Hello. I have an Icom IC-M1EURO V Marine VHF radio. I cannot get it to switch from International

Question

I have an Icom IC-M1EURO V Marine VHF radio. I cannot get it to switch from International to US, which is apparently done by pressing the 'DIAL' switch. The unit serial number is 08600. Also note, when the setup program is in use, the screen shows INT/US/CAN for international, US and Canada - I just can't seem to switch between them - and nowhere in the manual does it indicate that the Canadian channels are even available.