Question about Garmin GPSMAP 545s GPS Receiver

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Garmin 545s will not power up. Power is getting to the gps(tested Cable). It will not power up when i first install (I remove it after every use. then it will power up while we are out boating .

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Posted on Jan 02, 2017

SOURCE: Garmin 230 GPS

I have the same problem...did you find a solution...


Posted on Mar 02, 2008

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SOURCE: garmin gps 12 wont turn on.

Sorry to hear of the dead units. Are you using the correct power cable with a small hole in the centre of the plug? The GPS 12 is strictly limited to 7 volts only. The accessory cigarette lighter cable for this model has a circuit inside to drop the voltage from 12 to 7. Cannot be fixed. There would have been a plastic peg in the back of the GPS socket to prevent anything but the correct voltage Garmin cable being plugged in. Unfortunately these pegs are easily broken off. Yes, they are a good little unit even though well on in years. The next model up - the 12XL - can accept a wide voltage range and does not have the plastic peg.

All the best, Tony at KiwiGPS.

Posted on Apr 25, 2009

  • 1 Answer

SOURCE: Power to Lowrance GPS


Yes you have to hook up the red wires together to the + and both black ones to the negative, otherwise the antenna won't be supply in current , and don't forget to insert behind the red wire a fuse and a switch to avoid to discharge your battery .


Posted on Apr 26, 2009

  • 1 Answer

SOURCE: GPS is not getting power on the motorcyclen mount.

Quite possibly the pins that provides power to your Zumo through the mount have corroded after getting wet when the Zumo has been removed. Two ways to prevent this in future, remove the power supply to the mount by unplugging the lead either at the mount or at the battery (or put a switch in) or/and use a product to repel water from the pins on the mount. I remove the mount completely from the bike when not in use which has solved the verdigris problems I was getting.

Posted on Sep 11, 2009

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1 Answer

My garmin 545s does not turn on

My Garmin 545s would not power up. I took the unit to West Marine, where they had the correct cable to hook it up and test it. The unit immediately powered up and I purchased a $22 cable and installed it. Easiest test and fix I could come up with. Really cheap fix.

Sep 25, 2013 | Garmin GPSMAP 545s GPS Receiver


How to Download your Garmin GPSMAP 545 / 545s Users Guide


Have you lost your User's Manual for your Garmin GPSMAP 545 or 545s?
Would you like a digital copy for easy searching of terms and quick reference?

The GPSMAP 545 owner's manual is available from Garmin here.

I hope that helps.

on Jan 31, 2010 | 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.

on Jan 31, 2010 | Garmin GPSMAP 545s GPS Receiver

1 Answer


Easiest way is to take the unit to West Marine (or wherever they can do it), hook it to their cable, and see what happens. If it operates correctly, a cable is about $22 and in stock. Cheap fix and easy cable install. Call ahead to make sure cable is in stock.

Aug 24, 2012 | Garmin GPSMAP 545s GPS Receiver

1 Answer

Garmin 545s lost gps signal/reads gps error on satilitte page


Lost Satellite Reception - the unit has lost satellite signals. Check
antenna connections or try moving to a location with a clear view of
the sky.

Jan 11, 2012 | Garmin GPSMAP 545s GPS Receiver

1 Answer

Once I power up the unit it freezes to the opening screen with Garmin in the middle. Have tunred on and off several times and it freezes every time

I have had a similar problem with a Tomtom - at some stage the maps became corrupted. 
The solution with the Tomtom was to plug it in to the computer via usb cable and re-load the maps. I believe Garmin have similar computer software available, but you may be able to find more information and relevant updates on the Garmin page for your item:
hope this helps.

Mar 14, 2011 | Garmin GPSMAP 545s GPS Receiver

2 Answers


If there is no power what so ever I would consider the internal connection to the circuit board these are quite fragile....I have repaired this on the TomTom in the past where the usb connects to the board inside the gps.Is this the incar gps?

Aug 10, 2010 | Garmin GPSMAP 545s GPS Receiver

1 Answer


Upgrading the system software of your GPSMAP 545s will increase its accuracy. Instructions for downloading and installing the update are here.

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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