What does the setup button on a car mean?

[LaJake]

The setup button on a car means settings, which is commonly found on the dashboard or in-car multimedia, usually located below the central knob. Pressing the setup button will bring up options such as menu language, measurement units, time settings, and default values on the screen. The functions represented by various buttons in the car are: 1. The SEL button is the menu selection confirmation button, located on the multifunction steering wheel; 2. The OK button has the exact same function as the SEL button, but some cars use SEL while others use OK; 3. The AC button is the compressor switch, which is the air conditioning cooling switch.