When the overdrive button is engaged, the transmission will automatically shift into overdrive gear when the vehicle reaches a certain speed. This can help to improve fuel economy by reducing engine speed at highway speeds.
However, there are also some situations where it may be desirable to disengage the overdrive button. For example, when driving in hilly or mountainous terrain, the overdrive button can be disengaged to prevent the transmission from shifting into overdrive too frequently, which can cause the engine to labor and waste fuel.
Additionally, the overdrive button can be disengaged when towing a heavy load or when driving in slippery conditions, as this can help to improve traction and control.
In summary, the overdrive button in a Toyota Land Cruiser is a versatile feature that can be used to improve fuel economy, performance, and safety.
