At high speed, the car slipped into neutral or actually brakes without me knowing. The car slowed down causing me to have to go to the breakdown lane when I could. However, when the car goes into brake, the steering wheel locks up so you cannot steer; you have to push it into D to get it to steer again and be on your way. That is, if you see it. Because I did not notice the gear lights, my car was in B for a long time before it started to decelerate and that must have done a number on my brakes.