Tip & How-To about Garmin GPSMAP 545s GPS Receiver

How to Upgrade and Fix your Garmin GPSMAP 545s System Software






Does your Garmin GPSMAP 545s freeze up?
Is the screen stuck, or do you loose satellite coverage?

I recommend upgrading the system software of your Garmin 545s. There may not be physical damage to your unit, and it may be completely revitalized by replacing the GPSMAP software with the latest version 5.30 (as of January 7, 2010).

  1. Click on "Download" and choose to save the file to your computer.
  2. Choose a location where you can easily find the file, such as the 'My Documents' folder or 'C:\'.
  3. Once the download is complete, go to the location where you saved the file.
  4. Double-click on the downloaded file. This will automatically extract the files to C:\Garmin and run a program to transfer the software update to an SD card.
  5. Load the SD card into your GPSMAP 545s and turn it on to replace the system software of your unit.
I hope that helps.

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1 Answer

I lose satellite coverage on a fairly regular basis. The 545s is mounted in the open.I have only used it twice.


Please review this page for instructions on how to upgrade your units system software. There have been many upgrades for this unit, increasing its accuracy and dependability.

  1. Click on "Download" and choose to save the file to your computer.
  2. Choose a location where you can easily find the file, such as the 'My Documents' folder or 'C:\'.
  3. Once the download is complete, go to the location where you saved the file.
  4. Double-click on the downloaded file. This will automatically extract the files to C:\Garmin and run a program to transfer the software update to an SD card.
  5. Load the SD card into your GPSMAP 545s and turn it on to replace the system software of your unit.
I hope that helps.

Aug 06, 2009 | Garmin GPSMAP 545s GPS Receiver

1 Answer

i tranfert bluechart from my PC using mapsource to


I recommend upgrading your system software to the latest version (5.30),
follow this link for directions and the file's location.

  1. Click on "Download" and choose to save the file to your computer.
  2. Choose a location where you can easily find the file, such as the 'My Documents' folder or 'C:\'.
  3. Once the download is complete, go to the location where you saved the file.
  4. Double-click on the downloaded file. This will automatically extract the files to C:\Garmin and run a program to transfer the software update to an SD card.
  5. Load the SD card into your GPSMAP 545s and turn it on to replace the system software of your unit.
I hope that helps.

Jul 04, 2009 | Garmin GPSMAP 545s GPS Receiver

1 Answer

position off


I recommend upgrading the system software of your GPSMAP 545s to the latest 5.30 version. Find directions and the download link here.

  1. Click on "Download" and choose to save the file to your computer.
  2. Choose a location where you can easily find the file, such as the 'My Documents' folder or 'C:\'.
  3. Once the download is complete, go to the location where you saved the file.
  4. Double-click on the downloaded file. This will automatically extract the files to C:\Garmin and run a program to transfer the software update to an SD card.
  5. Load the SD card into your GPSMAP 545s and turn it on to replace the system software of your unit.
I hope that helps.

Jun 18, 2009 | Garmin GPSMAP 545s GPS Receiver

1 Answer

GPS operation freeze up


Upgrading the system software of your GPSMAP 545s will most likely fix your freezing up problem.

I hope that helps.

May 31, 2009 | Garmin GPSMAP 545s GPS Receiver

1 Answer

locating satellite


Initialization time has been greatly reduced with newer system software upgrade for the Garmin GPSMAP 545s. Get your system software upgrade here.

I hope that helps.

Aug 30, 2007 | Garmin GPSMAP 545s GPS Receiver

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