So a few weeks ago I noticed when I pulled in my garage that my lights weren't on. I asked my daughter if she saw them on when I was following her and she said they weren't. This is during the daytime. At night they work just fine and after a few moments after pulling into the garage and shutting the door so it's dark they come on. Is this an expensive fix? And what is causing it? I know that I can turn them on manually but I don't bother doing that because I just know that I will forget to turn them off and come out to a dead battery. Let me know if this is worth bothering with or letting it go as long as they come on at night. Thanks!