What is the function of the car rear?

[Adalynn]

The car rear function is for rear window defrosting and defogging. Pressing it can remove fog from the rear windshield. Typically, a button labeled with this word appears on the air conditioning control panel. Generally, this button also has a symbol, which is a rectangle with three upward wavy lines inside. When the rear windshield fogs up or there is heavy snow accumulation on the outside of the rear windshield, the owner can activate this button. The rear windshield contains many horizontal heating wires that start heating to remove fog and snow from the glass, ensuring the owner's driving safety. For some higher-end vehicles, this button has an additional function: rearview mirror heating. When this button is activated, vehicles equipped with rearview mirror heating will also start heating the rearview mirror lenses.

[MacSamantha]

Actually, the rear function of a car is mainly related to reversing, such as rear radar and reversing camera, which help experienced drivers like me avoid a lot of trouble. I remember one time in a mall parking lot, the space was extremely tight, and it was all thanks to the rear system beeping to alert me about the distance to obstacles behind, otherwise I probably would have hit a pillar. Nowadays, this feature is very common—it displays a real-time rearview image or sounds an alarm when reversing, significantly boosting safety. Statistics show that such systems can reduce reversing accidents by over 50%, especially useful when children or pets are playing in blind spots. With 30 years of driving experience, I consider rear functions essential safety equipment, and I always prioritize checking this feature when choosing a car. Normally, I don’t even need to crane my neck when reversing; just listening to the alerts allows me to back up smoothly and confidently—it’s both worry-free and practical. I strongly recommend that new drivers also enable this function and not leave it unused.

[StDerek]

The rear system has made parking so much easier! As someone who frequently uses the family car, the rearview camera feels like an extra eye, clearly showing the situation behind the car and avoiding scratches on the neighbor's vehicle. Before, parking in narrow residential areas required several back-and-forth attempts, but now it's done in one go, saving time and effort. The sensors beep faster when approaching obstacles, making the operation feel as simple as playing a game. This design is really thoughtful, especially useful during nights with poor visibility, eliminating worries about accidental scratches. I think every car should come standard with it—given the tight parking spaces in cities, the rear function is an absolute lifesaver. After using it for several years, I've become completely reliant on it, and it has significantly improved my driving quality of life.

[VanJames]

The rear function is essentially a reverse parking assistant, operating via the rearview camera and rear radar. When reversing, the camera captures the rear view and displays it on the screen, while the radar emits ultrasonic waves to detect proximity and alerts when getting too close. The principle isn't complicated, but the effect is fantastic—it helps me accurately judge positioning while driving. Maintenance is also easy; just wipe the lens if it gets dirty.