Systems and methods for pairing a personal electronic device of a passenger with a passenger seat in a vehicle using a PWM light identification, and for allowing the personal electronic device to control passenger in-seat functions and features. The system comprises an on-board video system having an in-seat display system for installation in a vehicle. The on-board video system is configured to communication a PWM light identification from a monitor of the in-seat display system which is captured by an imaging device of the personal electronic device. The on-board video system receives pairing information from the personal electronic device corresponding to the captured light identification via a wireless communication link. The on-board video system then validates the pairing information and pairs the personal electronic device to the passenger seat and authorizes the personal electronic device to control passenger seat functions associated with the passenger seat.