What does the REAR button on Volkswagen cars mean?

[BentleyMarie]

The REAR button in the car is the rear window defogger button. Specific introduction is as follows: Button function: The REAR button in the car appears in the car air conditioning system. The car air conditioning has related buttons such as the FRONT button and the REAR button. The FRONT button is for the front window defrosting, and the REAR button is for the rear window defrosting. The front window defrosting blows air onto the windshield, while the rear window defrosting relies on heating wires. Automatic shutdown: On the car's rear windshield, there are copper wires which are heating elements. By pressing the REAR button, the rear window heating wires are activated to defog. After the rear window defogger switch is turned on, it will automatically shut off after about ten minutes to protect the heating wires.