A user is authorized to enter a side door in a vehicle having a rear closure by a method including: providing a door latch having an electric actuator energizable to unlatch the door latch; providing a rear closure latch that is unlatched by either a key operated lock cylinder or energization of an electrical actuator; providing a fob for transmitting a first radio signal indicating that a user is authorized to unlatch the door latch and a second radio signal energizing the rear closure latch; monitoring the transmission of the radio signals; monitoring the status of the closure latch to determine that the closure latch has been unlatched; and if the closure latch has been unlatched without the transmission of the second radio signal, calculating that the key was used, the user is authorized; and operating the door latch to permit user entry through the side door.