Might be due to both the headlight bulbs being burnt out. Need to check fuses also.
If by "dim headlights" you mean low-beams... the bulbs are bad and must be replaced.
The headlights on the 2002 Toyota Tacoma might work on dim but not on high beam because of a blown fuse. If the headlights are too dim to see properly in the dark, there could also be a problem with the alternator and the charging system in the vehicle.
A bad ground wire will cause dim headlights, or will cause lights not to work.
Usually dim headlights are caused by a poor ground connection.
A common reason for dim headlights are failing bulbs that need to be replaced or improper cleaning. It may also be a more serious wiring issue that will need additional work.
You've got a bad headlight switch and need to replace it, that's the switch you pull in the dash to turn the lights on. That's why the headlights only work on bright but not dim.
Yes, if you have dual beam lamps.
the courteous time to dim your headlights is as soon as you see another vehicle, or within one half mile.
one or more headlights don't work but others do.none of the headlights will work.high beams work but low beams don't and vice versa.lights flicker and sometimes go dim.
Perhaps the part of the headlight bulb has burned out.
when there are oncoming cars, it is appropriate to dim your headlights when they are about 300ft away. Check your diver manual for the most correct answer.
Your headlights may not dim because you don't have dimmer lights. Dimmer lights can blow and leave you with just the high beams.