What Causes the Continuous Beeping of the Parking Sensor?
2 Answers
Here are the reasons and solutions for the continuous beeping of the parking sensor: 1. The parking sensor probe is blocked by something, causing signal interruption; Solution: Check if there is any obstruction in the radar holes at the rear of the vehicle. 2. The rear wiper hose is leaking or water has seeped into the parking sensor system; Solution: Seal the leak (or replace the hose) and drain any accumulated water in the radar system. 3. The radar ultrasonic signal is faulty, causing false alarms; Solution: Restart the engine, drive the vehicle to an open area, and try reversing again to observe the effect. 4. The parking sensor circuit is short-circuited or the radar module is faulty; Solution: Take the vehicle to a 4S shop or repair shop for inspection, check the circuit, or replace the radar module.
Last time my car's reverse radar suddenly kept beeping continuously. At first, I thought there was something behind that I didn't notice. Later, I checked myself and found that the reverse radar sensor was covered with mud. It was fine after washing it clean during car washing. Actually, this kind of continuous beeping fault is most commonly caused by the sensor being blocked. Small stones, frost, etc., can all block the probe. Another possibility is that the sensor itself is broken or there's a short circuit in the wiring. I've encountered a friend's car where the wires were chewed by mice, causing false alarms. Checking is simple: park the car in an open area and reverse to see if the radar still beeps. If you can't fix it yourself, it's recommended to go to a professional repair shop to read the fault codes with a diagnostic tool. Generally, it can be fixed for around a hundred bucks. Paying more attention to cleaning the rear bumper during regular car washes can prevent this problem.
