SO I am assuming you got a single HID kit with a seperate high beam? If that is the case than more than likely the wires that go to the HID are switched around. On my brother and sister's HIDs that I installed for them there were three wires and their kits were the (much better in my opinion) bixenon kits that have the reflector in them that instead of having a seperate high bulb they just change the angle of the beam to higher. Anyways I have hooked up around 6 or 7 of these kits and on some of them if you get those three wires in the wrong order then the high will be on when the lows are supposed to and vice versa and all kinds of variations can get the wrong set up like yours with only the highs coming on. I called the company I got them from and they assured me that hooking the wires up in different combinations would in no way hurt the bulbs, so I kept exploring the different options like r-b-w or b-w-r or w-r-d and so on until I got the right one for both of their cars. The VX kit did not need to be changed the hook up for me was right on from the start, but I seriously would've gone with the bixenons instead of the seperate pale high halogen beam, but hopefully that helps a little.