3G network shutdown impact on SYNC system
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From: Colorado
3G network shutdown impact on SYNC system
Wondering what systems will be affected with the upcoming shutdown of the 3G networks. Some research states that you will not be able to connect your phone with your truck, so the assumption would be that hands free would not work also. I do not find much info on what Ford is planning or not planning - they have not said much that I can find. It would be nice to know if it will affect the other controls that are connected to the SYNC system like HVAC controls, radio, satellite radio, etc.... I really don't want or need to pay for an aftermarket system that would require a subscription - I already pay more than enough just for cell phone service but do like the benefits of hands-free calling/talking.
Looking to see what the more knowledgeable members may know or have heard.
Looking to see what the more knowledgeable members may know or have heard.
5th Wheeling
Joined: Sep 2020
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From: Massachusetts
The 3G shutdown is for cellular service. Your cell phone connects to your SYNC system radio by Bluetooth between the radio and the phone. It has nothing to do with any form of cellular transmission.
Laughing Gas
Joined: Nov 2010
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Yup, it will continue to function and remain every bit as mediocre as it does today since its only connection with the outside world is via BT or WiFi.
If this was a GM forum and you were asking about OnStar, this could be a different discussion.
If this was a GM forum and you were asking about OnStar, this could be a different discussion.
Laughing Gas
Joined: Nov 2010
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This is an incorrect statement. Remote start, keyless entry and TPMS do not operate on cellular frequencies in the US; they operate off 315MHz. Even if they did, they would still continue to function because the transmitter (your key fob) would continue to broadcast on the same frequencies it did prior to cellular carriers deprecating the technology. Carriers still using third generation technology operate in bands from 800-850MHz and 1900MHz.
Fleet Mechanic
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From: Colorado
Good information. It makes no sense that the cellular signal would have anything to do with any system functions. I was not sure how they tie them together (intertwine might be a better word) that might keep other functions from working. If they work separately about the only thing to lose would be the vehicle communicating with home (Ford), and any related apps. I know you can get system updates, so I expect that to go away. I updated my maps to a newer version and it came on a SD card, so that appears to be a standalone system.
What I have read is that it will (can) effect all years up to and including 2021 if the factory was still using the 3G for their system.
What I have read is that it will (can) effect all years up to and including 2021 if the factory was still using the 3G for their system.
4wd High
Joined: Apr 2015
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This is an incorrect statement. Remote start, keyless entry and TPMS do not operate on cellular frequencies in the US; they operate off 315MHz. Even if they did, they would still continue to function because the transmitter (your key fob) would continue to broadcast on the same frequencies it did prior to cellular carriers deprecating the technology. Carriers still using third generation technology operate in bands from 800-850MHz and 1900MHz.
4wd High
Joined: Apr 2015
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These systems absolutely use the 3g cellular spectrum. I literally use my phone for these systems, and they literally use cell service. That is why Ford issued 21b09.
4wd High
Joined: Apr 2015
Posts: 9
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This is an incorrect statement. Remote start, keyless entry and TPMS do not operate on cellular frequencies in the US; they operate off 315MHz. Even if they did, they would still continue to function because the transmitter (your key fob) would continue to broadcast on the same frequencies it did prior to cellular carriers deprecating the technology. Carriers still using third generation technology operate in bands from 800-850MHz and 1900MHz.
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Don't remember what all years this system was available for, here's a thread discussing it and possible replacements for it. https://www.ford-trucks.com/forums/1...placement.html
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From: Colorado
Great info and links. I got lost for a few hours in that rabbit hole, but a lot of good info there. It does look like there are some viable solutions out there.
I tried to research this subject before posting and did not find anything - just using the wrong keywords. I figured there was already discussion on this topic.
I tried to research this subject before posting and did not find anything - just using the wrong keywords. I figured there was already discussion on this topic.