how do I change the speed meter to MPH instead Km

Owners manual has all the setting instructions.

I have look in the owners manual and can not find how to change it. even call the dealer and done what they said, but will not change back.

Scroll through the media info display using the up / down buttons on the right bottom side of the steering wheel. When lines of text w appear telling you to press the RESET button (it's between the up/down buttons). This changes between mph and kph.

The owners manual is no help on this change. It does not address this anywhere that I could find in the book. I had my oil changed, and noticed that the MPH went to Kph. I will give this a try using the steering wheel control, instead of the Setting menu on the display.

Same happened to us (changed from mph to kph after an oil change), and we just tried the steering wheel control suggestion and it worked, thank you!