Remote key fob malfunction
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Hotshot
Joined: Jul 2005
Posts: 13,834
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From: Middle Tn.
Remote key fob malfunction
2015 F-350. Used to be able to remote start and lock/unlock from the house out to the driveway. Now I have to be within ten feet with no obstructions. Does this with both FOBs and both have fresh batteries in them. Any ideas? Factory remote with no mods.
Tuned
Joined: Jun 2005
Posts: 290
Likes: 44
I would try new batteries (name brand) from another pack. Worth trying a $5 fix first. Hopefully you just got a bad batch of batteries in the first pack. I’ve had this happen with batteries I bought at the DG. Best of luck
More Turbo
Joined: Aug 2021
Posts: 714
Likes: 336
I run across vehicle gate operators weekly with the same problem. Radio interference. How many wireless networks does your device detect? I have seen instances where the remote has to be less than 1 foot from the antenna to function. Does this only happen at your home, or everywhere? Radio frequencys between 300 to 318 mghz seem to be affected the most. Now it turns out 5g networks are negatively affecting airports.
Fleet Mechanic
Joined: Jul 2008
Posts: 1,937
Likes: 1,221
From: Southern Crescent
I'll put this in both threads...
Take the truck out to a remote location away from civilization and electrical noise. If it works well there, but not at the house, then you have a radio interference issue. Could be WiFi, a leaky computer, just about anything. But likely something that's on all the time.
If you're still down to 10 ft out in nowhere, then you have a fob or truck issue. Makes you wonder if the new batteries are as good as the old ones were?
Take the truck out to a remote location away from civilization and electrical noise. If it works well there, but not at the house, then you have a radio interference issue. Could be WiFi, a leaky computer, just about anything. But likely something that's on all the time.
If you're still down to 10 ft out in nowhere, then you have a fob or truck issue. Makes you wonder if the new batteries are as good as the old ones were?
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Mountain Pass
Joined: Aug 2021
Posts: 115
Likes: 82
I'll put this in both threads...
Take the truck out to a remote location away from civilization and electrical noise. If it works well there, but not at the house, then you have a radio interference issue. Could be WiFi, a leaky computer, just about anything. But likely something that's on all the time.
If you're still down to 10 ft out in nowhere, then you have a fob or truck issue. Makes you wonder if the new batteries are as good as the old ones were?
Take the truck out to a remote location away from civilization and electrical noise. If it works well there, but not at the house, then you have a radio interference issue. Could be WiFi, a leaky computer, just about anything. But likely something that's on all the time.
If you're still down to 10 ft out in nowhere, then you have a fob or truck issue. Makes you wonder if the new batteries are as good as the old ones were?
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Logistics Pro
Joined: Feb 2005
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From: SEVA
^^^ TRUE! There's so much EMI at my office that remote start won't work when I'm standing right next to the truck. Often have to position the fob in the "dead battery" pocket deep in the console to start the truck, and regularly get "No active key" dashboard message while driving through the parking lot. No problem anywhere else.
Thread Starter
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Hotshot
Joined: Jul 2005
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Likes: 25
From: Middle Tn.
Yes, years ago. FOB just started doing this a few months ago. I think it's something with the truck.
Fleet Mechanic
Joined: May 2011
Posts: 1,866
Likes: 84
From: Rainier OR
There is a convenience store that I often stop at, my fob won't even unlock the doors even if just a few inches away.
There is a transmitter for a power company meter right there, I do believe that is the problem.
So I will also say there is a good chance of some type of radio interference at your house, try the fobs in different locations and see what it does.
There is a transmitter for a power company meter right there, I do believe that is the problem.
So I will also say there is a good chance of some type of radio interference at your house, try the fobs in different locations and see what it does.
Fleet Mechanic
Joined: Jul 2008
Posts: 1,937
Likes: 1,221
From: Southern Crescent
After that I guess the next thing I would do is try to find the trucks antenna for this thing. Make sure it's in good shape and none of it's connections have corroded or worked loose. After that I got nothing...