Take hold of the bottom of the safety grille and pull back/up.
The safety grille is normally permanently installed in the car because it can easily be folded up in the roof and so be out of the way if a longer cargo area is required. However, if desired, the safety grille can be dismantled and removed from the car.
For information about the tools required and methods for fitting/removal, see the installation instructions1 that were included with the initial purchase.
For safety reasons, the safety grille must always be correctly fastened and secured when being refitted.