Why does the front radar keep beeping on rainy days?
2 Answers
If the front radar keeps beeping, first check whether there are obstacles near the radar, which could be due to the license plate. Another possibility is that there are foreign objects around the radar probe, such as dust or dirt. Additionally, in winter, if water around the probe freezes after washing the car, the probe may also keep beeping. Below is relevant information about front radar false alarms: 1. Front Radar: The front radar, also known as front parking radar, front-mounted radar, or front radar, is used to detect the distance of obstacles in front of the car during parking or slow-speed driving (less than 15 km/h). It provides information on the distance, direction, and area of obstacles and alerts the driver in a timely manner. This assists the driver in parking, slow-speed driving, following vehicles in traffic, or lane changes, helping to reduce or eliminate collisions and scrapes caused by poor visibility when moving forward. 2. Performance: The performance of front parking radar mainly includes detection range, accuracy, display stability, etc. Special attention should be paid to the maximum detection distance, which must be sufficiently far. Most products have a range of 35cm-120cm, while good products can reach 35cm-260cm. A front parking radar with a wider range can detect targets earlier, allowing the driver to anticipate and take precautions sooner. However, excessively pursuing the minimum detection distance is meaningless, as the inertia factor during braking must be fully considered in actual use.
I've encountered the issue of the front radar randomly beeping on rainy days quite a few times. The main reason is that rainwater wets the surface of the radar sensor or gets it covered with mud and dust, interfering with its signal transmission and reception. After driving for so many years, I've realized this isn't a major malfunction but rather a common design flaw. When raindrops or dirt cover the radar head, it mistakenly detects an obstacle ahead and triggers false alarms. My experience suggests that wiping the radar area with a damp cloth after parking each time to keep it clean can help alleviate the problem. If it happens frequently, it might be related to the sensor being installed too low, making it more prone to water splashes, or the sensor may have aged, causing abnormal sensitivity. Additionally, during heavy rain, the system might short-circuit due to moisture, so it's advisable to check if the wiring is properly sealed before the rainy season. While it's a minor issue that can be tolerated, if it persists, it can affect driving mood and safety.
