The dimmer switch has likely failed. Replace it.
REVISE:
Check your fuses and your bulbs. Alternatively, the switch that controls your bright lights may have failed. To check it, take it out and check for current flow or resistance with a multimeter when switch is on vs. when it is off. You may also have a hi-beam relay, if so, check it as well (swap with known working relay of the same kind, i.e. horn relay)
Should be like any other vehicle. (pull turn signal stick back (high beams on), pull it back again (high beams off).
You need to turn your high beams down and ,after the car passes, you may turn them back to high beams
Pull back on the turn signal lever to change from high beams to low beams If the turn signal lever is pushed forward the high beams stay on and if the turn signal lever is pulled back all the way that is the " flash to pass " feature
Yes. That is by design. Pulling back on the switch is used for 'flash to pass'.
300 Feet.
Pull the turn signal lever toward you to switch to high beams and back again Pull the turn signal lever toward you to switch to high beams and back again
You wont be able to see anything, the light will just bounce back off the fog, never ever drive with your high beams on in hevy fog. just keep your low beams on.
No, it is best to use your low beam lights in fog. High beams are aimed higher. They bounce off the fog, reflect back to you, make it harder to see.
It should either be on the dash board where you can turn your interior lights on or you should pull back on the directional to switch. Cars run with the low beams on and the high beams are switched to in the dark when you feel you need extra light. I feel bad for the people that have been coming in the other direction from this car if its high beams have been on constantly.
Use your low beams or fog lights. Fog or snow will reflect high beam light back in your eyes making it more difficult to see.
Flash by putting your high beam on and switching back to low beam
You should never use high beams when you are driving in fog because they shine up and ahead which will be reflected straight back into your eyes by the fog. Low beams (which aim downwards) and front fog lights (which are lower) are far better suited.