“Overdrive” is your vehicle’s highest gear — designed to improve fuel efficiency by lowering engine RPMs during steady highway driving.
But in real-world conditions, that efficiency can come at a cost.
When your vehicle is under load — climbing hills, carrying weight, or driving in traffic — staying in a high gear can increase mechanical stress and reduce performance.
That’s where the “O/D Off” or “Tow/Haul” mode makes a difference.
By disabling overdrive, your transmission holds lower gears longer, delivering more consistent power and reducing unnecessary gear shifting — a common cause of excess heat and long-term transmission wear.
Over time, this simple adjustment can help minimize repair risks and protect critical drivetrain components.
