What Does the Exclamation Mark on the Steering Wheel Mean?

[MiguelAnn]

An exclamation mark on the steering wheel indicates a fault in the vehicle's electric power steering system. The possible causes include: 1. Partial failure of the steering system; 2. Complete failure of the steering system, with the power steering function disabled; 3. The handbrake is not released; 4. The EPS (Electric Power Steering) is not activated; 5. Malfunction of the power steering pump. Solutions for the exclamation mark on the steering wheel include: 1. Inspect the power steering system; 2. Repair or replace the power steering pump; 3. Remove any foreign objects in the steering hydraulic lines; 4. Bleed air from the steering system; 5. Check for engine faults. The working principle of a car's steering wheel is to transmit torque to the rack-and-pinion mechanism, thereby enabling the wheels to turn left or right.