What is the function of the rear button on the car air conditioner?
2 Answers
The Rear button on the car air conditioner is for rear windshield defogging. Pressing it will remove fog from the rear windshield. The word "rear" literally means the back or rear part. In the context of car air conditioners, the rear button is actually the rear windshield defogging button. However, many car models now omit the English word "rear" and simply use an icon instead. Below are the types of car air conditioners: 1. By driving method: divided into independent and non-independent types. 2. By air conditioning performance: divided into single-function type and integrated heating and cooling type. 3. By control method: divided into manual type and electronically controlled pneumatic adjustment. 4. By adjustment method: divided into fully automatic adjustment and microcomputer-controlled fully automatic adjustment.
A few days ago, I took my kids out for a trip. With elderly and children sitting in the back seat, I pressed the REAR button. This button specifically controls the rear air conditioning—once pressed, the rear vents start blowing air. In summer, they often complain about the heat in the back, but with this button turned on, the rear seats cool down within five minutes. Some cars even allow independent temperature adjustment for the rear. If your car has a separate rear AC panel, it’s even more convenient. Just remember to turn off the REAR button if no one is sitting in the back, otherwise, it wastes cooling and increases fuel consumption. Many new SUVs now come with this feature—it’s really thoughtful, making family trips much more comfortable without arguments over rear cabin temperature.
