How do you fix a hood latch when the hood won't lock into place?

Things to check, is the release all the way in? Lubricate the lock, WD40 or similar. Adjust the lock up if needed. After you lubricate the lock mechanism, cycle the hood release cable a few times, so that the lubricant penetrates. Continue to lubricate the mechanism at least once every few months to prevent future sticking of the cable.