Bulbs are burnt. replace both. low and high are together in the same bulb.
the dimmer switch is going out if you are experencing that.
Your low beams are burnt out. that happens alot
The headlights are on two different fuses. The high beams are on one fuse and the low beams are on another fuse. The fuse for the low beams may need to be changed.
Check the bulbs Check the relay Check the switch
Go to Autorepair.com
fuse, bulbs or switch
Check bulbs Check hi-low switch
when high beams are turned on low beams go out u need to look at the wires and connetors 4 the high beams are not working on that side good luck
Low beams - 9006 bulbs or HB4 bulbs High beams - 9005 bulbs or HB3 bulbs
None
check fuse for the running light module.
Hit another car at a high speed.