Overdrive is a function in autos that enables the transmission to shift to a better gear ratio than regular, decreasing engine velocity and bettering gas economic system. It’s sometimes used on highways or different roads the place speeds are fixed and there’s no need for acceleration.
Overdrive may be turned on by shifting the gear selector to the “D” place after which urgent the “O/D” button. The “O/D Off” mild on the dashboard will illuminate when overdrive is turned off.