I have had my lightbar for a few months now and it is hardwired into my tail lights and have never had a problem with it but recently when I turn on my daytime running lights or even my auto lights the light bar does not turn on when driving or idling which is weird because it used to do that and I do not know what to do Which is weird as well because when I unlock the car the lights would turn on

 

This probably isn't what you want to hear but I had 2 Opt7s go bad. If you hard wired their 4 way connector to your tail lights then use a voltmeter or light tester and see if you have voltage to the correct plugs with each light application then your light bar has gone bad.