Motor Driven Power Steering (MDPS)
Power steering uses the motor to assist you in steering the vehicle.
If the engine is off or if the power steering system becomes inoperative, the vehicle may still be steered, but it will require increased steering effort.
The MDPS is controlled by the power steering control unit which senses the steering wheel torque and vehicle speed to command the motor.
The steering effort becomes heavier as the vehicle's speed increases and becomes lighter as the vehicle's speed decreases for better control of the steering wheel.
Should you notice any change in the effort required to steer during normal vehicle operation, have the power steering checked by an authorized Kia dealer.
The following symptoms may occur during normal vehicle operation:
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The MDPS warning light does not illuminate.
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The steering effort is high immediately after turning the ignition switch or ENGINE START/STOP button on. This happens as the MDPS system performs the diagnostics. When the diagnostics is completed, the steering effort will return to its normal condition.
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A click noise may be heard from the MDPS relay after the ignition switch or ENGINE START/STOP button is turned to the ON or LOCK/OFF position.
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A motor noise may be heard when the vehicle is at a stop or at a low driving speed.
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The steering effort increases if the steering wheel is rotated continuously when the vehicle is not in motion. However, after a few minutes, it will return to its normal conditions.
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When the charging system warning light comes on due to low voltage (when the alternator or battery do not operate normally or malfunction), the steering wheel may require increased steering effort.
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When you operate the steering wheel in low temperature, abnormal noise could occur. If temperature rises, the noise will disappear. This is a normal condition.
If the Motor Driven Power Steering System does not operate normally, the warning light will illuminate on the instrument cluster.The power steering system will not operate and steering effort can increase. Take your vehicle to an authorized Kia dealer and have the vehicle checked as soon as possible.