Unlocking the tailgate using the remote key

The remote key can be used to unlock the tailgate while keeping the rest of the vehicle locked.
16w17 - SPA - Unlock/open tailgate with remote key button
Press the P5-1646-x90-Remote key icon for trunk opening/closing button on the remote key.

The tailgate will be unlocked but remain closed.

The side doors remain locked and armed. The lock and alarm indicator on the dashboard will go out to indicate that the vehicle is no longer fully locked.

Press lightly on the rubberized pressure plate under the tailgate handle to open the tailgate. If the tailgate is not opened within 2 minutes, it will be relocked and the alarm armed.

With the optional power tailgate* -

Hold and press (about 1.5 seconds) the P5-1646-x90-Remote key icon for trunk opening/closing button on the remote key

The tailgate will unlock and open. However, the side doors will remain locked and armed.
  1. * Option/accessory.