2019 Freightliner Day Cab Diff Lock

I have a 2019 Freightliner Day Cab.. maybe a Cascadia? I can't find anything on it online. Everything that comes up is a newer style of the 19's. Mine has a really old style look to it.

Anyways, I've got 2 switches in the truck that have the same symbol on them for the diff lock. They're both rocker switches, one stays in the up position when you press it and the other clicks when you push it up and then it goes back down. Both turn on a little light when activated and both produce an audible beep until switched off. Does anybody know the difference between these two? Is one fwd diff and the other rear diff?

 

Mine doesn't look anything like that lol.

Finally figured out what the truck is exactly. I'm looking online trying to find a matching layout of mine. It's a 2019 Freightliner M2 112

 

I won't be able to get it until Monday. Truck is a Freightliner M2 112 if that helps any. I'm looking around trying to find a picture of it.

 

That is the way a lot of newer trucks are set up. I've driven a few Freightliners with this setup.