2009 PORSCHE PANAMERA ignition

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Driving and Driving Safety
f
Do not warm up the engine when stationary.
Drive off immediately. Avoid high revs and full
throttle until the engine has reached operating
temperature.
f If the vehicle battery power is too weak, the
engine can be started with jump leads.
For information on jump-lead starting:
f Please see the chapter “EXTERNAL POWER
SUPPLY, JUMP-LEAD STARTING” on
page 306.
Note on operation
To ensure a good battery charge condition,
thereby ensuring that the battery will start the
engine, all electrical loads that are not required
should be switched off when the ignition is
switched on and when engine revs are low
(in traffic jams, in city traffic or in queues).
Stoppingf Only remove the ignition key when the vehicle
is stationary.
f Only switch the ignition off when the vehicle is
stationary, as there is no power steering and
brake booster assistance when the engine is
switched off.
f When leaving the vehicle, always remove the
ignition key, apply the electric parking brake
and engage selector-lever position P .
The control unit always remains in the ignition
lock on vehicles with Porsche Entry & Drive .
Warning!
Danger of injury. Hot engine compartment
components can burn skin on contact.
f Before working on any part in the engine
compartment, turn the engine off and let it cool
down sufficiently.
Risk of burn injury when standing near or
coming into contact with the exhaust pipe.
The exhaust pipe is hot wh en the vehicle is running
and remains hot for some time after the vehicle is
turned off. f
To prevent injury, make a point of noting where
your vehicle’s exhaust pipe is, avoid placing
your legs near the exhaust pipe when loading
and unloading cargo in the rear, and closely
supervise children around the vehicle during
time when the exhaust pipe could be hot.
A hot exhaust pipe can cause painful skin
burns.
Radiator fanFor information on radiator fans:
f Please see the chapter “RADIATOR FANS” on
page 258.
Warning!
Danger of injury. After the ignition is
switched off, the engine compartment and
coolant temperatures are monitored for
approx. 30 minutes. During this period, and
depending on temperature, the radiator fan
may continue to run or start to run.
f Carry out work in these areas only with the
engine off and exercise extreme caution,
always anticipating that the fan blade could suddenly start to run.

Driving and Driving Safety
169
Auto Start Stop FunctionThe engine stops automatically when the vehicle is
stopped, e.g. at traffic lights or in a traffic jam.
The Auto Start Stop function thus helps to
save fuel.
The ignition stays on even when the engine
switches off automatically. All safety functions
are still available.Stopping the engineThe Auto Start Stop function stops the engine
as soon as the vehicle stops moving.
1. Use the footbrake to hold the vehicle in place.
2. Keep the footbrake pressed.or
Move PDK selector lever to position P.
Preconditions for stopping the engine
– Engine compartment lid closed.
– Driver detected: driver’s seat belt fastened and driver’s door closed.
– PDK selector lever in position D, N or P or
transmission range 1 or 2 selected manually.
– Engine, transmission and battery are at operating temperature.
– Vehicle was driven at a speed of more than approx. 1 mph (2 km/h) for at least
1.5 seconds since the engine last stopped
automatically.
Starting the engineThe Auto Start Stop func tion starts the engine:
f In PDK selector-lever position D, N or manually
selected transmission range 1 or 2:
Release the footbrake.
or
Press the accelerator.
or
f Move PDK selector lever to position R.
You can drive off normally.
Note
The engine will start automatically in certain
situations, e.g. if the vehicle starts rolling, if air
conditioning causes reduced comfort, or if the
brake booster vacuum is reduced.
Starting the engine manually after leaving
the vehicle
If the driver’s seat belt is unbuckled or the driver’s
door is opened after the engine was stopped
automatically, the engine will not start
automatically.
Furthermore, if the brake is released, the engine
has to be started manually.
The message “Please start engine manually”
will appear on the multi-function display in the
instrument panel.
f Please see the chapter “OVERVIEW OF
WARNING MESSAGES” on page 152.
Exceptions for the Auto Start Stop
functionThe Auto Start Stop function is not available in the
following situations, for example:
– When Sport mode is activated.
– When PSM is off.
– In Maneuvering mode.
– When AC MAX mode is activated.
– When the “Windshield defrost” function is active.
– While adjusting the chassis level.
– When the rear fog light is on.
The Auto Start Stop fu nction is available with
limited functionality in the following situations,
for example:
– If the air conditioning or passenger compartment heating is operated at a high
setting or if the defrost function is run for long
time periods.
– If the battery charging condition is low.
– On upward or downward slopes.
– During internal vehicle test procedures, e.g. automatic engine checks.
Note
If one of these situations arises after the engine
has stopped automatically, the engine can be
restarted automatically.

Driving and Driving Safety
171
Electric Parking BrakeThe electric parking brake acts on the rear wheels
and serves to secure the vehicle while parked.Applying the parking brakefPress switch .
The brake warning light on the instrument
panel lights up.
For information on indi cator lights and warning
lights on the instrument panel:
f Please see the chapter “INSTRUMENT PANEL
USA MODELS” on page 107.
Releasing the parking brakeThe electric parking brake can only be released
when the ignition is switched on.
1. Press the brake pedal.
2. Pull switch .
The brake warning light on the instrument
panel goes out.Automatic electric parking brake release
when driver’s intention to drive off is
detectedIf the engine is running, the driver’s door is closed
and the driver’s seat belt is fastened, it is still
possible to drive off even though the parking
brake is on. The electric parking brake detects
the driver’s intention to drive off and releases
automatically. The warning light on the instrument
panel goes out.
If the driver’s door is not closed or the driver’s
seat belt is not fastened, the electric parking
brake will not be released automatically when the
driver attempts to drive off.
The message “Release electric parking brake”
appears on the multi-function display in the
instrument panel. The brake warning light on the
instrument panel and the indicator light on the
switch start to flash.
For information on warning messages on the
multi-function display:
fPlease see the chapter “OVERVIEW OF
WARNING MESSAGES” on page 152.
Emergency braking functionIf the conventional brak e system has failed, the
vehicle can be decelerated quickly and braked to
a stop using the electric parking brake.
f Press switch and keep it pressed.
The brake warning light on the instrument
panel and the indicator light on the switch
start to flash. The messa ge “Emergency brake
function” appears on the multi-function display.
The emergency braking function is deactivated
when you release the switch.
Safety instruction!
Severe braking. Emergency braking takes
place with very high braking power.
f Only use the emergency braking function in an
emergency situation.
f Do not use the emergency braking function to stop the vehicle when driving normally.

Driving and Driving Safety
173
Brake system warning light
You can check the functionality of the brake
system warning light by switching the ignition to
the “On” position (position 1) and verifying that the
warning light illuminates.
The warning light in the instrument panel lights up.
A message will be displayed on the multi-function
display of the instrument panel if the brake fluid
level is too low, or (if the brake pedal travel has
increased) one of the two brake circuits has failed.
A greater braking pressure will be required,
stopping distances will be longer and the braking
behavior will change, particularly in curves.
With correctly adjusted brakes and a correctly
working brake system, the pedal travel to the
point of brake application should be 1-3/16 in. to
1-9/16 in. (30 to 40 mm). Whenever the brake
pedal travel exceeds this value, have the brake
system checked.
Brake pedal
Warning!
Risk of an accident, resulting in serious
personal injury or death.
Any obstruction of the brake pedal could
increase the stopping distance.
f Always check the movement of the brake pedal
before driving and make sure that it is not
obstructed by a floor mat or any other object.
f Secure the floor mat to prevent it from sliding
into positions that could interfere with the safe
operation of your vehicle.
Your Porsche dealer will be glad to offer you
floor mats of the correct size including a securing possibility.
Note
In case one of the two brake circuits fails,
increased pedal travel is required to bring your
vehicle to a full stop.
Warning!
To avoid overheating and premature wear of
the brakes:
f Before descending a steep grade, reduce
speed and shift the tran smission into a lower
gear to control speed.
f Do not “ride the brakes” by resting your foot on
the pedal when not intending to apply brake
pressure.
f Do not hold the pedal down too long or too
often. This could cause the brakes to overheat and not function properly.
Brake warning light USA
Brake warning light Canada

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Driving and Driving Safety
Brake boosterThe brake booster assists braking only when
the engine is running.
When the car is moving while the engine is not
running, or if the brake booster is defective, more
pressure on the brake pedal is required to bring
the car to a stop.
Moisture, road salt or grit on brakes affects
braking.
Brakes will dry after a few cautious brake
applications.
Warning!
Risk of an accident, resulting in serious
personal injury or death.
Driving through water may reduce the
traction. Moisture on brakes from road
water, car wash, or a coating of road salt or
grit may affect braking efficiency.
f Cautiously apply brakes to test brakes after exposure to road water, etc.
Brake wearYour car has excellent brakes, but they are still
subject to wear. The rate at which they wear
depends on how the brakes are used.
f Have the brake system inspected at the
intervals recommended in your Maintenance
Booklet.
Brake system warning light
You can check the functionality of the brake
system warning light by switching the ignition to
the “On” position (position 1) and verifying that the
warning light illuminates.
A warning message will be displayed on the multi-
function display of the instrument panel if the
brake pads are worn, excessively.
f Do not continue to operate the vehicle.
Have your authorized Porsche dealer inspect
or replace the brake pads.
For information on warning messages on the
multi-function display:
f Please see the chapter “OVERVIEW OF
WARNING MESSAGES” on page 152.
Brake pads and brake discsWear on the brake pads and brake discs depends
to a great extent on the driving style and the
conditions of use and therefore cannot be
expressed in actual miles on the road.
The high-performance brake system is designed
for optimal braking effect at all speeds and
temperatures.
Certain speeds, braking forces and ambient
conditions (e.g. temperature and humidity) can
therefore cause the brakes to “squeal”.
New brake pads or linings
New brake pads have to be “broken in”, and
therefore only attain optimal friction when the car
has covered several hundred miles or km.
The slightly reduced braking ability must be
compensated for by pressing the brake pedal
harder. This applies whenever the brake pads
and/or brake discs are replaced.
Brake wear warning message

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Driving and Driving Safety
Resuming the stored speed – RESUMEfPress the control stalk up (position 4).
Cruise control accelerates/decelerates the
vehicle to the stored speed.
Note on operation
The stored speed should on ly be recalled if traffic
and road conditions are conducive to driving at
that speed.Switching cruise control readiness offf 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.
Tip on driving
On upward or downward slopes, the set speed
cannot always be maintained by cruise control.
f To obtain sufficient engine braking or a better
rev range, you therefore have to change down
to a lower gear.
Adaptive Cruise ControlAdaptive cruise control maintains any selected
speed between approx. 20–100 mph
(30–160 km/h) when driving on open roads
without you having to use the accelerator.
If a vehicle travelling ahead of you in the same lane
is detected as driving slower than the selected
speed, adaptive cruise control will automatically
maintain a set distance fr om the vehicle in front.
Adaptive cruise control slows your vehicle down if
the distance to the vehicle ahead becomes too
short and accelerates your vehicle if the distance
increases.
Warning!
Risk of accidents in heavy traffic, in city
traffic, on twisting roads or in unfavorable
road conditions (e.g. wintry or wet conditions
or varying road surfaces, etc.).
f Do not use adaptive cruise control under these
conditions.
Adaptive cruise control will not detect
stationary or slowly moving vehicles,
pedestrians, objects on the road, oncoming
vehicles in the same lane or cross traffic.
f You must pay attention to your vehicle’s
position in relation to other objects and
intervene as needed to ensure safe driving.
f Always keep the direction of travel in your field of view.
Radar sensorAdaptive cruise control uses a radar sensor
located in the middle of the front apron.
Maintenance note
fAlways keep the radar sensor clean and free of
ice and snow to ensure tha t it is fully functional.
For car care instructions:
f Please see the chapter “CAR CARE
INSTRUCTIONS” on page 269.

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Driving and Driving Safety
Exceptions for adaptive cruise control
Adaptive cruise control is
not available in the
following situations:
– If the ignition is switched off.
– When PSM is off.
– If the driver’s door is opened and the driver’s seat belt is not fastened.
– When parking or maneuvering in very tight spaces.
– If the PDK selector lever is at position N, R or
P .
– On upward or downward slopes of more than 20 %.
– When the electric parking brake is activated.
If one of these exception situations occurs when
adaptive cruise control is switched on, adaptive
cruise control will be switched off.
A message to this effect will appear on the
multi-function display. Messages on the multi-function display
If adaptive cruise control was deactivated
automatically or if an action cannot be performed,
a message to this effect in blue appears on the
multi-function display.
–“
ACC not available! ”
Adaptive cruise control is not available,
e.g. when maneuvering.
–“ ABS/PSM intervention!”
Adaptive cruise control was deactivated
because ABS or PSM intervened as a control
mechanism.
–“ Electric parking brake! ”
Adaptive cruise control was deactivated
because the electric parking brake was
activated.
–“ Selector position!”
Adaptive cruise control was deactivated
because the PDK select or lever is not in
position D or manual position M.
–“ Impossible while parked ”
The required action is not possible because
your vehicle is stationary, e.g. when setting
a desired speed.
–“ Speed! ”
Adaptive cruise control was deactivated
because the rpm limit of the engine was
reached in manual position M of the PDK
selector lever. –“
Gradient too steep! ”
The desired distance or the desired speed
cannot be set because the gradient on the
road is too steep.
–“ Stationary object ”
The action is not possi ble because a stationary
object was detected ahead.
–“ PSM off! ”
Adaptive cruise control is not available
because PSM was switched off.
For information on Porsche Stability
Management (PSM):
f Please see the chapter “PORSCHE STABILITY
MANAGEMENT (PSM)” on page 202.
General information“Sport” and “Sport Plus” mode
Adaptive cruise control regulates your driving
more dynamically in “Sport” and “Sport Plus”
mode.

Driving and Driving Safety
193
Porsche Doppelkupplung (PDK)Porsche Doppelkupplung (PDK) is a seven-speed
transmission with an “automatic” and a “manual”
selection mode.
In automatic selection mode (selector-lever
position D), gear changing is automatic.
You can change temporarily from automatic to
manual mode using the shift buttons on the
steering wheel.
In manual selection mode (selector-lever
position M ), you change gear using the shift
buttons on the steering wheel or with the PDK
selector lever.
You can change between selector-lever
positions D and M as you wish while driving.
Note
f Take care not to operate the shift buttons on
the steering wheel in advertently in either
automatic or manual mode, thereby triggering
undesired gear changes.
Changing the selector-lever positionThe selector lever is blocked when the ignition is
switched off.
When the ignition is switch ed on, the selector lever
can be moved from position P and N only when
the release button is pressed, and when the brake
pedal is pressed.
Release button
The release button ( arrow) in the selector lever
prevents the gear from being changed
unintentionally.
The release button must be pressed when shifting
to position R or P.
StartingThe engine can only be started using the car key
if the brake pedal is pressed and the selector lever
is in position P or N.Driving offf Only select the desired position for driving off
(D, M or R) when the engine is idling and the
brake pedal is pressed.
f Since the vehicle crawls when in gear,
do not release the brake until you are ready
to drive off.
Driving off on hills
The Drive-Off Assistant assists the driver when
driving off on hills. The vehicle is held on the slope
when the driver changes from the brake pedal to
the accelerator to facilitate driving off immediately
after the brake is released.
f Please see the chapter “HOLD FUNCTION:
DRIVE-OFF ASSISTANT AND STANDSTILL
MANAGEMENT” on page 206.