An exclamation mark on the steering wheel is a warning sign of a malfunction in the power steering system, and driving should not be continued under this condition. When the power steering system malfunctions, a corresponding warning light will illuminate on the dashboard. The power steering system warning light typically features a steering wheel with an exclamation mark next to it, usually in yellow. A malfunction in the power steering system may cause the vehicle to suddenly lose power steering assistance. If an obstacle appears ahead that requires evasive action, this could lead to a traffic accident. Vehicles equipped with hydraulic power steering systems should regularly have their power steering pump belts inspected. Hydraulic power steering systems include a power steering pump, which is driven by the engine via a belt. If the belt becomes worn, slips, or breaks, the vehicle will lose power steering assistance. Under normal circumstances, when the ignition switch is turned from OFF to ACC, the electric power steering system warning light will briefly illuminate to perform a self-check. If no issues are detected, the light will turn off. Scenarios when the electric power steering system warning light illuminates: 1. The light remains on continuously. This indicates a complete failure in the electric power steering system, requiring inspection and replacement of faulty components at a repair shop. 2. The light briefly illuminates for five to ten minutes before turning off. This is caused by overheating of the electric power steering motor. In this case, the system will enter an overheating protection mode, reducing or pausing motor assistance until the temperature decreases, after which normal operation will resume. If the warning light remains on after the ignition switch is turned on or during driving, it indicates a fault in the electric power steering system. Immediate inspection and repair at a service center are recommended. If a yellow warning light illuminates, it means partial failure of the steering system, resulting in increased steering effort and difficulty. If a red warning light illuminates, it indicates complete failure of the steering system, with power steering assistance fully disabled. The driver should reduce speed immediately, park the vehicle safely, and arrange for repairs or assistance.
