When it's wet outside sometimes it gets a hard pedal when stopping. The brake light comes on in the dash. It also seems to be not long after its been started, after setting for a period of time. When you pull over to stop, if you shut the car off and wait to restart ,it goes away and is fine again. Took it to the dealer twice now and they found a vacuum code, but couldn't get it to duplicate the problem we had. So now we have to drive a car that has a brake problem and was told to wait till it gets worse or I guess till we hit someone. They have tested the brake system and found no problem. All I can say is awesome.