Transmission Description: Notes

WARNING: This page is about a different car, the 2003 Lincoln Aviator. However, it is still accessible from the selected car via links, so may be relevant.

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.