I read in manual and was also told that the door gets auto locked when car goes above 20, I was just trying to set this feature by using the Menu buttons as directed in manual, but could find any option. If any one has done it plz help. Also wud like to know hw to open the door for some to get in when its locked, as of now I open the drivers door and the doors are unlocked. Is it the right and only way :confused1?? plz suggest I have active MJD and central locking was installed by fiat.