4×4 icon on dash not lighting up

Went riding last weekend and noticed that the 4×4 icon wasn’t on when I was in 4wd(4wd does work)….the icon does work because when I turn the atv ignition on it lights up…what would cause this… smh
2006 polaris magnum 330 4×4

Also got to try out my new superwinch Terra 35…its awesome…I even pulled out my buddies rhino.