Difference Between the Front Windshield Defogger Button and the Rear Windshield Defogger Button?

[JackRose]

A fan-shaped button is for the front windshield defogger, while a rectangular button is for the rear windshield defogger. The differences between the front windshield defogger button and the rear windshield defogger button are: 1. Different defogging methods: The front windshield defogger button requires opening the air duct to blow air for defogging; while the rear windshield defogger button activates embedded heating wires to control heating. 2. Different functions: The front windshield defogger button controls the front windshield defogger, which is used when fogging on the front windshield obstructs visibility; the rear windshield defogger button controls the rear windshield defogger, which is used when fogging on the rear windshield obstructs visibility.