Car alarm set off by mobile phone

Technical Area Electrics & ICE
1
  1. My model of MX-5 is: _mk3 ventura
  2. I’m based near: North west
  3. I’m looking for technical help or recommendations on: __If i leave my phone in the car it sets the alarm off, any suggestions?
2

This is well documented. I would avoid leaving your phone in the car. If you have to then switch it off.

3

Thanks for swift reply, didn’t know so common? Does turning phone off if left in car stop it alarming then?

4

Yeah, its the signal to the phone which interferes with the sensor, many (myself included) have suffered this issue!

Think of it as a positive that no other car has - its an alarm to warn you that you forgot your phone in your car!

1 Like
5

Think I read that your phone signal is pick up by a microwave device under the center consol. I think this device is part of the car alarm system.
You could try your phone in airplane mode.

6

As Coconino said, this is well known. Safer just to pick your phone up and take it with you, otherwise the “beep beep beep” will just keep on firing away.

7

Yep, the album module is just underneath the rear centre cubby hole… Where I put my phone if I’m using CarPlay!

Also useful to note, this also happens if you have a mobile WiFi dongle plugged in via usb, which I had when I had a Chinese android head unit…!