I tried that solution. But it didn't help. I also tried overriding the opening by keep pressing on "trunk" on the "doors" display like I can override the FaWD by keep pushing on the FaWD doors button. Couldn't override the trunk, no movement of the trunk and no warning chime like the FaWD. So I was thinking about resetting the trunk, if that would be possible at all. Thanks PA85_DA for your reply. But are there any other solutions possible?