🚗 Ultrasonic Parking Assist Sensor
This ultrasonic parking sensor is used in the bumper to help the driver judge distance when parking or reversing. It is an important part of the parking assist system, especially on large SUV models where rear and corner visibility is limited. A good sensor helps reduce the risk of hitting walls, poles, other vehicles, or low obstacles.
🔧 How It Works
The sensor sends out high-frequency sound waves that bounce back from nearby objects. The control unit reads the return time and calculates the distance. When an object gets closer, the warning beeps become faster, helping the driver react in time. The part must read accurately and fit correctly in the bumper for the system to work properly.
⚠️ Signs of a Faulty Sensor
If this sensor is damaged, dirty inside, cracked, or electrically faulty, the parking assist system may give false alerts, constant beeping, no warning sound, or show an error on the dashboard. In some cases, the full parking sensor system may stop working until the faulty unit is replaced.
✅ Compatible Models
- Lexus Gx400/460
- Lexus Gx460
