When I am using cruise control, my car will just randomly slam on its breaks. I have taken my car into the dealer multiple times, and they have written it off everytime. They have said it-??s -??direct sunlight-?? yet I can prove it-??s not happening in the sunlight. It happened again today when it was cloudy. It-??s also happened before the sun came up in the morning. I have even filed a case with Hyundai directly, and they said if they can-??t get it to mimic it, then they can-??t do anything about it. But it-??s so random, sometimes it happens 50 miles from home, other times it-??s 300 miles from home. Always willing to let anyone inspect my vehicle to help solve this issue. I-??ve been taking it to my dealer for a full year until I found out I needed to come put it here. It-??s random, it won-??t happen in the same spot twice. But every time it-??s done it, there is never a vehicle in front of me. My assumption is there is a defect with the adaptive cruise control. I-??ve talked with Hyundai and they claim they-??ve never heard of this happening to anyone, yet when I google it, there are MULTIPLE forums with people stating this exact thing is happening to them. SAFETY issue is it slams on the brakes so hard I-??ll go from 80 to 65 before I can get the cruise control off. If someone is behind me when it does this, they will slam into me.when I-??m dropping 15 mph quickly, that vehicle behind me will hit me like I-??m a stopped object. No warning lights before it happens. This has been happening since I bought my vehicle at 0moled to now where I have 34k miles

- Twin Falls, ID, USA