Been an owner of an Hyundai Matrix 1.6 SXI Automatic for five days. Just been to lock the car and found that only the drivers door locks with the key fob. The central locking system is factory fitted and is made by Direct Electronics. The model is MAXX1. I have tried to lock the doors with the key but again only the drivers door locks, when all the doors are locked manually on exiting the vehicle then remote lock the car to lock the drivers dorr and enable the alarm, all fine. I can use the key fob to disarm the alarm and all the door locks open, but again when I try to lock the car only the drivers door locks. Any help out there would be great.