2019 GTX Limited depth finder

[Sbartolo]

Picked up a new GTX limited 230. It has the depth finder but it's way off. In 5' of water it shows 42'. Is there a way to re-calibrate the unit??
TIA!!

 

[Ajfauth]

Picked up a new GTX limited 230. It has the depth finder but it's way off. In 5' of water it shows 42'. Is there a way to re-calibrate the unit??
TIA!!

It's actually showing 4.2 it's just really hard to see the period