What does the REDUCED PERFORMANCE fault light indicate?

The REDUCED PERFORMANCE fault light serves as an important indicator related to the overall functionality of the traction system. When illuminated, it signifies that there is an issue with the traction system's ability to perform optimally. This can include problems with components such as the electric motors, control systems, or other critical elements responsible for generating and delivering traction power.

Recognizing this light is essential for operators because it prompts immediate investigation into the traction system's integrity. Understanding that this warning specifically relates to the traction system allows for timely maintenance or repairs, which can prevent further complications and ensure safe operation.

On the other hand, the other choices highlight different issues unrelated to the traction performance. For instance, engine overheating would point to cooling system problems rather than traction. A low battery level would indicate a power issue, but not necessarily the performance of the traction system itself. Finally, malfunctioning doors would concern the safety and accessibility of the vehicle rather than its propulsion capability. Thus, the REDUCED PERFORMANCE fault light is unequivocally associated with the integrity of the traction system.