I brought my car into the dealer to get some service done and they had to disconnect my battery in the process. When I got my car back, the dash display had changed. The 'instantaneous gas mileage' and 'remaining distance' displays on either side of the speedometer used to display digits. It now shows a vertical gauge. See attached photos. I asked the mechanic who worked on the car how to change it back, but he didn't know. I went through all the menu settings and can't figure it out later. Anybody have any idea on how to change this?

This is how it used to be.

This is how it is now.

 

Try here:
https://owners-manual.mazda.com/gen/.../05020500.html

 

Yep- very simple to do.