Have you ever played a game of hide and seek and couldn't find someone because they were hiding in a spot you couldn't see? Well, just like that, cars also have a spot that they can't see called the blind spot.
Sometimes when driving, other cars can be hiding in your blind spot, which can be dangerous because you might accidentally hit them when changing lanes or turning. That's why car companies have started adding a feature called a blind spot monitor to help drivers avoid accidents.
The blind spot monitor uses special sensors and cameras that are mounted on the side mirror or rear bumper of the car. These devices can detect if there is another car in the blind spot and will alert the driver through a light or a sound. This lets the driver know that it's not safe to change lanes or turn until the other car has passed.
So, in summary, a blind spot monitor is a car feature that helps drivers see if there are other cars hiding in their blind spot so that they can avoid accidents.