Rear view cameras and parking sensors help a lot in parking and backing up your car. However, these technologies don’t help in seeing oncoming cross traffic while backing up. RCTA or Rear Cross-Traffic Alert system is the solution for such tricky situations.
RCTA warns you whenever a vehicle enters in your backing path. There are two sensors in the rear bumper that detect movement from the right or the left rear of the car at 120-degree angle. A warning tone on dashboard alerts the driver if the sensors detect any movement. In short, this technology is a great help in avoiding collisions while backing up.
See the video below to check how RCTA work.
In short, this technology is great to make the drivers even more dumb than ever.
so it detectes only movement and not static obstacles