Jaguar Repair Problems? Ask a Jaguar Repairs Expert.
Did the seat go back by itself?
I've seen seat harnesses short on the framework, that causes the seat back to fold in either direction depending on the fault.
The seat needs to come out for harness inspection.
Maybe a little difficult to drive to your repairer at the moment though.
Maybe he can come to you?
I hope my advice has been of assistance to you.