What causes both headlights to go out at the same time?

What causes both headlights to go out at the same time?

There are many things that can cause your “both headlights” problem, but I have found the most common to be that both headlights are burned out. Sounds simple doesn’t it? The usual way it happens is one light burns out, you don’t notice, the second light burns out, now you notice.

Can a headlight bulb burn out at the same time?

Even though both of your headlight bulbs have been exposed to the exact same conditions, they usually won’t fail at exactly the same time. So it’s actually pretty common to have one bulb burn out before the other.

Why does my Head Light keep blowing out?

A good number of bulb manufacturers normally use the toughened glass for the manufacture of the headlights; however, this doesn’t make them strong enough to resist the thermal shock. This usually happens when the bulbs get in touch with water or moisture that has leaked within. Once this happens, the bulb will get damaged.

Why are my headlights not working in high beam?

If just one bulb fails to work in either high beam mode or low beam mode, it may be the bulb. Most headlight failures that are limited to just high or low beams are related to a relay or the high beam control switch.

There are many things that can cause your “both headlights” problem, but I have found the most common to be that both headlights are burned out. Sounds simple doesn’t it? The usual way it happens is one light burns out, you don’t notice, the second light burns out, now you notice.

Even though both of your headlight bulbs have been exposed to the exact same conditions, they usually won’t fail at exactly the same time. So it’s actually pretty common to have one bulb burn out before the other.

A good number of bulb manufacturers normally use the toughened glass for the manufacture of the headlights; however, this doesn’t make them strong enough to resist the thermal shock. This usually happens when the bulbs get in touch with water or moisture that has leaked within. Once this happens, the bulb will get damaged.

If just one bulb fails to work in either high beam mode or low beam mode, it may be the bulb. Most headlight failures that are limited to just high or low beams are related to a relay or the high beam control switch.