Low & Reverse Brake

Low & Reverse brake is engaged at 1st gear of L range and R range. When it operates, the planetary carrier is held.

Power flow: 

Low & Reverse brake--> Planetary carrier hold

Fig 1: Low & Reverse Brake Power Flow Diagram

Courtesy of KIA MOTORS AMERICA, INC.

Low & reverse brake is of the multiple disc type and is composed of a center support, disc plates and a piston. The brake operates when the shift is in 1st gear in the "L" range or back gear. It fastens the carrier in the planetary gearing set. That is, the shafts of the long and short pinions are fastened.

Fig 2: Identifying Center Support And Piston

Courtesy of KIA MOTORS AMERICA, INC.