Unlocking car with cell phone?

[Thehonger8]

I have heard some stories that you can unlock your car doors with your cell phone. Someone from another place uses the remote keyless entry, and press the unlock button, then you put your phone like up to the car and it will suppose to unlock the door.

Has anyone tried this? Is this a myth?

[gpomp]

apparently it works...
http://www.autoblog.com/2007/06/01/video-autoblog-shows-how-to-unlock-your-car-with-a-cell-phone/

[99teg]

yes it does work! it saved me from gettin fired for being late for work

[TNationFTW]

yeah i've never seen it in person though

[trev0006]

I have tried this many times, but failed.

[mo_money2supe]

I believe the only reason the method worked in the video was not 'cause the cell phones were transmitting the signal, it's 'cause when the remote was placed near the distant cell phone, that cell phone acted as an amplified antenna for the remote; thus, extending the range of the remote. Notice how they never tried it from several blocks down, but within plain sight of the car? It's the same principle as if you need extra range from your remote and your car is still within sight but the remote's range isn't far enough, you place the remote on your chin and use your body as an external antenna.

[DelSoln]

It's definitely not a myth. I can do this since I have GPS tracking in my car. A lot more options as well.

[three.eighteen.]

Originally posted by mo_money2supe
I believe the only reason the method worked in the video was not 'cause the cell phones were transmitting the signal, it's 'cause when the remote was placed near the distant cell phone, that cell phone acted as an amplified antenna for the remote; thus, extending the range of the remote. Notice how they never tried it from several blocks down, but within plain sight of the car? It's the same principle as if you need extra range from your remote and your car is still within sight but the remote's range isn't far enough, you place the remote on your chin and use your body as an external antenna.

uh, why your chin?

[BlackArcher101]

What a load of hooey. Cell phones transmit audio... a keyless entry or gps signal is not audio and the radio waves they use will not transfer through a cell phone.

[infamous]

Originally posted by three.eighteen.


uh, why your chin?


why the chin? i personally don't know, but i know that it works. true story: when i was working at hyatt infiniti, i was trying to figure out which g35 keys i had in my hand. went and stood next to a window, and tried to use the remote to find which car. didn't work. put the keys up to my chin, and bam....it works everytime. how? don't know. why? don't know. but it works.

[blinkme_210]

The theory behind it is that your body changes the frequency of the remote, and detunes it down to the receiver's frequency. Ask an EE guy, he'll tell you.