Unlocking the tailgate with the remote control key
It is possible to unlock just the tailgate by pressing a button on the remote control key.
Press the remote control key's 
button.
button.The tailgate is unlocked but remains closed.
The side doors are still locked and the alarm is armed*. The lock and alarm indicator on the instrument panel extinguishes in order to show that the entire car is not locked.
Lightly grasp the rubberised pressure plate beneath the tailgate handle to open the tailgate. If the tailgate is not opened within 2 minutes then it is relocked and the alarm is re-armed.
With the power operated tailgate option* -
Long press (approx. 1.5 seconds) on the remote control key's button
The tailgate is unlocked and opened, while the side doors remain locked and their alarm functions armed.