Unknown indicator light 2006 Freightliner M2 business class

So i had this white light come on earlier today. I haven’t been able to find any diagrams or videos or anything like this in my owners manual. Closest thing i could find was that its an indicator light for the allison trans. I know these white lights are supposed to come on before starting the truck but this individual white light came on after about 4 hrs of driving through snow. Anyone have an idea of what it might be? I cant get an obd2 scanner until Monday so any feedback will be appreciated

This is the light thats on when running



This is the pattern of the lights when i turn the key to start it

 

Yea they’re just a solid white light with no text or symbols

 

Its very possible. It hasn’t happened since that day so im sure it was just bugging out for whatever reason. Thanks for your input