ForToyota Camry XV70 2018~2024 for Daihatsu Altis XV70 2018~2024. The main function of the reversing radar is to use the ultrasonic principle to send ultrasonic waves from the probe installed on the rear of the car or the bumper of the front of the car to reflect the sound wave probe when reversing, so as to calculate the actual distance between the car body and the obstacle.