2008 PORSCHE CAYENNE lock

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Page 47 of 95

PORSCHE CAYNNE 2008 1.G Information Manual Oversteer with PSM
Understeer without PSM
Car steers
off line Car steers
off line PSM corrects
line and
stabilises car
PSM corrects
line and
stabilises car
Understeer with PSM Oversteer withou

Oversteer with PSM
Understeer without PSM
Car steers
off line Car steers
off line PSM corrects
line and
stabilises car
PSM corrects
line and
stabilises car
Understeer with PSM Oversteer without PSM
All Cayenne models are
equipped with Porsche Stability
Management (PSM) as standard.
This electronic control system
uses a range of functions –
including anti-lock braking (ABS) –
to help stabilise the vehicle
(and trailer, if fitted) in hazardous
road scenarios. Throughout each
journey, PSM uses a range of
sensors to monitor the direction,
speed, yaw velocity (speed of
rotation around the vertical axis)
and lateral acceleration of the
car. The system then calculates
the actual direction of travel. If
the car begins to oversteer or
understeer, PSM applies selective
braking on individual wheels to
restore stability. If necessary,
PSM can also intervene in the
engine management system to
temporarily modify the amount
of drive to the wheels.PSM has two additional functions
that help reduce braking distances.
If the throttle pedal is released
suddenly, PSM automatically
readies the braking system. The
pressure in the brake lines is
marginally increased, bringing
each of the pads into light contact
with the corresponding disc. If the
driver goes on to apply the brakes,
the calipers respond more quickly.
In an emergency stop – i.e., when
the pressure on the brake pedal
exceeds a certain threshold –
the brake assist function uses
the PSM hydraulics to apply
maximum braking force at all
four wheels.
PSM makes a significant contribu-
tion to car and trailer safety –
within the laws of physics. It
compensates for load transfer
caused by throttle and brake
inputs up to the maximum degree
of lateral acceleration. It also
enhances the car’s driving dynam-
ics and directional stability when
accelerating on variable road
surfaces. PSM can also intervene
through the locking centre and
axle differentials as part of
Porsche Traction Management
(PTM).
Other features include a
special control strategy in
the PSM-integrated ABS for braking on loose surfaces such
as gravel or snow. By briefly
locking the wheels, a wedge is
formed ahead of each tyre which
provides additional purchase
to help slow the car.
For a more active driving experi-
ence, PSM can also be disabled.
For safety reasons, it remains
active in the background, ready
to intervene in critical scenarios.
Expecting the best means preparing for the worst.
Porsche Stability Management (PSM).
Safety
· 99 · · 98 ·

Page 61 of 95

PORSCHE CAYNNE 2008 1.G Information Manual Comfort, ergonomics and security.
Anti-theft protection.
The Cayenne models are all
equipped as standard with an
engine immobiliser and anti-theft
alarm featuring ultrasonic interior
surveillance.
The

Comfort, ergonomics and security.
Anti-theft protection.
The Cayenne models are all
equipped as standard with an
engine immobiliser and anti-theft
alarm featuring ultrasonic interior
surveillance.
The alarm circuit includes all four
doors, engine lid, tailgate, rear
screen, interior, ignition and trailer
(if fitted).
The immobiliser system works by
automatically communicating with
the vehicle key. If the key is ap-
proved, the engine can be started
as normal.
When the key is removed from the
ignition, the steering column is
automatically locked to provide
additional security.
Porsche Entry & Drive.
With this optional system, you can
reduce the inconvenience of a con-
ventional key.
The moment you touch the door
handle
, the system automatically
checks the encrypted access code
on the key in your pocket. If the
code is accepted, the doors are
unlocked. To start or stop the
engine, simply push the ignition
button.
To lock the car on leaving, all you
have to do is press a button on the
outside of the door handle. Porsche
Entry & Drive then secures the car
doors, arms the immobiliser and
locks the steering column.
Preparation for vehicle
tracking system.
This optional preparation available
for all Cayenne models enables
future installation of a vehicle
tracking system obtainable from
Porsche Tequipment. The system
can be used to locate a stolen
vehicle across much of Europe.
Includes special wiring loom,
higher capacity battery (depend-
ing on vehicle specification) and
tilt sensor for the alarm system.
Cruise control.
Standard on the Cayenne Turbo
and optional on all other models,
cruise control offers increased
comfort on long-distance journeys.
It can be used at speeds between
30 and 240 km / h (19 and 149 mph)
and is activated using a button on
one of the control stalks.
Slide /tilt sunroof.
Available as an option on all
Cayenne models, the slide/tilt
sunroof is made from tinted
single-pane safety glass and has
a manually adjustable sunscreen.
The roof position is easily adjusted
using a single illuminated rotary
control. The sunroof also has
an anti-jam facility, as do all the
electric windows.
Comfort lighting package.
One of the special features in this
optional package is the ‘Welcome
Home’ lighting function. When you
arrive at a destination after dark,
the headlights remain
illuminated
Comfort
for a user-defined period, lighting
your path from the car. Other
features include courtesy lights
on both exterior
mirrors, auto-
matic headlight activation and
automatically dimming interior
and exterior mirrors.
· 127 · · 126 ·

Page 62 of 95

PORSCHE CAYNNE 2008 1.G Information Manual Explore the world.
In every direction.
Panoramic roof system.
The electrically operated
panoramic roof system is available
as an option on all Cayenne models.
Made from laminated safety glass,
it has

Page 76 of 95

PORSCHE CAYNNE 2008 1.G Information Manual Personalisation
Exterior.
Option I no. Page
• Wheel arch extensions in black• ••
•–
• •6GF 89
• Bi-Xenon headlights with static/dynamic
• ••
••
••PC1 92
cornering ligh

Page 92 of 95

PORSCHE CAYNNE 2008 1.G Information Manual · 189 · · 188 ·
Technical data
* At DIN unladen weight, ground clearance at axle centre, Cayenne Turbo with air suspension.Some of the vehicles featured in this catalogue are fitted with optional

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