My T5 is setup with single locking - one click of unlock fob opens the driver's door only and two clicks of fob opens all the other doors. Clicking the lock fob locks all doors fine. In addition if you open the T5 driver's door and then drive off, after a short distance the central locking system is engaged and all locks are activated - guess anti-hi-jack feature.
All has worked fine, but more recently I have noticed that when driving off the anti-hi-jack feature is not locking the passenger door. It seems to try to lock it, but it does not hold. Any ideas of the what might be causing this? What is more confusing is that the locking with the fob works fine.