Method
To open all the windows, press and hold the unlock button
To close all the windows, press and hold the lock button
If you are unable to close the windows by remote, you probably need to set the fully closed position:
Open the window
Fully close it using driver's window control
Press and hold up button for 5 seconds
The fully closed position has now been set. Repeat the above steps for all windows.
NB. This needs to be done every time you disconnect the car's battery.
mick, October 2008