This may sound silly, but is it locked?
It took me a little while to figure out and understand the locking/unlocking of the doors.
I had it set to unlock only the driver's door when the key fob approaches.
As a result, when I approach the car and push the passenger button, nothing happens.
When I approach the car and open the wings with the key fob, the wings open no problem and I load the kids.
However, this DOES NOT unlock the doors. So my wife would push the button on the passenger door, and nothing happens.
It took a while for me to figure out that it was STILL locked, and I had to double click the roof of the fob.
I still haven't worked out when I need to double-click ONCE vs double click TWICE. I would've thought that I needed to double click twice to open all the doors, but it seems to work when I only double click once....
Its just harder to figure out when there is no obvious visual sign of being locked or not...