Why doesn't the reversing radar beep on rainy days?
2 Answers
If the problem is confirmed to be with the reversing radar, the first possibility to consider is a faulty buzzer. In this case, you need to purchase a new buzzer and install it. Additionally, recall whether your car has undergone any recent modifications. If so, it's possible that the wiring of the reversing radar was damaged during the modification process, requiring you to take the car to the original repair shop or a 4S store for inspection. Solution introduction: 1. During installation, the owner must pay attention to the installation height: generally, the front installation should be 45~55 cm from the ground, and the rear installation should be 50~65 cm. 2. To ensure driving safety, the owner should regularly clean the probe to prevent dust accumulation. 3. Do not cover the probe surface with hard objects, as this may cause false alarms or inaccurate distance measurement, such as when mud covers the probe surface. 4. Winter maintenance is also very important. In winter, the owner must ensure that the probe does not freeze.
The reverse radar doesn't beep on rainy days, usually because the rain affects the sensor's operation. Most reverse radars use ultrasonic waves to detect obstacles, and raindrops on the sensor may block the transmission or reception of the signal, causing the system to mistakenly think there's nothing and remain silent. Additionally, if water seeps into the circuitry or wiring connections, it can easily cause short circuits or corrode the connection points, which may render the radar system ineffective. When I encounter this situation, I first try gently wiping the small circular sensors at the back of the car with a dry cloth; if it still doesn't work, I wait for the rain to stop and then restart the vehicle to check. If the problem persists, it might be necessary to have a professional inspect the wiring for issues, such as aging connectors or damaged insulation. Regular maintenance, like avoiding parking in areas prone to water accumulation, can also prevent such minor troubles.