In this case, I don't have the lock/unlock/alarm fob on me (too big to have 2 keys on my key chain for this vehicle), just the single mechanical key. Using the fob, no problem to unlock/enter (though I can't drive without the mechanical key). Using just the mechanical key, I absolutely must open the driver-side door before I open any other door, otherwise it sets off the alarm. We did have auto-start installed (press lock 3-times on the fob); wondering if this may have messed with the wiring.