Removal and Installation of Optical Sensor: Removal

WARNING: This page is about a different car, the 2005 Nissan Frontier. However, it is still accessible from the selected car via links, so may be relevant.

Using a thin blade screwdriver, gently pry upward to release optical sensor from defrost grille.
Disconnect the optical sensor connector.

Fig 1: Disconnecting Optical Sensor Connector
Courtesy of NISSAN MOTOR CO., U.S.A.