What Causes False Alarms in Front Parking Sensors When No Obstacles Are Present?

[DelKatherine]

False alarms from front parking sensors when no obstacles are present usually indicate a malfunction in one of the two center-front sensors, requiring repair. Below are specific causes of this issue: 1. Sensor-related problems: The sensor mounting hole may be too small or tight, or the sensor might be installed on an iron or rigid bumper. 2. Sensor contamination: Paint overspray, snow accumulation, ice buildup, or other foreign materials on the sensor surface can interfere with its operation. 3. Poor sensor characteristics: The sensor may have inferior performance or operate in excessively low ambient temperatures. 4. Sensor failure: Front parking sensors consist of ultrasonic sensors, a control unit, and a display. They alert drivers about surrounding obstacles through audible signals or visual displays, helping eliminate blind spots and unclear visibility to enhance driving safety. A faulty sensor disrupts normal system operation, resulting in false alarms.