What do auto and sync mean in a car?

[VanJoy]

Auto and sync on a car are function buttons for the automatic air conditioning system. The specific descriptions are as follows: 1. Auto button: Automatic mode. Pressing this button allows you to set the desired temperature, and the air conditioning system will automatically adjust the airflow volume, control the compressor's start/stop, and maintain the set temperature inside the car. 2. Sync button: Synchronization button for dual-zone automatic air conditioning. When the button light is on, it indicates that the air outlets on both sides of the car have the same temperature and are adjusted synchronously. That is, adjusting the temperature on one side will result in the same temperature on both air outlets. Dual-zone automatic air conditioning refers to a system with two temperature zones, allowing independent temperature adjustment for the left and right sides of the front cabin. Cars equipped with dual-zone automatic air conditioning can meet the temperature difference requirements for occupants in two different positions inside the car, and the independent temperature zones can be adjusted and changed freely.