That's what I did for both seats and I have no airbag/serv light.
You'll need to remove a side cover via a torx 20 at the back of the seat, then the pre-tensioners are torx 35 iirc.
Then just remove all wires, but on the drivers side runners you'll find a switch/sensor try to be careful when removing it, it snaps quite easily.
Then just put your old pre-tensioners back in and plug them into their respective clips from the seat well.
If this doesn't work maybe get a diagnostic to see the problem and wipe off the error, I doubt you'll need to do that unless something else is triggering the light.
All this is easier with the seats either unbolt from chassis or seats unbolted from the runners whichever you prefer to do.