Change in brake pedal?

dear friends I have a problem with Frenim and I am waiting for your help. The problem is developing, I close the ignition of my vehicle, I do not press the brake and do not pump, after 15 minutes, the brake pedal becomes hard to press. There is no problem while the vehicle is working, it holds very well, but when the ignition was switched off, it was pumped 3.4 times and then the pedal was hardening. I am waiting for the help of knowledgeable friends, thank you in advance.

there is no problem. the brake pedal becomes stiff when the vehicle is not running. don't worry :)

Thank you guys for your interest. I will not bother you, God forbid him. :-)

If there is any problem with the brake, the fault light will be on already.

I noticed in the same yesterday after the car started, there was no problem.

Brother had the same incident with me. I went to the industry and the service. They said normal service even said that the service is a sign that the brake is better.