Transmission Description
The 5R55S has the following features:
- five forward speeds
- electronic shift, pressure, and torque converter clutch controls
- three compound planetary gearsets
- three bands
- three multi-plate clutches
- two one-way clutches
All hydraulic functions are directed by electronic solenoids. The solenoids control:
- static engagement feel.
- shift feel.
- shift scheduling.
- modulated torque converter clutch (TCC) applications.
- engine braking utilizing the coast clutch and band.
- manual first and second timing.
- reverse inhibit timing.