Auto alarm can be picked off. Urban legend?

Question

1. I got an email that warned that if you use your remote to lock your car in a parking lot someone nearby with a device to pick up the signal from the remote will be able to open your car after you leave. My users manual says the alarm generates millions of codes. True or urban legend?

Answer 1

well this is true that it creates a code to unlock your car, but un - soldering a connection inside the remote can make it unlock any car that the frequency comes into, i think it may be illegal to say which ones, but yea un soldering this connection will brake the code and force it to bypass any and all frequency codes around it, the same thing can be done with garage door openers

Answer 2

Our door to the garage get opened sometime by other neighbors pointing their clicker at our door at the right angle and they don't even know that they are doing it. A few mornings I'll open the door to the garage from the kitchen and yell at Dad saying you left the door the open when he did not as it was opened by a neighbor at a nearby townhouse opening their gargage door. I live in a group of townhouses.

Answer 3

this is only true if someone has invested the money in to a device that does this,because your remote always uses the same signal most of the time,but they would have to be within 50 feet of you when you do this and even then any interference from anything else would distort their signal they received,so the chances of this happening are slim to none,good luck.

Answer 4

That is totally true, it is the same as a garage door. It is good that your car has a random generating signal so it prevents people being able to get the codes from the car. I have not heard of an issue around me that people are using scanners to copy the code from the car to use it in a theft later but it is totally possible.

Answer 5

Back in the day, old school alarms generated the same code.  Like modern day garage door remotes.  You used a "Code Grabber."  Then after the person left you pushed the button on the code grabber and it disabled the alarm.

Now a days they generate a different code every time.  And the codes are like 20 digits, so it would take quite a while for it to go back to the code that got grabbed.

So as of 2008, it's an Urban Legend

Now they just stand by your car with a gun and take your keys from you when you show up.