B means Brake mode that some types, such as electric cars and trucks, provide. You may use it to decelerate or keep downhill speed without having utilizing the auto’s brakes. The first work of an automatic transmission is to enable the motor to function in its slim array of speeds https://lukaszywtq.blogspothub.com/32917390/the-fact-about-gearbox-auto-that-no-one-is-suggesting