Programming of transponders and remote controls
WARNING: This page is about a different car, the 2006 Saab 9-5. However, it is still accessible from the selected car via links, so may be relevant.
Replacement TWICE control modules include 2 car keys that are programmed in the new control module. If additional car keys, e.g. the old ones, are to be used, they can be programmed into the new control module. The control module must recognize them. A maximum of 4 car keys can be programmed at a time.