I guess I didnt check it at the dealer. I have an 06 with NAV, and I received a key with a trunk release button. I bought in Nevada/California, not Canadian. The trunk release button does not appear to do anything.

Did you try holding it down for about 1.5 seconds? When I just got mine I clicked it like I would to unlock the doors but that is not enough, needs to be held down a bit longer.

Thanks - that was it. I seem to set off the alarm after I shut the trunk though....

My pleasure, it is nice to be able to help someone else as I always feel like I am the one needing it.