Is this normal ? I was driving on -4 in auto with some snow mode but mostly auto and suddenly this pop up in my evic " 4wd temporary unavailable overheated" on my way home when I reach home and turn it off after 15mins I try and it's gone..
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Never happened to me in 3 years. I would only consider it normal if the system overheated for some reason. It seems like it just reset itself when you turned it off. By then the error fault cleared itself because the initial problem was gone. The "4wd temporary unavailable overheated" is a safety off for the system.
I am a bit confused by the "I was driving on -4 in auto with some snow mode but mostly auto " statement.
I would understand that as you switching between auto and snow mode. I do not understand - 4? Maybe limiting your top gear to 4?
Now in my opinion, switching between Auto and snow is a meaningless exercise. Staying in Auto will give you 4WD on demand automatically as conditions dictate. You will not even notice the switch usually unless the rpm jumps a little higher. It can and will move between the 2 modes seamlessly.
4WD Snow gives you a fixed proportional power to each axle that is best for snow.
Now with that said, I will drive in snow mode if there is snow on the road. If there is no snow on the road I use Auto. I let auto handle the task of 4wd or not.
That is my day to day setting. Its rare that I change modes. Auto is FWD by default which will maximize mpg.
Whether continuously jumping modes could have caused the problem you had, that is the question. I would guess that might be it. Also if you were running higher RPM's that will generate more heat in the gear box. Air flow cools it.
Just leave it in one mode or the other.
My advice is leave it in Auto unless continuous conditions dictate one of the other modes.