Generaldukes

Hello to all, new member here with a Crossland diesel

I have 2021 crossland and the amber tyre pressure low warning light keeps on illuminating and I have tried pressure ranging from 33psi up to 36 now but it still illustrates, is there a way to alter to system as I think it is on full load setting and I would like to change to light or eco but cannot find where to do this on the car settings, I have re initialised the system many times but it still shows up the fault, thanks in advance of any help