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How to use fog lights?

Gasaraki

Active Member
Oct 21, 2019
2,010
1,255
Syracuse, NY
I don't need a debate on the need for fog lights, etc.
I’m only interested in learning how to use fog lights (see first post)

I tried this morning to turn off lights, and selected fog lights. Nothing happened. When lights were on auto, I could toggle fog lights on and off, but that seems counter intuitive, as I believe fog lights are instead of, not in addition to main lights.
Is it possible to use fog lights only, if so, how.


Not trying? You absolutely tried and succeeded!
I get it, no need to keep repeating…Americans are bunch of idiots that don’t know how to drive, and Australians are superior drivers.
Fog lights turn on and off with your main headlights (when you turn the fog light on in the screen). You can't just have your fog lights on. Also if the car or you put on the high beams, the car will turn off the fog lights. This is exactly how it operates on my Subaru also.
 
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haroldo

Member
Apr 20, 2021
341
170
NJ
Also on this car the front fog lights may remain set to on but only light when low beams are on
Actually, this isn't correct.
I experimented this morning in a parking lot near a glass building (so I could see what was happening).
If you set lights to Parking Lights, you can turn on the Fog Lights, without the headlights (low beams) being on.
Not sure if there's enough illumination to try driving in a fog, as it was only slightly foggy this morning, but it works.

Really appreciate the way Tesla makes it so easy, and intuitive, to figure out how to use things (/sarcasm)
 

Candleflame

Active Member
Mar 9, 2015
3,197
1,494
QLD, Australia
Fog lights turn on and off with your main headlights (when you turn the fog light on in the screen). You can't just have your fog lights on. Also if the car or you put on the high beams, the car will turn off the fog lights. This is exactly how it operates on my Subaru also.

this is incorrect and defeats the purpose of fog lights.
you can switch the headlights off while havign foglights on if you want to.
Put the daytime running lights on only and then switch the fog lights on as well.
 

Candleflame

Active Member
Mar 9, 2015
3,197
1,494
QLD, Australia
Actually, this isn't correct.
I experimented this morning in a parking lot near a glass building (so I could see what was happening).
If you set lights to Parking Lights, you can turn on the Fog Lights, without the headlights (low beams) being on.
Not sure if there's enough illumination to try driving in a fog, as it was only slightly foggy this morning, but it works.

Really appreciate the way Tesla makes it so easy, and intuitive, to figure out how to use things (/sarcasm)

if you need to use foglights then the problems is TOO MUCH illumination as the light gets reflected back at you. If you dont get this there is no need to use fog lights.
 

haroldo

Member
Apr 20, 2021
341
170
NJ
if you need to use foglights then the problems is TOO MUCH illumination as the light gets reflected back at you. If you dont get this there is no need to use fog lights.
Seems like you're dead set intent on convincing people to not use fog lights, I get it.
Let's focus on answering the questions and the point of this thread, that is how to use it (not whether they should use it or not).
It's not for you, and you'll probably not use it, but there are others that are interested in learning, and there will be times when fog creeps up and find ourselves in a sudden dangerous situation. Few plan on driving in dense fog...it's one of those things that happens in low lying areas, or with changing weather.
I (as well as many others, I guess) are interested in learning how use it (...again, not why not to)
thanks!
 
Last edited:

Candleflame

Active Member
Mar 9, 2015
3,197
1,494
QLD, Australia
Seems like you're dead set intent on convincing people to not use fog lights, I get it.
Let's focus on answering the questions and the point of this thread, that is how to use it (not whether they should use it or not).
It's not for you, and you'll probably not use it, but there are others that are interested in learning, and there will be times when fog creeps up and find ourselves in a sudden dangerous situation. Few plan on driving in dense fog...it's one of those things that happens in low lying areas, or with changing weather.
I (as well as many others, I guess) are interested in learning how use it (...again, not why not to)
thanks!

i wrote a very long reply before on how to use it and what they are used for. if you dont drive in dense fog then you wont need the front fog light. The purpose of the front fog light is to avoid getting a reflection back from dense fog. what part of that do you not understand?
 

haroldo

Member
Apr 20, 2021
341
170
NJ
The purpose of the front fog light is to avoid getting a reflection back from dense fog
I think everyone knows that (if not, they shouldn't be driving)

Many in this thread (and probably quite a few others not participating) might be unaware of how to access them, independent of the low beams. The control panel, as well as the owners manual doesn't indicate, how to use them without the low beams
 

jrweiss98020

Tessa's Tesla
Jan 9, 2020
468
335
Edmonds, WA
For many years US "safety" regulations said factory-installed fog lights could only come on when the low beams are on. All my recent cars with factory-installed fog lights are/were set up this way. I wired up several of my older cars so I could independently control the fog lights. I'll have to check my M3 to see what it does...
 

Candleflame

Active Member
Mar 9, 2015
3,197
1,494
QLD, Australia
For many years US "safety" regulations said factory-installed fog lights could only come on when the low beams are on. All my recent cars with factory-installed fog lights are/were set up this way. I wired up several of my older cars so I could independently control the fog lights. I'll have to check my M3 to see what it does...
on the model 3 the foglights can be switched off on with the dipped beams
 

Gwgan

Almost a wagon
Aug 11, 2013
2,921
2,168
Maine
Actually, this isn't correct.
I experimented this morning in a parking lot near a glass building (so I could see what was happening).
If you set lights to Parking Lights, you can turn on the Fog Lights, without the headlights (low beams) being on.
Not sure if there's enough illumination to try driving in a fog, as it was only slightly foggy this morning, but it works.

Really appreciate the way Tesla makes it so easy, and intuitive, to figure out how to use things (/sarcasm)
Can confirm no fog lights without headlights on my car. Would like a check on a new refresh X and S. Anyone?
 

Gasaraki

Active Member
Oct 21, 2019
2,010
1,255
Syracuse, NY
Maybe cars in Australia are different but in the USA, if you leave the fog lights "on", they will turn on and off with the main low beam lights. You can't just run fog lights. They are not even bright enough to do anything...
 

haroldo

Member
Apr 20, 2021
341
170
NJ
You can't just run fog lights
This isn't correct.
If you set lights to Parking Lights, you can turn on the Fog Lights (without the headlights being on)
The fog lights will illuminate with the parking lights (which doesn't provide much illumination)
 

Gasaraki

Active Member
Oct 21, 2019
2,010
1,255
Syracuse, NY
This isn't correct.
If you set lights to Parking Lights, you can turn on the Fog Lights (without the headlights being on)
The fog lights will illuminate with the parking lights (which doesn't provide much illumination)
Are parking lights the intermediate lights on ICE cars? You can get 3 stages instead of 2 like I have now? Mine are just auto On and Off for the lights.
 

haroldo

Member
Apr 20, 2021
341
170
NJ
Parking lights (see attached image) would be considered the same as Daytime Running Lights (DRL) that are always on.
Mine are just auto On and Off for the lights.
You don't have Parking?
Probably the equivalent of the first twist on a conventional car's light stalk.
Set Exterior Lights to Parking, then turn on Front Fog (and you can party likes it's 1999!)

(screenshot grabbed from internet, so image shown is out of date)


img939413348-1518197089613.jpg
 
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Candleflame

Active Member
Mar 9, 2015
3,197
1,494
QLD, Australia
DRL switch = "Parking" here; the fog lights turn off.

DRL is the same as parking, in the 90s/2000s many older cars used the parking lights as DRLs which is where the concept came from i guess. So the DRL logo is the same as the parking light logo and they are interchangeable.

in european speced teslas switching to the parking lights does not turn off the fog lights.
 

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