SIDEWAYS JELLYFISH
What do fog light symbols look like and when is it against the law to use them?
Plus the penalty if you use them incorrectly
FOG lights are a legal requirement on vehicles and can be used in extremely low visibility, such as thick fog or mist.
If you use your fog lights at the wrong time you could be endangering other drivers and potentially breaking the law.
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What does the fog light symbol look like?
All cars are fitted with rear fog lights by law, and many UK vehicles have them situated on both the front and back.
When you turn your fog lights on, a symbol with the fog light icon will be illuminated on your dashboard to remind you they are on.
This is called a tell-tale light and is standard around the world.
The symbol for front fog lights is usually green, whereas one for rear fog lights is amber.
Front fog lights are represented with a green light shining left, with a wavy line through the beam.
The rear fog light symbol depicts an amber light pointing right, with the same wavy line through the beam.
Some people think the fog lights symbol looks like a sideways jellyfish.
The switch to turn them on can usually be found on a button on the dashboard, or on the steering wheel, or next to the dial you use to control your regular lights.
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If you can't find the correct symbol or work out how to turn fog lights on, refer to your car's logbook — it should tell you exactly where to find the switch and how they function for your specific vehicle.
When should you use your fog lights?
Fog lights are for use when fog and heavy mist significantly reduce visibility on the road.
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They're meant to be used when visibility drops below 100m — around the length of a football pitch.
You could risk the safety of yourself or other road users if you do not switch fog lights on in these conditions.
You should have your dipped headlights on at he same time to increase your visibility to other road users.
If you are involved in an accident during fog and you don't have your fog lights on, it could mean that your insurance is invalid.
According to the RAC, you should "use your common sense" when driving in fog.
They said: "If the fog is so severe that you’re struggling to see other vehicles, switch on your fog lights.
''But don’t keep switching them off and on again, as this can confuse other drivers."
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Is it ever against the law to use your fog lights?
If you use your fog lights when it isn't foggy, you could be endangering other road users and potentially breaking the law.
You should never use your fog lights in rain or drizzle — you could be fined by the police if caught doing so.
The Road Vehicles Lighting Regulations 1989 says that it is illegal to use your lights to dazzle drivers coming towards you.
Fog lights are very bright, which means they shouldn't be used in normal weather.
Switching or leaving your fog lights on when it's clear, just raining, or in light mist where visibility is greater than 100m, could land you with a fine.
As CEO Peter Wadell of explained: "It’s a common misconception that fog lights must always be on during winter or rainy weather.
"Many drivers don’t know that it is actually illegal to use your fog lights when they are not needed.
"This is because they can do more harm than good, dazzling other drivers and potentially causing other accidents."
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What is the penalty for using fog lights incorrectly?
If you use your fog lights incorrectly, you could be fined £30 at the roadside.
You won't get penalty points if dealt with in this way.
If you cause an accident or injure somebody, the penalties could be much harsher and include points, bigger fines and even a ban.
How do you turn on your fog lights?
Every car is different, so you'll need to check your manual to be sure you know how to switch on your fog lights.
In general you would start by switching your headlights on as usual.
Then locate the fog light symbol, which may be on the indicator stalk with the other light functions.
You may have to rotate the end of the stalk, or flick a switch to the right or left of the steering wheel.
Alternatively, it could be a button to press on your dashboard.
Whatever the method, you should familiarise yourself with how to turn the lights on before you go out in bad weather.
You also need to make sure you remember to turn them off again when they are no longer necessary.
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