2 things: I've been driving several times and a chime comes on. There's no light blinking, my seatbelt is on and the doors are closed. It's come on when I leaned a certain way in my seat, like if you were trying to see an address out the window to the right.
Today, I was on a curvy road, seated normally and it starts to go off again.

is this the weight sensor for the airbag? and if so, is anyone else having this happen? I called the dealer and am going to go in on Thurs.

oh, i'm 6'5" and 210lbs so it's not a size/weight issue.

2nd thing is a rattle that comes from the back somewhere around 65-75 on the freeway. Maybe the spare tire cover. Anyone else hearing this?

Thanks again for the feedback.