I had the same thing. Dealer replaced the bulb and I could then use it for squirrel hunting, just not for driving.
The adjustment with the white end controls both the low and hi when it is turned, so by using the other, you can do the beams independently, and this helps. Mine were set up so if the hi beams focused correctly, then the low beams focused very close to the car, which makes it tough for driving on winding-onlit roads.