What does the wrench light mean on a 2007 Ford Fusion?

The wrench light on a 2007 Ford Fusion indicates a problem with the vehicle's powertrain, often related to engine or transmission issues. It serves as a warning that the vehicle's onboard diagnostic system has detected a malfunction that needs attention. While the car may still be drivable, it's advisable to have it checked by a mechanic to diagnose and address the underlying issue. Ignoring the light could lead to more serious problems down the line.