Sensitive Passenger seat???
 

Wanted to post this a while ago, had anyone noticed that the passenger is very sensitive when it comes to turning the airbag on/off and sending when someone is there and not buckled in?

I ask because sometimes my iPhone slides off my center console and lands in the seat and that alone will trigger the passenger seatbelt alarm. I've tested it with objects of similar or slightly more weight than the iPhone and it doesn't do it.

Is it the heat or electric capacity of the iPhone? Has anyone else noticed this?

capacitance / electrical field

not weight / heat related.

I've had a camelback set it off. chucked it in the back seat.

Really? It's so strange. I thought my car was bugging out. I've tested it with numerous things. So it senses electrical fields? I thought it was weight related or is that the airbag off function. Because it senses when a baby seat is up front and turns off the passenger airbag. I'm assuming it knows that due to weight?

Nope it's capacitive, well documented.

http://www.ft86club.com/forums/showthread.php?t=7410
Edit 2: This first thread is really good, there's a note about the technology and how it can be set off by devices in your manual.

http://www.ft86club.com/forums/showthread.php?t=54476
http://www.ft86club.com/forums/showthread.php?t=39103
http://www.ft86club.com/forums/showthread.php?t=28673
http://www.ft86club.com/forums/showthread.php?t=19714

Edit: Here's a paper about utilizing signal conditioning to reduce erroneous readings from laptops and cell phones, but since it's dated 2010 I doubt it's made it too far towards consumer use.

http://ieeexplore.ieee.org/xpl/login...mber%3D5439846

Most cars use electric capacitance measurements to establish whether a person is sitting on a seat or not and therefore turn the airbags off . Most cell phones interfere with this and make the alarm go off.

Take it to the dealer and ask them to turn off the sound. Fixed.