I just bought a 2016 Sonata with 85k mile. And I come to find out that when I turn on lights at night the tail lights and brake lights go on and brake lights stay on. During the day when the lights are off the brake lights work fine, they only turn on when the brake pedal is pushed so I think that eliminates the the brake switch. The problem is when I turn on the lights at night the brake lights turn on and stay on as if the brake was being applied? Any ideas?