So I just replaced both HID headlight bulbs on my wife's 2009 Enclave. Everything is working fine but once replaced they were both point down and towards the passengers side. I found the vertical adjustment under the hood but cant figure out the horizontal adjustment and have found very little on the issue online. I can get up under the wheel well, take the back cover off the light bulb assembly and physically move it to where they need to be, but as soon as I crank it back up they automatically move back to the right. Any ideas?