Happened twice yesterday and persisted till this morning on the way to the dealership.
Took it to dealer this morning, and it seemed like it registered a Electronic Damper Control (EDC) Fault. The warning is gone for now, so they let me take the car back and the warning hasn't come up again yet.
First time this has happened to me. They're going to do a full diagnosis on Tuesday (they ran a "short test" today). We'll see what happens!