How do you change a viper speedo from miles to km?

[averagesleder]

I know there is a way to switch the speedo from miles to km but I can't find the thread with the answer. Something about a button on the back if I recall.

So how do you do it?

 

[stein700sx]

I do beleive that you press and hold reset for ten seconds.

 

[modsrx]

yesssssss