Saab Problems? Ask a Mechanic for Answers ASAP
I am sorry that you have not been helped yet. I just came online and saw your question
If you did not adjust/aim the headlamp after replacement, this can cause the warning light and prevent the automatic leveling from functioning. If you did, then you need to recheck connections to the headlamp assembly for connectors being secured and no pinched wires. If ok, then I would recommend having it scanned for error codes to know where the issue lies.
If you need to directions in aiming the headlamp, let me know and I can upload them for you