Re: Can car alarm be set off by cell phone?

["alarman" <alarman2000@xxxxxxxxx>]

"DanK" <djk104@xxxxxxxxxxx> wrote in message
news:1148301869.197031.19770@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> We have a 2004 Toyota with a factory installed car alarm.  The alarm
> goes off randomly.  Sometimes a few times a day, some days not at all.
> No physical disturbance is setting it off (it does it even sitting in
> our closed garage).  However, we noticed that it seems to happen when
> my daughter's cell phone is in the car.  I am still trying to confirm
> this relationship (by having the phone in there, or not having it in
> there, and seeing when the alarm goes off).
>
> Could the cell phone be setting off the alarm?  It's nothing obvious,
> like the phone being on "vibrate" mode, and receiving a call.  Could
> the phone be sending a radio signal that is at a frequency that sets
> off the alarm (like the frequency of the emergency button on the key
> pad)?
>
> We had it at the Toyota dealer, but they didn't find anything (this was
> before I made the cellphone connection).
>
> Thanks for any help!

When I had a Nextel phone, I remember that it would cause noise on other
devices like computers, radios, etc. This would occur whenever the phone was
in proximity with these devices, and not just when placing or receiving
calls.
js