Why does the car reversing radar keep beeping?
2 Answers
Reasons why the car reversing radar keeps beeping: 1. The reversing radar sensor is dirty, just wipe it clean; 2. The reversing radar alarm circuit is faulty, check if there is any abnormality in the alarm circuit; 3. The reversing radar sensor or controller is malfunctioning, and the faulty components need to be replaced. The reversing radar is a safety assistance device for parking or reversing the car. It can inform the driver about surrounding obstacles through sound or more intuitive display, eliminating the troubles caused by the driver's need to look around when parking, reversing, or starting the vehicle, and helping the driver to overcome blind spots and blurred vision.
After my last car wash, the reversing radar kept beeping non-stop. It turned out that the sensors at the rear were covered in mud. The car wash attendant didn't clean the sensor area properly, and the dirt blocked the ultrasonic waves, making the radar think there was an obstacle behind and beeping constantly. Wiping the sensors clean with a damp cloth immediately silenced it. Since then, I always make sure they clean the radar sensor area during every wash. Frost in winter or water droplets on rainy days can also cause false triggers, so remember to check regularly. Another time, a neighbor's kid randomly stuck a sticker right over a sensor, and removing it fixed the issue. Modified license plate frames blocking the sensors can also cause this problem, which is the easiest to check for.
