Upgrade maps came with map of us. I know roads chg. how do I update the maps and how often is nessary

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Dec 17, 2013 - How to update satnav maps: TomTom, Garmin and Navman charges ... purchasing, you are entitled to download it and update your device for free. ... when i bought my Garmin, there were roads both new and old that were not ...

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If it was a new road it may be that it was not yet added to the map. If it was an older road it may have been left out of the map by mistake. You can report map errors to Navteq, who make the maps Garmin use, at http://mapreporter.navteq.com/?app.basemap=jsl
I know that may not be much use to you for now but it will be corrected in a later version of the map.

Basically you have to pay Garmin for new maps for your device. The do offer a lifetime map plan for some so you could possibly do that.Then when new maps are released you will only have to hook the device up to a computer and update the maps.

Maps for most GPS devices are updated several times a year. Your map is from 2010 and should be updated. You can go to the garmin site and pay to download and install upgraded maps or do a google search for map upgrades and you'll find some services offering lifetime upgrades for a few dollars more than the Garmin one time upgrade. I did this and have had no problems updating the maps on my Garmin Nuvi 250.

You can update the maps using either Garmin or other third party maps. The accuracy will depend on how old the mapping data was that is used to create the map. So you want to find out if the map in that area is recently updated. You may also find that a regional map may show the details in some areas where a larger map won't.

To upgrade using Garmin you just go to garmins website

http://www8.garmin.com/updatemaps/

You may find the map update is free or you may update for a fee or get a lifetime update subscription. The gps is hooked up through the usb cable and will download and instal the updates. It's painless (sort of ;-]) and quick.

This is from tomtom.com
Hope this helps looks like you haveto pay for map updates after 30 days, but I am not positive.


Application updates
We recommend always having the latest version of the TomTom application installed on your navigation device. This ensures you can use the latest features and improvements available for your device.

To check if a new version is available, connect your device to TomTom HOME and then click Update my device. For more details see www.tomtom.com/6133.
Latest Map Guarantee
Get one free map update if a new map version is released within 30 days of buying a new device.
Start driving with the latest map - guaranteed!
See What is the latest map guarantee.
Map Share™
Get daily map changes from the TomTom community.
In between map releases, you can make corrections to your map – such as road closures, and points of interest – through Map Share™ technology.
See What is TomTom Map Share.
Map Update Service™
TomTom regularly releases brand new maps that incorporate the latest changes to the road network.
With our Map Update Service you get every new release of your map over a 12-month period, from the equivalent of just €9.95 per quarter. That’s four new maps a year.
See the TomTom Map Update Service.
Single map
If you only want to update your map once you can buy a single map.
Buy a single map.

Unfortunately Nextar GPS systems come with only USA/Canada or UKmaps , maps for other regions are not available, and there are also not much upgrade.
Maps from third party usually do not work on this unit.
The only way to know if a download is available is simply calling them at their toll free numbers, they do not make available online downloads:

Technical Support
1-888-849-0846

Technical Support (For U.K. Only)
0800-047-0126

The good thing is that upgrades and map are both free, while on other models you have to pay for maps.

Give them a call to unlock a download to latest map.


Regards.

See the following options to update maps on your TomTom:

Latest Map Guarantee
Get one free map update if a new map version is released within 30 days of buying a new device.
Start driving with the latest map - guaranteed!

See What is the latest map guarantee.

Map Share™
Get daily map changes from the TomTom community.
In between map releases, you can make corrections to your map – such as road closures, and points of interest – through Map Share™ technology.

See What is TomTom Map Share.

Map Update Service™
TomTom regularly releases brand new maps that incorporate the latest changes to the road network.

With our Map Update Service you get every new release of your map over a 12-month period, from the equivalent of just €9.95 per quarter. That’s four new maps a year.

See the TomTom Map Update Service.

type free map update in google

Garmin puts out map updates on a regular basis. You must purchase these. The GPS comes loaded with maps that are current as of the date of production of the unit. It cannot "know" when new roads are paved and new subdivision are created without being "told" via map updates. The unit knows where it is in relation to the maps loaded on it by receiving signals from the GPS satellites in orbit. If things change, the maps must be changed in order for the unit to give you correct directions.