Overdrive Control Switch

The overdrive control switch is installed to the shift selector knob.

Fig 1: Overdrive Control Switch
Courtesy of NISSAN NORTH AMERICA, INC.
When the O/D OFF indicator lamp on the combination meter is OFF and the overdrive control switch is pressed, the O/D OFF is active and the O/D OFF indicator lamp is ON.
When the O/D OFF indicator lamp on the combination meter is ON and the overdrive control switch is pressed, the O/D OFF is cancelled and the O/D OFF indicator lamp is OFF.