How do i program tomtom back to the US

All the instructions for updating your device is on the tomtom website so just follow the simple instructions to update it. If you mean you dont have a map because its been deleted then you will have to purchase a new one. You must use tomtoms program on your computer to manage the device. Either tomtom home or the web based tomtom application depending on your model. See the website for full details.

Hi,
I don know from where you loged in,

Please contract to nearest computer shop,or can collect an chalan ,can see detail about service center behind the chalan or bill or cash momo.

Hope this helps,

Your TomTom One has been set to a foreigh language: you need to change the default back to any version of English (US or UK) that is available:
It is normally done under 'Change preference' (look for Spanner image Icon) -> Scroll right Arrow until 'Change language' (look for Flags image Icon) -> Select English -> Select an English Voice
Just look for the graphic when you bring the menu up as it will be in whatever language!
Hope it helps: let me know how you go.

what i can do to change my tomtom country?

You do it with your TomTom Home program.
Link.
http://us.support.tomtom.com/cgi-bin/tomtom_us.cfg/php/enduser/std_adp.php?p_faqid=5122&p_created=1150044449&p_sid=saWBCsmj&prod_lvl1=&prod_lvl2=&cat_lvl1=&p_accessibility=0&p_redirect=&p_lva=&p_sp=cF9zcmNoPTEmcF9zb3J0X2J5PSZwX2dyaWRzb3J0PSZwX3Jvd19jbnQ9MTkzLDE5MyZwX3Byb2RzPSZwX2NhdHM9JnBfcHY9JnBfY3Y9JnBfcGFnZT0xJnBfc2VhcmNoX3RleHQ9VE9NVE9NIEhPTUUgRE9XTkxPQUQ*&p_li=&p_topview=1#

Here is also the link for your manual.
http://www.tomtom.com/support/support.php?ID=3&Language=4

I had the same problem, before realising that text-to-speech on the TomTom XL on'y works if you've selected a *computer-generated" voice - and not all of them are. "Samantha/English-US" is computer-generated, for example, but "Tim/English-UK" is not (it's a recorded voice). When choosing from options in the "Change voice" menu option, check the top-right hand corner to tell whether a voice is computer-generated or not. Hope this helps.

http://www.tomtom.com/support/index.php?Language=1&query=language&FID=4532

choose again your right map and than start a navigation by use adress / street and number, than it works fine again :)

How do I change to USA? My Tom Tom is on Tamunming GU, whow do I change to the USA?

in the change prefference menu

there are options to change 'home' & 'owner' settings.