get this, '19 jeep

ok, so yesterday, the new jeep gave my wife a low tire warning. So, I looked at it, and decided I'd top the tires up when they were cold in the morning. this morning I started the car up and it gave me the low tire warning and showed the vehicle data screen w/tire monitoring. So I started to fill the first tire, and then the hazard lights started blinking. wtf?, right? so I continued and then the horn honked and scared me because my head was right next to the damn horns. So I thought my wife was screwing with the autostart in the house. I went to the other front tire and the same thing happened, and so on. So evidently, that's a thing that it does. It let's you know when you're close to proper pressure and honks when it reaches the pressure spec. have you ever heard of that before?