Question about Garmin StreetPilot c340 GPS Receiver

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Garmin c340 Devive wiil not turn on have replaced fuse in cord.

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  • rocky16 Dec 28, 2007

    device will not turn on. I'm fairly confident the battery is charged. Is there a reset button?

  • Anonymous Feb 26, 2008

    I have charged the unit but it would not power up.



2 Answers

Open up the front border of the device, start off by pushing it out right below the Garmin brand name. Once the frame is removed you'll see a reset button.

Press it, you're done!

Posted on Dec 30, 2007

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Will the device turn on without the cord (on battery power)? If not then the cord is not the issue most likely. To make sure, you can use the USB cable and try charging via that hooked up to your computer (make sure computer is on). Give it sometime to charge (30mins) and see if you can get it to turn on. If this doesn't work, I think the next best thing is to contact Garmin support.

Posted on Dec 27, 2007


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I ran the battery dead on my c340 GPS Now

You will have to open up you unit, and replacing the battery, you can get them from Garmin.

May 08, 2010 | Garmin StreetPilot c340 GPS Receiver

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Garmin Street pilot C340 has always worked. This morning it did not turn on. I relpaced the fuse in cord. Any other ideas?

Try charging it from the WALL charger. The battery inside the unit may not be too great. Try it - over night from the WALL charge -not the PC charger. 8de415c.jpg

May 04, 2010 | Garmin StreetPilot c340 GPS Receiver

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Need a car charger cord for my c340 garmin

You may purchase this accessory directly from Garmin or at Radio Shack.

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Feb 19, 2010 | Garmin StreetPilot c340 GPS Receiver

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Garmin c340 Street Pilot. When I plug it into car lighter it used to go on automatically. Now I have to push the start button. It comes on briefly, then gets lines on it and blacks out. I have tried it in...

Check to see if your cord has a fuse in it and replace it if it has blown. Sounds like it's not charging and the GPS is automatically shutting off because of a dead battery. You may have to purchase a new cord. Perhaps you can try a cord from one a friend has first? Or maybe carry your GPS into a store that sells them and has demo units you can unplug and plug your in to see if it stays on.

Feb 11, 2010 | Garmin StreetPilot c340 GPS Receiver

1 Answer

Why does my c340 keep losing satellite reception

Hello there:
please follow these instruction and this should help if not let me know and i willcontinue to get you more information for you
  1. Step 1 Calibrate the screen of the Garmin StreetPilot C340. If the touch screen does not seem to respond when you hit it with your finger or a stylus, you may need to calibrate it. To do this, turn the unit off and then hold down the "Power" key for approximately one minute. You will see a calibration screen come up that will recalibrate the GPS2_bing.gif unit.
  2. Step 2 Reset the Garmin StreetPilot C340. If your GPS unit is not responding or is stuck on a particular screen, it may need to be reset in order to operate. To reset, remove the face plate of the unit by gently prying it off. Locate the "Reset" button under the face plate and press down in order to restart the device.
  3. Step 3 Change the fuse of the Garmin StreetPilot C340. If the fuse blows on the GPS, you will need to make a replacement using an ACG/3AG 2 amp fuse. Unscrew the adapter cord at the end and remove the fuse found there. Put in the new fuse to see if this returns function to the unit.
  4. Step 4 Update the software for your Garmin StreetPilot C340. If the GPS is not providing you with correct directional information, you may need to update the software or download new maps onto the device. Connect the Garmin StreetPilot C340 with the USB cord to your PC and log on the Garmin website for available updates.

Jan 15, 2010 | Garmin StreetPilot c340 GPS Receiver

1 Answer

Garmin C340 will not take a charge.

The internal battery needs replacement. You can change it yourself if you are comfortable with soldering, and are mechanically inclined.
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"Replace battery Garmin c330" You'll need a small Philips head screwdriver to open the case, and to remove the battery holder. It is tricky to put the antenna back, so be careful.

Jul 20, 2009 | Garmin StreetPilot C330 GPS Receiver

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Cannot turn the power on.

I have bot this Garmn c340 at year ago. I couldnt turn my Garmin c340 GPS , even i have pu on charger more than 4 hours. Please let me know what should i do?

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Garmin C340 Street Pilot

I had the same problem. Found out that the fuse had blown in the power cord. I bought a new fuse from radio shack and have not had the low battery since.

Mar 25, 2009 | Garmin StreetPilot c340 GPS Receiver

2 Answers

My Garmin C340 is dead!!!!

I had the same problem on a trip. Required two fixes and once I did this the unit worked fine.
1. Replace the fuse in the car adapter (reason it wasn't charging when I used it in the car).
2. See the users manual on page 31 regarding resetting your C340.

Jul 21, 2008 | Garmin StreetPilot c340 GPS Receiver

2 Answers

C340 Garmin GPS

Have you tried a hardware RESET? The button is hidden behind the front panel, which snaps off by a fingernail slot located directly under the GARMIN logo on the front panel.

* Use caution removing and reinstalling the front panel... it's somewhat fragile... wiggle it a little to get it off.

Press where it says "Press to Reset", hold for a second or two. Charge the unit with the car cord or USB cable, then try to turn it on again.

Once you can get the unit to (hopefully) turn ON, you should run all updates (there may be several!) using Garmin's Webupdater. (Connect to computer with USB cable first.)

Hope this helps!!

Jun 11, 2008 | Garmin StreetPilot c340 GPS Receiver

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