I purchased a 2016 MKX in April, 2018. A couple weeks after I had it, the headlight error message came on. The next night, it did not appear after being cleared by pressing the OK button and headlights were tracking as they should. Fast forward to November, 2018 the error came back again. Going to call the dealer and have them reprogram it. I already had it in the shop in May of this year as the battery was defective. They replaced the battery and I had a loaner for half a day.