Speed Warning!

Having owned my Twizy now for a little over 12 months I have now purchased a 2016 Zoe to keep it company. So far all is good with the Zoe with the exception of the annoying speed warning from the Tomtom, how do I turn it off???

No smart comments please like “don’t speed” etc… I’ve looked through the menu but can’t find anywhere obvious to switch it off. Has anybody had better success then me??

Thanks, Mike