How do I change the frequency on my key fobs??? I think another Bimmer in parking lot has same possible frequency. Found doors unlock and trunk wide open on different days. We always lock when exiting. Or is it just a dealer rectified issue?

 

You probably just sat on the key fob. There's a lot more technical explanation of how the fob works and how unlikely it is two cars in the same area are somehow synced, but I'm notthe best to explain that.

 

What he said......

It has happen to me before, is just the key and whatever u have on your pocket.