Manual sparse on details. I've noticed that with headlights in default auto mode I can turn on fog lights and sometimes they will come on and sometimes not. Additionally sometimes they will turn off while in auto mode and stay off meaning I can't turn them back on unless I put headlights in manual mode. Other times they will switch off in auto but them come back on later on their own. I'm wondering if, like the other aspects of the auto headlight system they are somewhat controlled by the camera sensors detecting the environment outside such as fog or snow. If in auto and I turn them off they do stay off but while on in auto they seem to switch off or on somewhat at will. Anyone else's truck behave like this?

 

This is really odd behavior. On my '19, once I turn on the fog lights, they are on when the truck is running low beam but turn off when the auto-headlights switch on the high beams. I assumed the '21/22 operated the same except when they are turned off, they are supposed to function as turn lights. In that mode, when taking a corner, the fog light on the side that the vehicle is turning toward will activate to illuminate the road on that side.
I'm interested to see what other '21/'22 owners are experiencing as I'm trying to learn all the vehicle's quirks before taking delivery of a '22.

 

When they are off they do function as intended for extra illumination into a turn with the left or right coming on as you describe. That part thankfully functions properly.

 

If you truck has the active headlights and you are in Auto mode, the tuck manages the amount of light based on inputs from sensors. If your driving lights are on and it ramps up the light to highest intensity as it sees no other light sources in front of you. I am pretty sure when it does this, it turns down the fog/driving lights.

I learned this from reading the manual on this because I though it had auto diming headlights and I was driving around blinding everyone as if you manually put the high beams on it comes out of auto mode. That is when I found that it is in auto mode it will manage the light output in a linear fashion. You can see it in action as you drive, it is cool because it doesn't have a on/off transition as it is more of a dimmer type transition.

 

I know what you are describing and I am pretty certain what is occurring is happening outside the auto transition to high beam but I will keep an eye on that aspect just to be doubly sure. Thanks.

 

What he was describing seems to be something more sophisticated than just the low beam to high beam transition. It sounded like the lights all work together in auto mode to establish a certain level of lighting and if the truck senses that it needs to add in the fog lights to reach that level, it automatically brings them into play.

 

It's the glare free lighting if you use Forscan enable Bambi mode and they will stop turning on and off that's what I did it was driving me crazy

 

Many thanks to those who replied. It does appear to just be part of the auto system. This evening we had some heavy snow so I put the fogs on as part of auto. Because of the system sensing the snow the anti glare and high beam stayed off and the fogs stayed on. Pretty cool system.

 

I have actually found the feature awesome.