2009 PORSCHE PANAMERA lock

Driving and Driving Safety
201
Transmission and Chassis Control SystemsYour Porsche features a complex integrated system made up of all control systems acting in power transmission and in the chassis.
All control systems are networked with the aim of combining the best possible driving performance with maximum safety.
The following systems are invo lved, depending on equipment:
System/designation Scope
PTM
Porsche Traction Management – Active all-wheel drive with electronically
regulated map-controlled multiple-disc clutch
PSM
Porsche Stability Management – Driving stability control
– Anti-lock brake system (ABS)
– Brake system prefilling
– Brake booster (Hydraulic Brake Assist)
– Automatic brake differential (ABD)
– Anti-slip control (ASR)
– Engine drag torque control (MSR)
– HOLD function: standstill management
Air suspension
with level control and height adjustment – Full load-bearing air-spring stru
ts with integrated shock absorbers
– Height adjustment with Low Level setting in “S port Plus” mode and High Level setting for
maneuvering
PAS M
Porsche Active Suspension Management – Shock absorber system with adaptive, continuous shock absorber control
PDCC
Porsche Dynamic Chassis Control – Active chassis control system to stabilise
roll tendency of vehicle body when driving
– Controlled rear differential lock

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Driving and Driving Safety
Porsche Traction Management
(PTM)Porsche Traction Management is an active all-
wheel control system designed to influence
longitudinal and lateral dynamics. It is closely
linked with the Porsche Stability Management
(PSM) system.
The permanently driven rear axle enhances the
vehicle’s sporty features. Drive power is
distributed fully variably to the front axle,
depending on the driving situation.
In conjunction with PSM, the PTM system ensures
perfect distribution of power among all four
wheels in every driving situation. This improves
traction and driving stabil ity and ensures the same
high level of agility and dynamic response.
Warning!
In spite of the advantages of PTM and four-wheel
drive, it is still the driver’s responsibility to adapt
his driving style and maneuvers in line with road
and weather conditions, as well as the traffic
situation.
The increased safety that is provided should not
induce you to take greate r risks with your safety.
The limits set by the physics of driving cannot be
overcome, even with PTM or four-wheel drive.
Risk of accidents due to inappropriate speed
cannot be reduced by PTM or four-wheel drive. Advantages of PTM
– Clearly perceptible improvement in traction,
driving stability and steering ability of the
vehicle.
– Vehicle is more manageable when driven at its performance limits.
– Improved straight-ahead tracking and greater stability.
– More sporty vehicle setup while making full use of all the advantages of four-wheel drive.
– ASR and ABD further enhance traction for all wheels.
For information on ASR and ABD:
f Please see the chapter “PORSCHE STABILITY
MANAGEMENT (PSM)” on page 202.
Porsche Stability Management
(PSM)PSM is an active control system for stabilisation of
the vehicle during extreme driving maneuvers.
It operates together with the Porsche Traction
Management (PTM) system provided the vehicle is
fitted with the relevant equipment.
PSM makes use of both the ABD and ASR
systems, as well as the known functions of the
anti-lock brake system (ABS) and engine drag
torque control system (MSR).
Warning!
In spite of the advantages of PSM, it is still the
driver’s responsibility to adapt his driving style and
maneuvers in line with road and weather
conditions, as well as the traffic situation.
The increased safety that is provided should not
induce you to take greater risks with your safety.
The limits set by the physics of driving cannot be
overcome, even with PSM.
Risk of accidents due to inappropriate speed
cannot be reduced by PSM.

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Driving and Driving Safety
– Brake system prefilling:
The brake system is prepared for possible
subsequent emergency braking if the
accelerator pedal is released suddenly and
quickly. The brake system is prefilled and the
brake pads are already applied gently to the
brake discs.
– Brake booster (Hydraulic Brake Assist): In the event of an emergency braking operation
where the pedal force is insufficient, a brake
booster provides the braking pressure
necessary for maximum deceleration at all
4wheels.
Combined operation of PSM and PTM
In order to ensure optimum stabilisation of the
vehicle, torque distribution between the front and
rear wheels is adapted and the rear differential
lock is controlled on vehicles with PDCC.
In the event of a PTM fault, PSM cannot be
switched off.
If PSM is switched off, it is switched on again
automatically. Automatic brake differential (ABD)
The ABD system controls the front and rear axles
separately. If one wheel of an axle starts to spin,
it is braked so that the other wheel on the same
axle can be driven.
ABD recognizes different driving states, and it
features control strategies adapted to these
states. In situations in which little propulsive power
is required, such as when the vehicle moves off on
a level gravel surface, traction control already
becomes active at low engine speeds. If a large
amount of propulsive power is required, e.g. when
driving off on an uph
ill slope or for rapid
acceleration, the ABD system is adapted
accordingly.
Anti-slip control (ASR)
The anti-slip control system prevents the wheels
from spinning by adjusting the engine power,
thereby ensuring good lane-holding ability and
stable handling.
Engine drag torque control (MSR)
In conditions of excessive slip, the engine
drag torque control system prevents all driven
wheels from locking up when the vehicle is
overrunning. This is also the case for downshifts
on a slippery road.
Switching off PSMf Press button for at least 1 second.
PSM is switched off after a short delay.
The indicator light on the button and the
PSM OFF warning light on the instrument
panel light up.
The warning “PSM off” appears on the
multi-function display in the instrument panel.

Driving and Driving Safety
207
ABS Brake System
(Anti-Lock Brake System)
Warning!
In spite of the advantages of ABS, it is still the
driver’s responsibility to adapt his driving style and
maneuvers in line with road and weather
conditions, as well as the traffic situation.
The increased safety that is provided should not
induce you to take greater risks with your safety.
The limits set by the physic s of driving cannot be
overcome, even with ABS.
Risk of accidents due to inappropriate speed
cannot be reduced by ABS.
ABS ensures
– Full steering control
The vehicle remains steerable
– Good driving stability
No skidding due to locked wheels
– Optimum braking distance
Shorter stopping distance in most cases
– Prevention of wheel locking
No flat spots on the tires Function
The decisive advantage of ABS lies in the driving
stability and maneuverability of the vehicle in
hazardous situations.
ABS prevents locking of
the wheels during full
braking, on almost all road surfaces, until just
before the vehicle stops.
ABS begins to control the braking process as
soon as a wheel shows a tendency to lock.
This controlled braking process is comparable
with extremely rapid cadence braking.
The pulsating brake pedal and a “juddering noise”
warn the driver to adapt his driving speed to the
road conditions.
f If full braking is necessary, press the brake
pedal fully during the whole braking operation,
even though the pedal is pulsating. Do not
reduce brake pressure. If the ABS warning light lig
hts up on the instrument
panel while the engine is running, the ABS has
switched off because of a fault.
The warning message “ABS failure” appears on
the multi-function display in the instrument panel.
For information on warning messages on the
multi-function display:
f Please see the chapter “OVERVIEW OF
WARNING MESSAGES” on page 152.
In this case, the brake system will operate without
lock prevention, as on vehicles without ABS.
f Adapt your driving style to the changed
braking behavior.
The ABS must be checked by your authorized
Porsche dealer in order to prevent the
occurrence of further faults with unpredictable
consequences.
Please contact a qualified specialist workshop.
We recommend that you have an authorized
Porsche dealer to do this work as they have
trained workshop personnel and the necessary
parts and tools.
The ABS control unit is adjusted for the approved
tire dimensions.
The use of tires with no n-approved dimensions can
lead to different wheel speeds, causing ABS to
switch off. Warning light USA
Warning light Canada

Storage, Luggage Compartment and Roof Transport System
219
Opening
fPull the latch handle and open the lid.
Closing
f Always lock the latch handle with the
emergency key to secure the contents from
unauthorized access.
Cooled glove box
The glove box can be cooled if necessary.
Cooled air is directed into the glove box via
a separate air vent.
For information on cooling the glove box:
fPlease see the chapter “COOLED GLOVE BOX”
on page 83.
Storage tray in the armrest between the
front seatsOpening
f Press the button ( arrow) on the passenger’s
side of the armrest.
The lid pops up automatically.

Storage, Luggage Compartment and Roof Transport System
225
Emptying ashtrays in the doors1. Open the ashtray lid and carefully press it up.
The insert pops up slightly.
2. Remove the insert and empty it.
Front cigarette lighterCigarette Lighter
Warning!
Danger of fire and burning. The cigarette
lighter is ready for use regardless of the
ignition lock position
f Do not leave children in the vehicle unattended.
f Never touch the heating element or sides of
the lighter.
fOnly hold the heated lighter by the knob.
Rear cigarette lighterUsing front and rear cigarette lightersf Press briefly on the ashtray lid in the front
center console or slide the ashtray lid in the
rear center console sideways to the left or
right at the handle recess.
3. Press the lighter into the receptacle. When the element is red hot, the lighter will jump back to
its initial position.

Storage, Luggage Compartment and Roof Transport System
227
Adjusting rear seats to vertical positionfMake sure that the seat belts are not trapped.
Fold up the backrest until it locks with an
audible click.
The red control stud B must be lowered
completely.
Warning!
Risk of injury. The rear seat back rest must
be kept locked when driving. When you
brake or in the event of an accident, objects
can slide into the passenger compartment
and endanger the occupants.
f Always lock rear-seat backrests securely.
Luggage CompartmentThe maximum permissible load on the loadspace
floor in the luggage compartment is 200 kg. The
weight must be distributed evenly over the entire
luggage compartment floor.
For information on stowing loads and luggage:
fPlease see the chapter “STOWING LOADS” on
page 228.Opening/closing the luggage
compartment floorfFold the luggage compartment floor up or
down using the handle ( arrow).
Tie-down ringsThe load can be secured in the luggage
compartment to prevent it from slipping by
fastening tie-down straps to the tie-down rings.
fMake sure that all ring s are equally loaded
when securing a load.
Note on operation
The tie-down rings are no t designed to restrain
a heavy load in an accident.

228
Storage, Luggage Compartment and Roof Transport System
Stowing Loads
Danger!
Danger of injury. An unsecured or incorrectly
positioned load can slip out of place or
endanger the vehicle occupants during
braking, direction changes or in accidents.
Never transport objects that are not secured.
f Always transport loads in the luggage
compartment, never in the passenger
compartment (e.g. on or in front of the seats).
f Support the load against the seat backrests
wherever possible. Always lock the backrests
into place.
f Only transport heavy objects with the rear seat
backrests upright and engaged.
f Place the load behind unoccupied seats
whenever possible.
f Stow heavy objects as far forward as possible
on the floor, with lightweight objects behind
them.
f Never load the vehicle higher than the top
edge of the seat backrest.
f Always protect the passenger compartment
with a luggage compartment cover. Do not
drive with objects on top of the luggage
compartment cover. f
If the rear seats are not occupied, the
backrests can be addition ally secured with the
seat belts. Simply cro ss the outer seat belts
and insert each into the opposite buckle.
f Make sure that the load cannot damage the
heating filaments and the TV antenna in the
rear window.
Tie-down belts
f Do not use elastic belt s or straps to tie
down a load.
f Do not route belts and straps over
sharp edges.
f Observe the directions for use and information
for the tie-down equipment.
f Use only belts with a tear strength of at least
1543 lbs (700 kg) and a maximum width of
1 in. (25 mm).
f Cross the belts over the load. Driving
f
Vehicle handling changes depending on the
vehicle load. Adapt your driving style to the
changed driving behavior.
f Do not exceed the maximum gross weight
and axle load.
This information can be found under “Technical
data” in this Owner’s Manual:
f Please see the chapter “WEIGHTS” on
page 328.
f Never drive with the tailgate open. Exhaust
gases can enter the passenger compartment.
f Adapt the tire pressure to the load.
After you change the tire pressure, you must
also update the setting for Tire Pressure
Monitoring.
For information on setting Tire Pressure
Monitoring on the multi-function display:
f Please see the chapter “OVERVIEW OF
WARNING MESSAGES” on page 152.
Information on tire pressures for partially and fully
loaded vehicles can be found under “Technical
data” in this Owner’s Manual:
f Please see the chapter “TIRE PRESSURE FOR
COLD TIRES (68 °F/20 °C)” on page 326.