Garmin 755t traffic

 

2 of my garmin model 755T's lost the traffic icon recently. Any one else have this issue? Could there be a file I'm missing on the system folder?

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jeff

Cable Issue?

Are you using the same Power\Traffic receiver cable on both 755T"s?

You may have a defective cable if the answer is yes.
The traffic information and subscriptions are stored in the receiver itself, not the 755T.

Are you certain the power outlet in the vehicle is working and charging the Nuvi's. Without power the traffic will not work. Since your profile indicates living in Chicago, I highly doubt this is a FM broadcast issue.

My Nuvi 2460LMT does have a file named TrafficProvider.XML, but ny Nuvi 660 does not have such a file. Again, on both these units the Traffic information is stored in the receiver, I don't believe your 755 would have that file.

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Nuvi 2460LMT 2 Units

I have 2 different power

I have 2 different power cables, Both the garmins stopped showing traffic about a wek ago. I ran the webupdater hoping that would fix the issue, but it did not.

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jeff

Your 755T problems

jeffpope0 wrote:

2 of my garmin model 755T's lost the traffic icon recently. Any one else have this issue? Could there be a file I'm missing on the system folder?

There are no special folders or files needed in a 755T required for it to work. Once subscriptions are activated in the GTM20 they will work on any traffic enabled GPS compatable with a GTM20.

I also have 2 755Ts and they have been working fine over the last couple days here in the Boston area. However, I have both TTN & Navteq and I haven't looked at the diagnostic screens to see which one (or both) happens to be receiving. Perhaps one of the services is actually out for some reason.

When you boot you 755T you will not get any traffic Icon until the GTM receives valid traffic date. Perhaps there is no dignal?

Is FREE Navteq the only subscription you have ?

A few ideas come to mind.

IF you have the old style GTM20 (the long cigar shaped power plug) there are red/yellow/green lights indicating status. Any activity? New style GTM doesn't have the lights.

You can go to the hidden diagnostice screens (hold battery icon location to the left of the clock for about 10 sec and hidden screens appear). You can step to the FM screen(s) and see if there is any receiver activity. The screen info is somewhat cryptic but there should be noticeable activity as it looks for a transmitting FM station. The FM screens will not show up if the GPS is not detecting the GTM20. For that matter, neither will your traffic subscription screen on the 755.

In your experiments have you tried a GTM/GPS combo with each of the mounts? You could have. a broken connection in one of the mounts.

When your GTM is hooked to the 755 does your map subscription screen show up and still indicate a valid subscription?

If you get to the FM diagnostice screens and there is no apparent receiver activity you can do a RESET or CLEAR (I forget what exactly it is called) from those screens and the FM station table will be cleared abd the receiver should start searching the FM band again and re-build it's tables.

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Frank, MA.

Power Cradle?

Frank508 wrote:

When you boot you 755T you will not get any traffic Icon until the GTM receives valid traffic date. Perhaps there is no signal?

In your experiments have you tried a GTM/GPS combo with each of the mounts? You could have. a broken connection in one of the mounts.

I believe you've pinpointed the issue.

It is highly unlikely both the 755T's GTM20's have lost their subscriptions. He cannot check the subscriptions since the Traffic icon does not appear. I believe he tried both the GTM20's.

I suspect the problem is the power cradle, most likely it is defective and he is using the same one when he checks both units. These power cradles are prone to failure if the user is not careful when connecting the cable and stress is put on the cable, it can damage the connections on the cradle.

To check, try another power mount assuming you have two, if you don't have two I suggest you purchase a replacement.

You can get a replacement for 20.00 with free shipping.
http://www.amazon.com/Cradle-Holder-Compatible-Garmin-Nuvi/d...

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Nuvi 2460LMT 2 Units

Traffic reception

Have you gone into the hidden setup screens?

It's been awhile since I've done that, but I do remember that there is one that displays the traffic stations that are being received.

Maybe a little research online can supply the nearest FM station that supplies the service. If you can locate where the transmitter tower is, you can drive close to it and see if the GPS knows it's there.

Also, the GPS will not display any traffic info if there is nothing to report.

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Metricman Nuvi 660, GTM-20 Traffic Receiver Nuvi 3597 GTM-60 Traffic Receiver Williamsburg, VA

Hidden Diagnostic Screen

metricman wrote:

Have you gone into the hidden setup screens?

It's been awhile since I've done that, but I do remember that there is one that displays the traffic stations that are being received.

Maybe a little research online can supply the nearest FM station that supplies the service. If you can locate where the transmitter tower is, you can drive close to it and see if the GPS knows it's there.

Also, the GPS will not display any traffic info if there is nothing to report.

jeffpope0 (OP) states he has lost the Traffic Icon, therefore lost traffic completely. He lives in Chicago so there are many stations broadcasting traffic and you can bet there is traffic there.

You can clear the FM table by following steps below.
Credit goes to member DorkusNimrod for providing the procedure.

1. From the map screen, press the speed indicator to go to the Trip Computer page.

2. Press and hold the round speedo dial for ~7 seconds

3. Press Next to advance to the GTM Info page.
4. Press Reset
This clears the FM table of the available scanned stations that it uses to select from when locking onto a transmitting FM station. This initiates a re-scan of the stations which may pick up newly available stations in the area you're in.

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Nuvi 2460LMT 2 Units