Door ajar sound on highway

[bcw5]

While driving on my commute, I have heard a beeping sound that doesn't show on any of my displays. It lasts about four dings and then stops. It sounds like the door ajar sound. Anyone else hear this?

[Rusty]

While driving on my commute, I have heard a beeping sound that doesn't show on any of my displays. It lasts about four dings and then stops. It sounds like the door ajar sound. Anyone else hear this?

I've heard something similar, when somebody didn't have their seatbelt fastened. It's easy to miss the display, because it's up by the mirror.

[RevnRev]

Occasionally, if you have something in the passenger seat that is just on the edge of being heavy enough to set off the occupant sensor on the seat, under certain circumstances the car can think there is someone sitting there, and the dings accompany the "buckle your seatbelt" notification, as Rusty indicated. I've set it off with my iPad in a heavy-ish metal case once after a big bump.

[Mark Z]

And it's not just the weight, but the active electronics. When charging the iPhone or iPad, placing the device in just the right spot on the passenger seat will activate the sensor for the second passenger. It doesn't even have to touch the seat, you can hold it above the seat surface. While more difficult with the iPhone, the iPad activates the seat sensor much easier.

[WopOnTour]

And it's not just the weight, but the active electronics. When charging the iPhone or iPad, placing the device in just the right spot on the passenger seat will activate the sensor for the second passenger. It doesn't even have to touch the seat, you can hold it above the seat surface. While more difficult with the iPhone, the iPad activates the seat sensor much easier.

I guess that's possible. Gonna look into it a bit more. The seat sensor uses a mesh that creates a "capacitive field" to detect (and classify) the front seat occupant. Possibly the right kind of EM interference could affect it but it's built-in filtering should prevent that.
But the iPad emits "geek wave" radiation so..

WOT

[Clintonfitz]

And it's not just the weight, but the active electronics. When charging the iPhone or iPad, placing the device in just the right spot on the passenger seat will activate the sensor for the second passenger. It doesn't even have to touch the seat, you can hold it above the seat surface. While more difficult with the iPhone, the iPad activates the seat sensor much easier.

So would an iPad (original, not iPad 2) in the original iPad case (made by Apple, black) set off the seat sensor? Has anyone tried this, other than in a "heavy metal case"?

[bcw5]

So would an iPad (original, not iPad 2) in the original iPad case (made by Apple, black) set off the seat sensor? Has anyone tried this, other than in a "heavy metal case"?

This is what happened to me. BTW, my Volt is much cooler than the iPad that I have gotten two replacements for in the first 4 months I had it.