I just wanted to let you know that I solved the problem with the headlights.I discovered, by accident, that the rear hatch was not closed properly. I closed it securely,boosted it to crank it,let it run about ten minutes,turned it off, cranked it back up, turned it off, and I've been driving it all weekend, and lights work as they are supposed to. I think it goes into a battery protection mode when something is left on, and you have to correct the problem,rear hatch not closed, then disconnect the battery for about 30 seconds, then reconnect it to reset. Anyway, this has apparently fixed my problem.