How to Unlock the Garmin Bluechart

Written by j. johnson
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How to Unlock the Garmin Bluechart
BlueChart can help you navigate marine areas. (boat image by jim from

BlueChart is a version of the MapSource software offered by Garmin. MapSource is the tool that allows you to more effectively manage the maps on your Garmin GPS devices. BlueChart is a MapSource product that helps you navigate marine areas. It offers a variety of features to the consumer. For example, with BlueChart, you can easily update the available maps on your Garmin GPS device, obtain maps for obscure areas and enable the way-point function of your GPS device. Before you can access a specific map in BlueChart, you need to unlock the data for that particular map.

Skill level:


  1. 1

    Find the unlock code for the map data you wish to unlock in BlueChart. A list of codes can be found on a piece of paper that came with your Garmin GPS device. When you purchase the device, you also purchase a number of map codes you can use to unlock the software.

  2. 2

    Visit the "Manage Maps" page of the Garmin website at if you want to purchase additional unlock codes for your BlueChart software. You need to either log in to your Garmin account or create one by clicking "Create new account" if you don't already have one before you can purchase additional unlock codes.

  3. 3

    Open your MapSource program to unlock a map in BlueChart. Click on "Utilities."

  4. 4

    Click on "Manage Map Products" and type in the unlock code you found in your product packaging or purchased from Garmin. This will effectively unlock your maps in BlueChart.

Tips and warnings

  • Contact Garmin if you have any technical issues while using BlueChart. You can contact a customer service representative at 1-800-800-1020.

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