Question about Garmin GPS Devices

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The sound on my Garmin Nuvi 760 does not work anymore, and it will not charge and hold the charge when removed from the car power adapter. I have had it about 10 months.

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  • 2,124 Answers

Please read the article I wrote on this topic.

http://www.fixya.com/support/r1094734-no_sound_or_garbled_sound_nuvi_series

Also, if your unit will not charge, make sure the charger is ok. Have you tried both car and AC charger? Do not try to charge via the USB as many USB ports can not supply enough current to charge as fast as the wall or car charger.

If your chargers are okay, then I would suspect a defective battery... I have seen this happen before and I have had to replace batteries on several units.

- Jim

Posted on Nov 06, 2008

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1 Answer

My Nuvi 760 doesn't hold a charge and keeps shutting off when charging in car outlet. Thanks for any help you can give me.


Check the car charger cigarette lighter adapter plug first, at the silver tip end of plug it has a fuse, Unscrew the silver tip CAREFULLY its spring loaded and check fuse...

Nov 06, 2010 | Garmin nuvi 750 GPS Receiver

1 Answer

The power off


  1. Make sure you are sliding the power button all the way to the left.
    • If the unit does not respond, it may be that the battery is not charged.
  2. Connect the nuvi to a power source such as the USB cable and your computer.
  3. Reset the device, if the problem persists, by sliding the power button to the left and holding it in that position for 10 seconds
    • This resets the unit and prompts it to power on.
  4. Contact Garmin Support if this does not solve your problem at www.garmin.com

Jul 04, 2010 | Garmin Nuvi 760 Car GPS Receiver

1 Answer

My Garmin Nuvi 760 screen goes black after 8-9 seconds. I have replaced the fuse in the charge cord. Someone recommended that I remove the battery and turn the power button on for ten seconds to reset the...


Do not open the nuvi, the garmin site recommends the following method instead:

  1. Make sure you are sliding the power button all the way to the left.
    • If the unit does not respond, it may be that the battery is not charged.
  2. Connect the nuvi to a power source such as the USB cable and your computer.
  3. Reset the device, if the problem persists, by sliding the power button to the left and holding it in that position for 10 seconds
    • This resets the unit and prompts it to power on
If this fails to solve the problem, contact "SUPPORT" at www.garmin.com.

Please rate this reply if helpful - good luck.

Jun 20, 2010 | Garmin Nuvi 760 Car GPS Receiver

1 Answer

Nuvi 760 will not take charge


I don't know which of the three ways you're trying to charge - car cradle, via USB cable to a computer or via accessory AC adapter. An 18 month old 760 should still have a good battery.

If you are using your car cradle to charge consistently, use one of the other methods and allow the 760 to charge for 8 hours. Use of the car cradle can cause the 760 to stop taking a charge after a while, and switching to one of the other methods should "refresh" the internal battery. Since the AC adapter wasn't included in the box, the USB cable method is likely your only other choice. While connected to your computer, you should download & update the 760's firmware. It's fast and free - and could solve other potential issues. Get the WebUpdater software direct from Garmin.

It is also possible that the fuse in the cigar lighter plug has opened. Disassemble the the plug to check for and replace a blown fuse.

If unable to get the 760 to accept a charge, you might need to replace the battery. There are several sources for batteries - but a free call to Garmin Support should be your first move.

Please rate this reply and good luck!

Jun 10, 2010 | Garmin Nuvi 760 Car GPS Receiver

2 Answers

My Garmin will not power up.


The batteries may be depleted. Try charging via USB cable connected to a computer if cigarette lighter method does not work. When connected to a computer, the device should power on but no maps will be displayed. Disconnecting from the computer should cause the 760 to reboot - if the batteries are charged.

After charging, slide and hold the power switch for 5 to 10 seconds to power on.

Get *free* help directly from Garmin Customer Support:

Monday - Thursday: 8 AM - 6 PM, Friday 8 AM - 5 PM Central Time (closed holidays)
US: 913-397-8200
US Toll Free: 1-800-800-1020
Canada: 1-866-429-9296

Sep 14, 2009 | Garmin Nuvi 760 Handheld GPS Receiver

1 Answer

Garmin 760 won't power up and is hot.


Have you tried sliding the power switch to the left and holding for at least 30 seconds?


- Jim

Aug 26, 2009 | Garmin Nuvi 760 Handheld GPS Receiver

1 Answer

Garmin 760 wont come on


Try holding the power slide to the left and holding it there for 8 seconds. If that doesn't work, try charging it via your PC & USB cable. If that doesn't work, try a mains charger if you have one (I had to do this with mine). Good luck!

Dec 31, 2008 | Garmin Nuvi 760 Handheld GPS Receiver

3 Answers

Garmin Nuvi 760


Sounds like you both have a battery problem. I experienced a similar problem when trying to charge via the USB-cable connected to my computer.
Ended up buying an original charger (expensive) and the charging went smooth.
The car charger should in any case work fine, so probably your battery is not very healthy.

Try holding your finger on the battery symbol for about 10 sec. The unit will then switch to a technical page. There you can observe the battery and charging voltage. When I plug in my computer USB-cable, I read around 4,4V and that is not sufficient for charging my battery.
When connected to the original charger, this voltage rises to about 5V which gives a nice charge. When unplugging charger, the unit displays the battery capacity. If the charging voltage is OK, but battery capacity drops quickly after you unplug charger cable, the battery is probably bad. (Of course you have to charge is for some time) I think around 4V battery voltage give 100% capacity. 3,9V gives about 90% capacity.
This will not solve your problem, but can give you an idea about what is wrong.
Good luck.

Oct 28, 2008 | Garmin Nuvi 760 Handheld GPS Receiver

5 Answers

Garmin nuvi won't turn on


folks, the garmins have an on-board battery that needs to be powered up (at least occasionally) via the usb port - like from your computer. just using the dc car power cord does nothing for this battery. i've had this exact same problem on both my 760 and 780 nuvi units. fixed it using the usb charge. seems to run down differently for all the various nuvi models. my regular charge will hold for 7 hours on my old 660, my 760 and 780 work about 5 hours. my 'power up' failed on the 660 after 10 months with no internal battery charge, but the 7xx models only took about 5-6 months to 'fail.' hope this helps. jack b :-) in midland, tx usa

Jan 13, 2008 | Garmin Nuvi 660 GPS Receiver

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