There is no trunk "release". Just a button on the dash with the picture of a key on it. Push that and it unlocks the doors and trunk. Push the blank side, and it locks everything. Or as previously said, press lock, or unlock 2 times on the key fob and that works the lock on the passenger door and trunk. You have to open the trunk manually (I have a Roadster, but am assuming that it works the same for the coupe hatch).