What is the rear button in the car?
2 Answers
The rear button in the car is for rear windshield defogging. Pressing it can remove fog from the rear windshield. The rear button is represented by a square with an upward wavy line icon. The reasons for fog on the outside of car windows are: 1. The temperature of the car window is below the dew point; 2. There is a significant temperature difference between the inside and outside of the car. Methods to deal with fog on car windows include: 1. Turn on the car's air conditioning system to cool and direct cold air onto the foggy window; 2. Mix detergent with water and apply it to the outside of the car window with degreasing cotton or a clean, soft cloth; 3. Open the sunroof or window to allow air convection inside the car; 4. Install window heating and defogging functions.
Every driver knows that the rear button on the car is a very common control. I use it frequently while driving. It is usually located on the air conditioning or climate control panel, prominently labeled as "rear." Pressing it mainly activates the rear air vents, allowing passengers in the back to enjoy airflow. Some models even allow independent temperature settings for the rear, eliminating the need to rely on front-seat adjustments. Its position is typically on the center console, and operation is straightforward: one press turns it on, and another may turn it off. I remember taking my family out, and the kids in the back would often get hot—activating the rear button quickly cooled them down. Additionally, if no one is sitting in the back, turning it off can save some electricity, which is also eco-friendly. Overall, this design enhances rear-seat comfort, especially during summer traffic jams, providing excellent ventilation. I recommend testing it when buying a car—don’t let it go unused.
