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Speed-Sensing Electronic Power Steering with Steering Torque Assist

A progressive power-assisted rack-and-pinion steering system on the RX 450h senses the vehicle speed and automatically delivers the appropriate level of steering assistance. The result is greater fuel efficiency and steering feel.

The RX 450h also features a steering torque assist system that can sense and respond when the vehicle is braking on a road with different levels of friction. For example, when braking with the left wheels on asphalt and the right wheels on snow, vehicles tend to deflect toward the higher-friction side due to the difference between the braking forces. By adding steering torque to balance the difference, vehicle control is enhanced.