Ford Taurus 2011 Owner's Manual page 256

Driving
To return to O/D (overdrive mode), press the transmission control switch
again.
• The Grade Assist lamp in the instrument cluster will not be
illuminated.
• The transmission will operate in gears one through six.
L (Low)
• Provides maximum engine braking
• Will downshift to the lowest available gear for the current vehicle
speed; allows for first gear when vehicle reaches lower speeds
• Is not intended for use under extended or normal driving conditions
and results in lower fuel economy.
Understanding the gearshift positions of the 6–speed with
SelectShift Automatic™ transmission (SST) (if equipped)
Your vehicle has been designed to improve fuel economy by reducing
fuel usage while coasting or decelerating. When you take your foot off
the accelerator pedal and the vehicle begins to slow down, the torque
converter clutch locks up and aggressively shuts off fuel flow to the
engine while decelerating. This fuel economy benefit may be perceived
as a light to medium braking sensation when removing your foot from
the accelerator pedal.
256
2011 Taurus
Owners Guide, 3rd Printing
USA (fus)