What is speed sensitive power steering?

When the car is driven at low speed, the power steering gives full assist so the driver can

turn the steering wheel easily. Parking or turning tight corners can be done with little effort.

As vehicle speed increases, the mount of power steering assist is reduced and the steering wheel becomes harder to turn. This gives the driver more feedback about road conditions through the steering wheel and better vehicle control. If an emergency arises and the driver needs to turn the steering wheel quickly, the full power assist is provided almost immediately after the wheel is turned only a few degrees.