What does a flashing "overdrive" light generally indicate?

A flashing "overdrive" light is an important warning signal that indicates a malfunction in the transmission system. When this indicator flashes, it suggests that there may be an issue affecting the transmission's ability to engage or operate in overdrive efficiently. This warning helps alert the driver that the vehicle may require immediate attention to avoid potential damage to the transmission system.

In a properly functioning transmission, the overdrive gear is designed to enhance fuel efficiency by allowing the engine to operate at a lower RPM during high-speed driving. However, if the vehicle’s computer detects a problem — such as slipping gears, overheating, or other transmission irregularities — the flashing light serves as a signal to the driver to seek service. Understanding this alert helps ensure that the driver can take corrective actions before further complications arise.