Thalia electric seat malfunction

Weird. My old Opel Astra had a similar issue with the driver's seat. Check the seat harness and connections under the seat. Might be a loose wire or corroded connector.

Thanks! I'll check the harness. Did your Opel throw any codes, or just a dead seat?

No codes, just dead. The dealer found a fault in the seat's motor control module, likely from a voltage drop. Workshop visit is best.

Shop confirmed voltage issue. Battery was dying and messed up the seat motor. New battery and seat module reset, cost 290€. Thanks for the help!