on, off is off. Here are the related introductions: 1. "SEL" button: Menu selection confirmation button, usually located on the multifunction steering wheel. 2. "AC" button: Compressor switch, which is the air conditioning cooling switch. When the light on this button is on, it indicates that the compressor is working, which will increase fuel consumption, and its main function is cooling. 3. "MUTE" button: Mute button, which can mute with one click. Pressing the mute button will make the song sound disappear, but it is only muted, the song will continue to play and will not be terminated. Pressing this button again will restore the sound.

[StAmy]

To be honest, I was confused about this at first too. The English-labeled switches can indeed be puzzling, but here's a trick: "on" usually indicates the activated state, while "off" means deactivated. The most intuitive way to distinguish is by observing the arrow direction on the icon – there's typically a circle with a vertical line symbol on the switch, where an upward-pointing arrow usually means "on" and downward means "off". This is especially important when operating your car's AC system. For instance, during winter when defogging windows, you need to press the max defrost button (often marked with a fan-shaped pattern and "max" text), which activates the AC to assist in defogging. After startup, the "auto" button will automatically adjust temperature and airflow, but rotating the temperature knob is key for precise comfort control.