F.o.r.d Keyfobs opening other cars.

[davegsm82]

Anyone ever heard of the supposedly secure keyfobs on modern cars being able to open each other?

I was asked the question yesterday by my brother, because I'm "car" and "electronics" savvy.

Basically, twice now, my brother has walked out of the house, pressed the unlock button on his keyfob and subsequently both his AND my mum's cars have unlocked. The first time he simply assumed my mum had accidentally pressed the button in her pocket or handbag, however the second time she was asleep upstairs and the keys were on the kitchen bench.

Both cars are modern F.o.r.d's, 2012 I think, one is a Focus and the other a Focus-Max (essentially the same vehicle).

Although I'm no expert, I have a fair grasp on rolling code cryptography and as such, I realise that this should technically NEVER happen within our lifetimes (if at all, ever) due to the numbers involved.

Anyone else ever experience something similar?

[moggymorgan]

Used to work in London as a service engineer. At one regular site when I locked my transit it opened a focus in the car park. When I opened my van the focus really locked.happened every time.

[moggymorgan]

Used to work in London as a service engineer. At one regular site when I locked my TRIFLE it opened a focus in the car park. When I opened my van the focus really locked.happened every time.

Transit.van

[moggymorgan]

It won't let me say the Ford Van name has had.