Doors Magically unlock???

I would be for stashing a hidden key in case they start to lock when you just step out without the keys.

Had a weird one happen a few years back. On a trip from Ontario, Canada to Arizona we took the I-80 to I-76 to I-70 route. After we passed through Denver, we saw and decided to check out the Buffalo Bill grave site just up I-70 as you head into the mountains west of there. When we parked our older Roadtrek, on a Chevy Express 3500 van, and tried to use the factory fobs to lock/unlock the van's doors, they wouldn't work. No lock tumbler clicks, nothing. We had to use the keys to physically lock/unlock the doors while we were stopped. We figured it must have been the iron or other metal ores in the mountains somehow blocking/suppressing or otherwise interfering with the transmit/receive signals from the fobs. Once we got back on the road again, they were fine. Remote control resumed.

First there are only SO many key codes. Since I do not know the length of the "Word" I do not know how many codes but one common word size is 256 and another is 256 times that (65,535 is the number of usable codes)

Someone else near you has the same code.

Your body control module has a fault. Its not necessarliy a bad part, most likely a software flash at any Ford dealer will fix it for about a $100 bill.

If the unlocking is a concern for security or when you are away, you could pull the fuse for the electric locks, But you do lose the convenience.

When mine started doing that, I put on a tinfoil hat and it stopped. :B....Dennis

Wonder if the fob gets flaky when the battery starts to age? Might talk to a locksmith - if he confirms then have him replace the batteries (doesn't cost much).

Walk around the park with your FOB and keep hitting the horn button. See if someone else's horn starts up. Could also just be a natural phenomenon emitting the same signal too.

When we lived in town, our garage door would mysteriously open.

Thanks. But it is an older rig

Driving around in the suburbs as a kid it was fun to see how many garage doors you could open. Walking thru a parking lot pushing the button on the key fob I haven't unlocked another car in a few years, I think they have the chance of finding a duplicate to yours cut down pretty slim. I would call ford.