Actually, the bulbs don't blink, it's just the clicking sound the hazards make. Either way it eventually kills the battery. It'll do this while it's just sitting in the garage being ignored. Seems to happen every few days. The only way to get them to go off is starting the car. Before I replace the $80 multifunction switch I wanted to post this up and see if y'all agree that it's probably the multifunction switch. I did have a set of export tail lights wired in about 8 months ago. So I can't lie and say I don't suspect that also.