Driving and Driving Safety 197
D - Automatic selection mode (in the road
driving program)
The functions of selector lever positions D and M
differ in the on-road program, High Range, and in
the off-road program, Low Range.
f Use selector lever position D for “normal” dri-
ving.
The gears are shifted automatically according
to the accelerator position and speed.
Depending on the way the vehicle is driven and on
the resistance (e.g. uphill), the gear-changing
points are shifted towards higher or lower engine-
speed ranges. Movement of the accelerator,
driving speed, longitudinal and lateral acceleration
and the road profile all have an influence on the
gear-changing characteristic.
When PSM is switched off, transmission gear
changes are done at higher engine speeds.
Unwanted upward shifts, e.g. before corners, are
prevented by swiftly releasing the accelerator pe-
dal.
Depending on lateral acceleration, upward chan-
ges on corners are not made until the engine-
speed limit is reached.
During braking, and depending on the amount of
deceleration, the Tiptronic changes down earlier.
For subsequent cornering, the right gear is enga-
ged when pressure is applied to the brakes before
the corner.
The corner is taken in the right gear, and when you
accelerate out of the corner you do not have to
change down.
Moving off
In 2nd gear, the vehicle moves off with the throttle
only slightly open. Move off in 1st gear with the
throttle open wider or when the engine is cold
(Cayenne S only).
When PSM is switched off or when Sport mode is
switched on, the car generally moves off in
1st gear.
Shifting gear on the steering wheel
By shifting gear with the rocker switches on the
steering wheel, you can temporarily change from
automatic selection mode D to manual selection
mode M.
Advantages
– Shifting down before corners and on entering
built-up areas.
– Shifting down on downward slopes (engine bra-
king).
– Shifting down for brief spurts of acceleration.
– Selecting 1st or 2nd gear for moving off.
The manual selection mode remains engaged:
– For cornering (depending on the lateral accele-
ration) and overrunning,
– When the vehicle is stationary (e.g. at a junc-
tion).
The system leaves manual selection mode:
– automatically after around 8 seconds
(unless car is cornering, overrunning or
stationary),
– if you depress the accelerator to kickdown.
Temporary change-down
Precondition
– Speed is higher than approx. 33 mph
(54 km/h).
f Depress accelerator quickly.
The Tiptronic changes temporarily to the
sportiest gear-changing map, i.e. to the high-
est possible gear-changing points. Correspon-
dingly, the transmission shifts down immedia-
tely by one, two or three gears.
Ending the function
f Release the accelerator markedly (by approx.
25%).
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