In my 2009 xc70, when ever you press the lock on the key fob, the lights will flash, showing that you have locked the door. So, if you check the LOCK...lights will flash.
NOW, on my 2006, it only flashes once. Why do I care? If I am checking to see if the doors are locked, without going out in 7degree weather, I push the LOCK button...no light...Well, are the doors locked or is there a problem?....So, I unlock, then lock, so that I get the confirmation flash that they are locked. Whew! I would like to have the lights flash EVERY time I hit that lock button. I know, silly, trivial...but I wonder if this is an 'easy' mod...a different relay, etc. ... or a 'forget about it' issue.