Headlights problems of the 2005 Hyundai Santa Fe

When I apply the brake, it feels like the abs on steroids kicks in, on dry pavement, (this was after I had new brakes installed) I ended up having two new sets of brakes installed. Had it to the dealership for the same issue after they put the �factory brakes� installed for the same issue and they looked at me like I am crazy, so they greased what they could and said if it kept doing it to bring it back. This was oct 2017. It was good for a while and then started up in November and again in December about once a week. I bought a new 2018 elantra and gave the Santa Fe to my grandsons. They came over and said �grandma, what's up with the brakes� they finally knew what I meant. When driving on dry pavement, in the city, putting on brakes coming to a light then the abs kicks in. I put in a complaint to the consumers affairs at Hyundai. They told me to take it to a dealer and have them check it. My grandsons took it over to the same place and an older man drove it (keep in mind it does not do it all the time) and he said he could feel something and said it was the master cylinder and it would cost $800 to bleed the lines and put a new master cylinder in. Well, the brakes don't give out and they do not go all the way to the floor � they act like abs on steroids. So if I have them replace the master cylinder for $800, plus whatever, and it still does it, then what? I see others are having the same trouble � what is up Hyundai? sounds like this is happening to others too. :/ this started about June 2017 and sporadically until now. Few times a month and now more . For the lighting - the front headlight goes out once a year like clockwork and the interior light is only half on.