
Car distance sensors are installed at the rear of the vehicle. The distance sensor consists of components such as ultrasonic sensors, controllers, and displays or buzzers. The distance sensor, also known as a displacement sensor, is a type of sensor used to detect the distance between it and an object to achieve a preset function. The car distance sensor is used in adaptive cruise systems to detect the distance between the vehicle ahead and the host vehicle. It enables follow-up functionality by accelerating or decelerating based on the speed of the vehicle ahead. Car distance sensors are connected in series to form an alarm circuit. When one of the reversing radar distance sensors fails or is removed, the entire alarm circuit is in a broken state, and the entire reversing alarm system will sound an alert when activated.

I previously installed distance sensors on my own car, typically mounted on the front or rear bumper, specifically embedded in the plastic trim near the license plate or corners. For a sedan like mine, several ultrasonic sensors are installed on both the front and rear bumpers to detect obstacles during reversing or parking. You should note that the installation points must avoid obstructions, such as stickers or dirt buildup, which can affect accuracy. I recommend cleaning the bumpers every six months, avoiding direct water spray on the sensor areas to prevent short circuits. Different car brands may have slightly different placements; for example, some SUVs also place sensors on the sides to adapt to more complex road conditions. In short, the design considers safety and usability, and if the sensors malfunction, you should check for loose or damaged installations.

The placement of those little car distance sensors is quite particular. They are commonly installed in the front and rear bumper areas—for example, radar sensors are usually centered in the front, while ultrasonic parking sensors are scattered around the corners. Having driven multiple models, I've noticed that some imported cars even integrate the sensors into the bumper design, making them visually more discreet. The key is that their positioning directly affects detection range—placing them closer to the edges minimizes blind spots, ensuring safer parking. During installation, durability must also be considered; avoid mounting them too low to prevent water splashes from interfering in rainy conditions. For maintenance, it's recommended to regularly check cable connections and avoid modifications that could trigger false alarms. There's a significant difference between older brand models and new energy vehicles, as the latter often integrate more advanced technology.

Distance sensors are typically installed on the inner side of the bumper, with several at the front and rear, evenly distributed to ensure full coverage without blind spots. From my experience in car repairs, the bottom of the rear bumper is often the main location, facilitating the operation of the reversing radar. This position is chosen because it's close to the vehicle's structure, ensuring stability and minimal vibration. For maintenance, avoid impacts and clean with a soft cloth, being careful not to block the sensor points. New car designs also take aerodynamics into account, adjusting sensor positions to optimize response time.


