Profile is explained line by line according to the 8 role gates as well as the subdivisions that categorize both the conscious and unconscious sides of Profile. You can see how the Passenger can relate to the conscious aspect of the Profile, even as the not-self. But the unconscious has no access to it. Once the basic laws of mechanics are applied (Strategy and Authority) it becomes easier for the Vehicle. For the Passenger, the Identity behavior is psychological. For the Vehicle it is the nature of the form itself.
Please note: You do not need to have a role gate defined in your chart. The information of each role gate applies to everyone.