What's this do?
 

Hi everyone. I've recently just bought a mazda 6 ts2. There's a button with a roll switch on the right of the steering wheel right next to the Dsc button and head light dimmer switch. I'm wanting to know what this is please? It has a symbol that slightly looks like the speedometer and rev meter on it

Thanks

You need to post a photo.

Photo
 

Apologies. It's the button on the left.

I found button using image search but I'll be damned if I can find anything that references it. Does it toggle the trip odometer?

LHS will be display light dimmer, then the DSC & the RHS is headlight beam height adjuster.