2004 Toyota Highlander stability control problems

While traveling through a highway construction zone my car suddenly became hard to steer, and my speed became greater, tried to (break) decelerate the car began sliding out of control-plowing into the road construction barriers part lodged in front passenger windshield. The car went through the ditch became airborne through a rod iron fence shattered the rear second-row right side window spun out , and came to rest just feet from the some pileings.

The car's vsc (vehicle skid control) system activated on a dry straight road. The brakes went on and reduced the speed to about 5MPH, making the car undrivable. Glad this didn't happen in traffic. The car was turned off, and restarted, and I could get it to about 10MPH, and then it would apply the brakes quickly and reduced power no-matter what the throttle position was, and the car was limited to about 5MPH.