Is the reversing radar covered by the 4S store warranty if it breaks down?

[LaCatherine]

The reversing radar is not covered by the 4S store warranty if it breaks down. Here is the relevant introduction about the reversing radar: 1. Principle: The reversing radar emits ultrasonic waves through ultrasonic sensors, and the ultrasonic waves are reflected back after hitting an obstacle and received by the ultrasonic sensor. The controller calculates the distance between the vehicle and the obstacle based on the time of ultrasonic emission and return, and finally alerts the driver with a rapid beep from the buzzer. 2. Main functions: Accurately measure the distance between the rear of the vehicle and the nearest obstacle; When reversing to the limit distance, it can emit a rapid warning sound to remind the driver to pay attention to braking; It can repeatedly emit a voice warning sound to remind pedestrians to pay attention.