yes, there is. I have not done it, but I remember seeing something about it in the service manual. I will look it up when I get home if someone else has not replied sooner. I know for the fog lights there is a bolt that can be adjusted with a Phillips head screw driver, and I think the headlight adjustment is similar.
Try this PDF. Let me know if that's what you're looking for:
PDF for Headlight Adjustment from 2007 Repair Manual
Try this PDF. Let me know if that's what you're looking for:
PDF for Headlight Adjustment from 2007 Repair Manual