How to unlock a car door from remote place

This trick is not working for all car door security locking system. Here is the guide that claims capable to unlock the car door from remote site via the cellphone .

1.Provided you have a spare car key left at home, then call home with your cellphone, get someone to press the unlock button on your spare car key, and hold it near to his/her cellphone.

2.At the same time, hold your cellphone near to the car, about 1 foot away from the car. Note, I am not sure that you have to turn on the speaker phone, or just normal mode will do.

That's it. Your car doors are either opened/unlocked now or remain locked. If you want to, try it few times to check if it is really works with your car security locking system, or it is just a rumour.

If this trick is working , it is definitely good to remember. In this case, you don't have to break the car windows, paid someone to unlock the car door, or waiting for someone to drive all the way from home sending you the spare car key, etc. Just a phone call, and get the car doors opened from a remote place . Easy ...ain't it ?