[Oofious Maximus]

I've been trying to figure out the proper way to use the 4wd in my toop, I currently have the auto hubs on it, however almost at random times I get the 4wd light and I can shift between 4h and 2h and it runs like a champ however other times I will shift into 4h and nothing happens and no light, even after reversing and etc, I think I'm just not doing something correctly and the hubs or something won't unlock. Any insight would be greatly appreciated I'm kind of new to all this,

 

[Enemigo]

Let's start with what year Trooper you have.

 

[Oofious Maximus]

96 auto

 

[Enemigo]

Is it a push button, or a shifter to get into 4wd?

 

[Oofious Maximus]

Shifter