What does the P triangle symbol mean on a car?

[VonGabriela]

The P triangle symbol on a car refers to the parking sensors, also known as reverse parking sensors or backup collision warning system. It works by emitting ultrasonic waves through radar probes to calculate the distance to obstacles, then alerts the driver with different frequency warnings based on the proximity, helping the driver better control parking orientation. The advantage of parking sensors lies in their use of ultrasonic wave reflection to measure distance, making them unaffected by changes in light or weather conditions. However, parking sensors do have blind spots. Vehicles equipped with parking sensors only detect obstacles with heights between 43cm to 70cm. Therefore, drivers are reminded to always check road conditions visually when reversing, even with parking sensors installed.