Question about Garmin nuvi 250W GPS Receiver

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I have a Garmin 780. It is not muted. I tried

I have a Garmin 780. It is not muted. I tried turning up the volume level. It still would not work. I took a trip this weekend and the garmine gave perfect direction. However, my front seat passenger had to tell me when to make my turns. It was a frustrating trip. I am disappointed. I am going to take another trip next week. Please respond as soon as possible.

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  • 66 Answers

You could try reloading the operating system software. Go to and download the latest software update.
That may remedy your issue.

Posted on Aug 03, 2010


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No voice prompt when time to turn direction

Make sure volume is up and not muted. Make sure that you have a voice selected in the voice menu. Under settings, make sure that you have guidance checked. When you press the buttons on the screen, do you hear beeps? If not, your speaker could be bad. More sound troubleshooting here:

SHARCNET USA Out of Warranty GPS Digital Camera Repair

Nov 13, 2015 | Garmin nuvi 780 GPS

1 Answer

Optiplix 780 soun problem

What kind of sound problem? Tell us what is happening?

Do you have the speakers plugged in the right port (light green port)? Have you checked to make sure the speakers are turned on and the volume is up? Have you looked at your Audio/Sound Properties to make sure the volume is up and the sound is not muted? Have you checked the device manager to make sure none of your sound/audio devices have a problem?

If you have a megaphone at the bottom right near the time Doubloe Click on it and make sure nothing is muted and volume is turned up. You can also get to the Audio Sound properties in the Control Panel, click Start/Control Panel and look for Audio/Sound. You can get there by clicking Start/Programs/Accessories/Entertainment/Volume Control.

Apr 07, 2012 | Dell OptiPlex 780 MT Desktop Computer...

1 Answer

No voice insruction

Check that you haven't accidentally set the volume control to "mute". Usually this is a small checkbox below the volume slider and if checked there will be no sound regardless of the volume setting.

Oct 31, 2009 | Garmin nuvi 780 GPS

1 Answer

The audio on our Nuvi 780 just quit working the maps still load and runs fine, just cannot hear anything.


did you check in the system settings, to see if the volume has been decreased or muted ?
Failing this, the speaker has stopped working, and needs replacing, unless theres a seperate external speaker socket you could use, with a headphone or external speaker.

Mike @ Compurepair.

Jun 11, 2009 | Garmin nuvi 780 GPS

1 Answer

No voice prompts on my new nuvi 750- volume level not muted.

I had the same problem after I had my Nuvi 750 for a few months.  The voice just stopped.  I called Garmin and they replaced it under warranty.

Feb 11, 2009 | Garmin nuvi 750 GPS Receiver

1 Answer

No voice prompts on my new nuvi 750- volume level not muted.

Got this from a another guy who said he had the same problem
Update your gps on garmin website, download latest firware version. Worked for me

Feb 07, 2009 | Garmin nuvi 750 GPS Receiver

1 Answer

Garmin 780


Touch tools > settings > language > voice.

Voice- changes the language for voice promts.
Languages noted with a persons name are (tts)
text to speak voices.

which have an extensive vocabulary and pronounce
the street names as you approach turns.

The pre-recoreded voices (those without a persons name)
have a limited vocabulary and (do not speak names of locations or streets)

Text language- change all on-screen text to the selected language,
changing the text language does not change the language of user entered data
or map data, such as street names.

Keyboard- select the keyboard for your language,
you can also change the keyboard language mode from any keyboard
by touching the mode button

Adjusting the volume levels
From the "menu" page touch "volume"
to adjust the volume.
To adjust the volume levels for the media player
and the navigation prompts,
please click.

Tools > settings > Volume > Restore
Restore will, restore to origional volume levels.

You should be good now


Jan 23, 2009 | Garmin nuvi 780 GPS

1 Answer

Our Garmin Nuvi 780 is new and worked fine the first 2 times we used it. However, it will not give us the voice instructions now and we can't find instructions to reset or correct the problem. The online...

You can check "settings", then look for the picture of "lips". This is the language area. I always just select American English. You can set whatever you like. Also, check your volume setting. Just touch the "speaker" on the main screen and up will come the volume. Increase to a level you like. I use 90 percent.

Jan 01, 2009 | Garmin nuvi 780 GPS

5 Answers

No voice prompts on my new nuvi 750- volume level not muted.

This will work--go to Tools, Settings, Language and then select a Language that has TTS following it--this is the text to speech choice. Choose English TTS Jill if you like to hear the woman.

Mike H Dublin, oh

Dec 21, 2008 | Garmin nuvi 250W GPS Receiver

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