Question about Garmin GPSMAP 178C Sounder GPS Receiver

1 Answer

My garmin gps 178c sounder will not acquire satellites and I see there is a fix how do I load it

Posted by on

  • Robert Phillips Oct 10, 2010

    All I have is a bluechart card and slot to put that in...Do I use this card OR do I need a special card

  • Robert Phillips Oct 11, 2010

    Found on garmin website to power off unit, power on amd hold page button until i agree highlighted then press enter...It erases all old data for satellites and acquires new data...takes about 20 minutes



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 4,472 Answers

I assume your talking about the marine updater. All the steps are located here:
If you have any other questions let me know.
thank you,

Posted on Oct 10, 2010

  • Lee A.
    Lee A. Oct 11, 2010

    No you need a data card. Most likely you will want to consider ordering one of the prepared cards from garmin. Here is the steps on the page I gave you that say you can't use the bluechart card
    What do I need to get started?

    * IBM-compatible PC running Windows 2000 or Windows XP operating system, and an Internet connection.
    * Garmin USB card reader with drivers installed.
    * 16 MB (or larger) data card. (Cards used for data backups or programming of MapSource products can be used, but all existing information on the card will be erased. Please note: Pre-programmed BlueChart cards cannot be used for software updates.)
    You may want to contact garmin directly about this problem:
    Thank you,

  • Lee A.
    Lee A. Oct 11, 2010

    Yes a reset is always the first thing to try, I assumed you had already attempted that because your original question was asking how to load a "fix". I am glad to hear you got it working.
    Thanks again,



1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Why does my screen blink all the time on my 178c sounder

check your power connection, if that is still good your unit may be dying

Jul 05, 2014 | Garmin GPSMAP 178C Sounder GPS Receiver

1 Answer

Garmin GPSMAP 178C not boot

can we download india map?if tell me how to download and install the map in my device Gm4300?

Nov 20, 2013 | Garmin GPSMAP 178C Sounder GPS Receiver

1 Answer

My Garmin GPSMAP 178C screen backlight failed

Backlight problem: Remove the display, remove the light tube from behind the LCD. Buy a led panel from Ebay for around $5 and install it behind the LCD under the drfusing layers. Run the wires out to a 12 VDC source and there you have it.

Jul 13, 2010 | Garmin GPSMAP 178C Sounder GPS Receiver

1 Answer

GPSMAP 178C Sounder GPS Receiver: My 178C will not stay powered up. I just replaced ...

I had the same problem with mine. It is caused by a crimped wire on the internal harness inside the machine. I opened it up and discovered that when originally put together 3 of the wires from the plug were crimped. One was broken off. The only way to fix it is to open it up, restrip the wires place a piece shrink wrap on before you solder it back and then make the shrink wrap flush with the back of the plug and heat her up. And, Voila... no more intermittent operation. Hope this helps? John

May 18, 2010 | Garmin GPSMAP 178C Sounder GPS Receiver

1 Answer

Garmin 178c won't find satellites

It would appear that your Garmin has no clue as to where it is on the planet. I think a trip to the owner's manual:

might be your best bet to help initialize your unit. The info on how to graphically initialize your Garmin can be found on page 5.

Hope this is helpful.
Good Luck!

May 04, 2010 | Garmin GPSMAP 178C Sounder GPS Receiver

1 Answer

Garmin 178c turns off on it's own.


Sounds very much like the wiring plug connections in the back, always overlooked but so important that connections are tight and contacting.

Jul 06, 2009 | Garmin GPSMAP 178C GPS Receiver

2 Answers

I have a Garmin 178c map/sounder and it will not load up my BlueChart Data Card. I bought a new card, thinking that would cure my problem, but it didn't. I would love to get your input what steps to take...

I have the same problem. Did you ever figure out why it was not loading? There are no software adjustments to be made. Just plug in the card and wait. It says its reading the card, but never goes any further. Let it 'read the card' for hours with no luck. Help!!!

May 16, 2009 | Garmin GPSMAP 178C GPS Receiver

Not finding what you are looking for?
Garmin GPSMAP 178C Sounder GPS Receiver Logo

Related Topics:

1,268 people viewed this question

Ask a Question

Usually answered in minutes!

Top Garmin GPS Experts


Level 3 Expert

2130 Answers


Level 3 Expert

79077 Answers


Level 3 Expert

3289 Answers

Are you a Garmin GPS Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides