Distance Control Alert

Hello, I cannot get a distance warning from the vehicle in front on the head-up display on the Peugeot 3008. When you reach a speed of 70 km, there are 2 lines on the screen showing that the system is working, but no matter how close I get to the vehicle in front, I know that the second I set should flash and give a warning, but I could not get this warning. I wonder if a software update is required, if this solves my problem, how much is the update cost, and is it only authorized services?

If there is a malfunction in the front sensors, the system will fail, sir. If you need to go to the authorized service you call the cleanest one and have it checked, of course, if you need a simple operation, it is only necessary for a person to pay around 150-250 TL. If there is a software update, they already do it after you say