CITROËN C4 Handbook page 186

Driving
Sport and snow
programmes
These two special programmes supplement the
automatic operation in very specific conditions
of use.
Sport programme "S"
F Press button "S", after starting the engine.
The gearbox automatically favours a dynamic
style of driving.
S appears in the instrument panel.
184
Snow programme "T"
F Press button "T", after starting the engine.
The gearbox adapts to driving on slippery
roads.
This programme improves starting and drive
when traction is poor.
T appears in the instrument panel.
Return to auto-adaptive
mode
F At any time, press the button selected
again to leave the special programme
engaged and return to auto-adaptive mode.