What is the difference between the front and rear windshield defogger buttons?
1 Answers
The differences between the front windshield defogger button and the rear windshield defogger button lie in their functions, shapes, and effects. Function: The front windshield defogger works by blowing air to remove fog, and the compressor activates when the front defogger is turned on. The rear windshield defogger uses heating wires to eliminate fog. Shape: A fan-shaped symbol represents the front windshield defogger, while a rectangular symbol indicates the rear windshield defogger. Effect: Turning on cold air to blow on the windshield provides immediate defogging results, but passengers may feel uncomfortably cold. If the humidity inside the car isn't dissipated, fog will soon reappear on the glass. Using hot air to defog the windshield is more effective than cold air, though the results take longer to appear. Once the hot air dries out the moisture inside the car, the windshield won't fog up again for an extended period.