The front passenger window does not close with a one touch (pull up) button on the drivers door switch cluster.

The one touch (press down) works from the drivers door switch cluster and is fully functional (up & down) using the passenger door switch.

All remaining one touch functions work for the other doors. Restoring one touch, as stated in the manual, opening and closing does not cure it so it is the switch

I can buy a new switch but have tried a few times to disassemble the drivers door switch trim to get to the offending part but have failed.

Alternatively do I have to buy a new switch or is it repairable.

Any advise please