when you repair the door lock cylinder, make sure the door lock actuator part is correctly centered. Sometimes after repairing the lock cylinder, the GM may not respond correctly. You may need to disconnect the drivers door lock actuator and reconnect it. Or possibly plug in a new one to reset it.

The soft close actuator for the trunk and the rear door locks are powered by the same relay. This relay can be replaced with some electrical knowledge.

See scott's notes on which relay it is.

https://www.bmwgm5.com/Images/GM3/GM..._Annotated.htm

https://www.bmwgm5.com/V23086-C1001-A403.htm