Porsche Cayenne Owner's Manual page 231

Vehicles with Tiptronic S
f Reduce speed to below 9.3 mph (15 km/h) or
stop vehicle.
f Move selector lever to position N.
f Push rocker switch A forward until activation of
the off-road driving program is indicated on the
multi-purpose display of the instrument panel
and by illumination of light-emitting diode B.
The Low Range indicator light on the instru-
ment panel and light-emitting diode B beside
the rocker switch flash several times during
the shifting process.
Low Range is now engaged.
Danger!
Serious risk of injury or death. Risk of
accident due to uncontrolled vehicle
movement. The selector lever is blocked
during the shifting procedure. Shifting when
driving uphill can cause the vehicle to stand
still or even roll backwards, if the shifting
procedure has not yet been completed.
When driving downhill, the vehicle can accel-
erate unintentionally while shifting.
f Increased brake readiness is required.
f Please observe the chapter "POWER-TRANS-
MISSION AND RUNNING-GEAR CONTROL SYS-
TEMS" on Page 235.
A - Rocker switch
B - Low Range is engaged
C - Center differential lock is fully engaged
Fully engaging the center differential lock
in Low Range
Tip on driving
When the center differential lock is fully engaged,
there is no longer any speed difference between
the front and rear axles. If, for example, both
wheels at the front axle lose traction on an icy
road or soft surface, the rigidly linked drive wheels
will permit the vehicle to continue moving never-
theless.
f Push rocker switch A forwards in stages until
engagement of the center differential lock is in-
dicated on the multi-purpose display of the in-
strument panel and by the illumination of the
two light-emitting diodes B and C.
The center differential lock is changed over to
fully engaged state by the automatic control
system.
Shifting Gear, Traction Systems
231