Suzuki Vitara on board computer IS A/C and ANTITHEFT explained. Also MPG FUEL settings - Brezza 

A and B will only show your miles driven, not the MPG

There are devices from AliExpress that plug into the OBD port to lock the doors at a set speed but I have not used them. Ask the question on the Vitara forum as I and many others are always happy to help facebook.com/groups/966364726770307

It's always there, just start the car and press in the right button and it scrolls through to it :-)

@@flaxvert ahh thanks but it doesnt show up for me, it just shows an empty screen :-( , mine is in km setting can it be affecting that?

Nope, which is unfortunate. I have replaced my stereo with an aftermarket android unit so I can have a digital speed display on that instead.

Push the right stalk inwards a few times and you can cycle through miles remaining, fuel economy, mpg and so on.

At 70mph GPS speed I get 67mpg in my 1.6 diesel