Hi there, welcome to the club fantastic cars when they're not acting up! My previous gv had the same problem with the door locks, quick 'fix' pop the bonnet, go to the fuse box and take the Iod fuse out for a few seconds. Back in and they'll start working. I think it's caused by a sticky lock actuator, so if you feel like it, take door cards off and clean them up, lube them up and it might sort it. (mine was because the rear doors had their popup locks removed as it was used as a taxi, and I suspect this was causing jamming problems)