Driving and Driving Safety 159
Decelerating
f Briefly pull the control stalk on the steering
wheel towards the steering wheel (position 2).
The desired speed is decreased in steps
of 1 mph (1 km/h).
or
Pull the control stalk on the steering wheel
towards the steering wheel and keep it pulled
(position 2).
The desired speed is decreased in steps
of 5 mph (10 km/h).
The new desired speed is displayed on the
multi-purpose display in the instrument panel.
Vehicles with Tiptronic S
Downshifts are carried out to help maintain the
pre-selected speed (especially when driving
downhill).
Cayenne S and Cayenne Turbo only:
If the driving speed is more than 1 mph (1 km/h)
higher or lower than the set speed, the current
driving speed is set when you move the control
stalk to position 1 or 2 briefly.
Interrupting cruise control operation –
OFF
The speed driven before the interruption remains
stored in the memory and can be reactivated by
pressing the control stalk.
f Please see the chapter “RESUMING THE
STORED SPEED – RESUME” on page 159.
f Press the control stalk down (position 3).
or
Press the brake or clutch pedal or move the
Tiptronic selector lever to position N.
Cruise control operation is interrupted
automatically:
– If the set vehicle speed is exceeded by more
than approx. 16 mph (25 km/h) for longer
than 20 seconds.
– If the actual vehicle speed falls below the set
vehicle speed by approx. 37 mph (60 km/h)
for longer than 60 seconds (e.g. gradients).
– If Porsche Stability Management (PSM)
intervenes for longer than 0.5 seconds.
Resuming the stored speed – RESUME
f Press the control stalk up (position 4).
Cruise control accelerates/decelerates the
vehicle to the stored speed.
Information
The stored speed should only be recalled if traffic
and road conditions are conducive to driving at
that speed.
Switching cruise control readiness off
f Press button A on the control stalk.
The memory is cleared and the readiness
symbol disappears.
The stored desired speed is cleared when the
ignition is switched off when the vehicle is parked.
Information
On upward or downward slopes, the set speed
cannot always be maintained by cruise control.
f To obtain sufficient engine braking or a better
engine-speed range, you therefore have to
change down to a lower gear.
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