What is the OD functioning in TOYOTA RAV 4 MODEL 1998?

In the 1998 Toyota RAV4, the OD (Overdrive) function is designed to enhance fuel efficiency during highway driving by allowing the engine to operate at lower RPMs. When the OD is engaged, the transmission shifts into a higher gear, reducing engine load and improving fuel economy. Drivers can manually disable the OD feature, which is useful for situations requiring more power, such as towing or driving on steep inclines. The OD indicator light on the dashboard helps inform the driver when the feature is active or disabled.