one key works at a time
 

I can only use one key at a time. If I use one the other stops working. What could be causing that? Thanks.

Wow lots of key ???

I think that's the way it works. I'm pretty sure if you lock your keys in car with the key in the ignition, you can't use the other key to unlock the car.

I have both keys in my hands and only one works to open car. If I program the other then the one that was working stops. No keys in ignition and still only one works.

lvly...weird.
Someone here has to have an idea.
I'm clueless. Those are some real gremlins.
GL,mD

No gremlins.....
You have to program both keys at the same time
When coding keys to the car the memmory is erased, so if you code one key then only that key wil work.
Just do the coding for the both keys at the same time and it wil be fine :)

How do I do that? I searched and can't find the instructions. Thanks.

http://www.xoutpost.com/articles/x5/e...ob-bmw-x5.html

I think this one should do it :)