remote keys don't work- general module (GM) issue?

[Tonyfeb14]

2003 x5 4.4 with 164k. The remote key stopped working with no notice. I can lock and unlock all doors from the driver's door manually with the key but no reaction with the remote key buttons. But curiously the button 3 still activates the rear hatch. And the central locking switch on the center console also now is dead and does nothing. All was working fine up to this point.

For grins I checked the fuse for the General Module and that is ok. I am wondering if the general module (GM) located behind the glove box partially failed?

Thanks for any ideas before I start looking for a replacement GM. And if I do replace it, not sure if there is any reprogramming required.