Tip & How-To about GPS

How to update your Garmin Satnav maps

To update your garmin satnav map you must have your satnav registered. If it's already registered skip to paragraph 2 below.

1. To Register your Garmin Satnav

  • Connecty our satnav to your computer and go to www.garmin.com
  • Select your country
  • Click on Register your garmin product
  • Follow the prompts
Note you will be asked to create a username and password. Write them down and keep them safe as you'll need them again anytime you want to update your maps

2. To update your maps

  • Connect your satnav to your computer and go to www.garmin.com
  • Click on myGarmin and log in
  • Click on myMaps.
  • If there's an update available it will be shown beside the name of your map.
  • Click on Get Update and follow the prompts.
Note map files are large so you'll need a broadband connection to download them. If you don't have broadband you'll have an option to buy the update on DVD.

  1. If The Map Is Too Large To Install To Your Satnav
    When you go to download the map by default it tries to download it to the satnav i.e. not the SD/Mini SD card. You need to change this. When the website recognises the satnav follow the prompts. It will give you 3 options for the download destination.
    • Download to satnav,
    • Download to Computer and Satnav or
    • Download to computer.
    As the website is updated, from time to time, the method of selecting the download destination changes. Sometimes it shows up as a drop box with a drop-down arrow showing your satnav name. Click the drop-down arrow and select the option to download the map to your computer. Sometimes it shows the 3 options as text headings with tick boxes beside them and you get to tick the option you want. Whichever way it shows up select the option to download the map to your computer. This will install it on your computer's hard drive.

  2. After it's downloaded the map should begin to install automatically. (If not double click on it and it will). It should be allowed to install to your satnav first as Garmin will not allow it to install to your SD/Mini SD card unless it's first partly installed to the satnav. This is so they can ensure that it's installed to the correct satnav.

  3. To Install The Full Map To Your SD/Mini SD Card
    To install the map to your SD/Mini SD card, insert the card into the card slot of your satnav and connect it to the computer. Click the windows start button on your computer. Then click the GARMIN progam and then MAPINSTALL. This runs the map installation program. When the install program finds your satnav and you get the option to install the map there again by default. Click on the drop-down arrow, where it shows your satnav as the destination, and select the drive letter of the SD/Mini SD card. This will be different to the drive letter for your satnav. The map will then be installed to your SD/Mini SD card.

  4. Problems With Older Nuvi Satnavs Reading Maps On 4 Gb Or Higher SD Cards
    When you install a map to an SD card older nuvi satnavs can have difficulty getting the satnav to read it. It will install to it without problem but when you try to operate the satnav then it cannot load the map and will close down the satnav unless you remove the SD card. The reason for this is that 4 Gb and higher cards are SDHC which operate differently from SD. To solve this problem you should use a class 2 SDHC card, which is the slowest type available. You can identify the class by the small figure on the card. It will be either 2, 4, 6, 8, or 10. Before you install the map format the card as described below. Also use webinstaller to check that you have the latest version of operating software on your satnav.

  5. Format the SD card with "Panasonic SD Formatter" available from http://panasonic.jp/support/global/cs/sd/download/sd_formatter20.html rather than the standard windows format function. Select the fast format option and be sure you have selected the drive letter of your SDHC card as it will format your hard drive or indeed your satnav just as easily if you select one of them by mistake.

  6. To update your software or check that you have the latest version, you can download webupdater from http://www8.garmin.com/support/collection.jsp?product=999-99999-27
    Connect your satnav to the computer and run the program. It will search for any updates to your software.
Class 2 SDHC cards are harder to find in shops today as they are being replaced by the faster classes. They are however still easily available on ebay if you can't find one in the shops.

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i have bought a second hand garmin, and the owner gave me the manual and free US navigation map. Recently he also provided me the 25 digit unlock code, but I cannot register or unlock maps, cos when i try to register an account it is always say invalid user id or password. How to fix this?

The unlock code he gave you must be the map unlock code. IF it is you can unlock the map without registering. Details of how to unlock your map are at http://www.fixya.com/support/r6197735-no_detailed_maps_found_support_routing
There's more information there than you'll need so skip to the paragraph on unlocking the map.

If the previous owner deletes your satnav from his garmin account you should then be able to register it.
Mar 21, 2011 • GPS

No Detailed Maps Found That Support Routing

Hi, thanks for the above info. My issue is different (I think). I've just purchased a new Zumo 660. I have loaded mapsource and followed all the instructions. I have all the necessary codes as well. When I turn on Mapsource it states "Locked Maps Detected". When I go to unlock through the online method nothing changes to the locked status. when i go to the unlock regions window, there are no maps listed. Whereas on the Map Product Window it lists the product details i.e. City Navigator ... I'm at a loss what the issue is?? Many thanks Alan
Sep 28, 2010 • GPS

I have relocated from south africa to New Zealand. I now want to update my Garmin nuvi 200 with the NZ maps

1. To get a NZ map for your satnav;
  • Connect your satnav to your computer with the mini USB lead.
  • Go to www.garmin.com and if you've registered your satnav click on the myGarmin tab at the top of the screen and log in using your username and password. If you haven't registered follow the instructions in para 2 below to register and then come back to here to continue.
  • When you're logged in click on the myMaps tab at the top of the screen. There you'll see the map that's on your satnav
  • On the left side of the screen click on "Shop for more maps"
  • Click on "View additional maps for this product"
  • Browse down to "City Navigator Australia and NZ" and click it.
  • Follow the prompts to buy and download the map
If you need help to download or install the map have a look at this link before buying the map http://www.fixya.com/support/r5628920-update_garmin_satnav_maps

2. To register your satnav, if you haven't already done so;
  • Connect your satnav to your computer with the mini USB lead
  • Go to www.garmin.com and select your country from the drop-down menu
  • Click on the myGarmin tab at the top of the screen
  • Click on "Register your garmin product"
  • Click on "Automotive" and follow the prompts.
You'll be asked to create a username and password. Keep them safe as you'll need them again if you need to update your maps.

Good luck with the move and I hope you enjoy Newzealand.


The maps may just be unselected rather than gone. To select them press the spanner icon (Tools) then press Maps. At the bottom of the screen press Map Info and see if there's a map there. There should be a tick at the side of the map name. If there's not press the map name and the tick should appear. The map will then be selected and should be ok.
If you need to get a new map or map update connect your satnav to your computer. Go to www.garmin.com. If you have already registered your satnav click on myGarmin and then on myMaps. (Details on how to register are below) Your map should be shown there and if there's an update available click on GET UPDATE to download the updated map. If there's no update and you need to buy a new one click on Shop For More Maps and select the ones you want. Follow the prompts.

Go to www.garmin.com and select your country. Click on myGarmin and then on Register Your Garmin Product. You'll be asked to create a username and password. Keep them safe as you'll need them anytime you want to update your maps.

I am trying to update my garmin 255w and not getting anywhere. I have no idea what I am doing wrong. Help

To update the maps you connect the satnav to your computer. If you haven't registered your satnav already you need to do so first. Go to www.garmin.com. Select your country and then click on myGarmin. If your satnav is already registered skip to the next paragraph. If it's not registered click on Register Your Garmin Product. When registering you'll be asked to create a username and password. Write them down and keep them safe as you'll need them anytime you update your maps.

When you have registered your satnav, or if it's already registered, Click on myGarmin, enter your username and password and log in. Click on myMaps. If there's a map update available it will say so beside the map name. Click on Get Update and follow the prompts.

To update the software, connect your satnav to your computer, download and install webupdater from http://www8.garmin.com/support/collection.jsp?product=999-99999-27 if you haven't already done so. When it's installed it will search for updates. Follow the prompts.
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