2003 Toyota Sequoia SR5 cruise control problems

While driving down a familiar two lane road with many curves and not reaching a speed above 45 MPH, I came upon a curve, braked, and steered my sequoia appropriately. I was driving on the outside of the curve, but when I tried to turn with the curve, my sequoia headed toward the oncoming lane of traffic. As it veered toward the fence posts on the other side of the road, I could not slow it down or steer it back to my lane. No matter how I pressed the brakes, it would not slow down but instead sped up.

I've had problems with my 2003 toyota sequoia trac control, vsc, and ABS lights going, about a dozen times since new, but they would go off after shutting the car off. Now that have come on and stay on. I took it to the dealer and they say its the yaw sensor and will cost around $650 with parts and labor. I think there have been a lot of complaints with this part failing and maybe something that needs looking into since its part of the vehicles safety equipment.