Originally Posted by former NXMX5
[..] there is a way that one push will unlock both doors and the trunk; i think you hold either the lock or the unlock button for five seconds and look at the LED on top for some flashes, or something similar.[...]
Hold BOTH buttons of the remote for 5s, the red led flashes - done. Same for programming the other way round. Try... don't have to near the car.