Hi chaps

I have an 08 Terios auto and have spent a lot of time reading the manual...but call me thick...I am still confused about the Centre Diff Lock etc. It also keeps referring to a traction control switch and a downhill assist switch....but my car doesn't appear to have the latter two even though the manual refers to them with automatic shifts etc.

Can someone explain what options I have in my automatic Terios in terms of snow/ice and steep hills etc.
It might as well be written in Latin....oh it is...well there you go !!

Here's hoping someone can translate.

Ta ever so
xx