2010 PORSCHE BOXSTER S steering

32
Operation, Safety
Seat Adjustment and Head
Restraints
Warning!
The seat may move unexpectedly if you
attempt to adjust while driving. This could
cause sudden loss of control, resulting in se-
rious personal injury or death.
f Do not adjust seats while the vehicle is in mo-
tion.
The backrest locks must be engaged at all
times while the vehicle is in motion.
Safety belts only offer protection when the
backrest is upright and the belts are properly
positioned on the body.
Improperly positioned sa fety belts or safety
belts worn by passengers in an excessively
reclined position can cause serious personal
injury or death in an accident.
f Do not operate the car with the driver or
passenger backrests excessively reclined
(see “Seat position”).
Risk of injury if persons or animals are in the
movement range of the seat during seat
adjustment.
f Adjust the seat so that no-one is put at risk.
Caution!
Risk of damage to windshield, sun visor, etc.
when the seat is adjusted or folded back or
forward.
f Adjust the seat so that the s e a t b a c k re s t i s n o t in contact with any other object.
The driver and passenger seats provide
integrated head restraints in the backrests. The
head restraints are not adjustable. Warning!
All occupants, including the driver, should not
operate a vehicle or sit in a vehicle's seat until the
head restraints and backrests, respectively, are
placed in their proper posi tions so that the risk of
neck injuries is minimize d in the event of a crash.
For proper positioning of the head restraint, the
seatback's inclination should be adjusted such
that the head restraint is in an upright position.
Driver and passenger should be seated upright
and in the center of their seats.
Seat positionAn ergonomically correct sitting position is
important for safe and fatigue-free driving.
We recommend the following procedure for adjust-
ing the driver’s seat to suit individual
requirements:
1. Vehicles with manual transmission:
Adjust the seat until, with the clutch pedal fully
depressed, your leg remains at a slight angle.
Vehicles with Porsche Doppelkupplung
(PDK):
Adjust the seat until, with your left foot on the
footrest, your left leg remains at a slight angle.
2. Rest your outstretched arm on the steering wheel.
Set the backrest angle (not applicable for
Sports bucket seat) and the steering-wheel
position so that your wr ist rests on the outer
rim of the steering wheel. At the same time,
the shoulders must still be in noticeable
contact with the backrest.
3. Adjust the seat height (not applicable for
Sports bucket seat) to give yourself enough
headroom and a good overview of the vehicle.
4. Electrically adjustable seat: Adjust the seat angle until your thighs rest
lightly on the seat cushion.

38
Operation, Safety
Seat VentilationThe three-stage seat ventilation is ready for opera-
tion when the engine is running and from an
ambient cabin temperature of 58 °F (15 °C).
The three stages are controlled with the buttons
on the control panel for the air conditioning.
The blue light-emitting diodes in the buttons show
which stage is currently activated.
Note
The full effect of the seat ventilation can be
achieved only if you are wearing breathable
clothing.
Seat ventilation and seat heating can be used at
the same time and provide excellent seating
comfort when used in the right combination.
f Do not use protective seat covers.Switching on seat ventilationHigh ventilation
fPress button once.
Three light-emitting diodes light up.
Medium ventilation
f Press button twice.
Two light-emitting diodes light up.
A - Seat ventilation, left
B - Seat ventilation, rightLow ventilation
f Press button three times.
One light-emitting diode lights up.Switching off seat ventilationf Press button as often as necessary until all
light-emitting diodes go out.
Steering Wheel Adjustment
Warning!
Risk of accident.
The steering wheel may move further than
desired if you attempt to adjust it when
driving.
You can lose control of the vehicle, causing
serious personal injury or death.
f Do not adjust the steeri ng wheel when driving.

Operation, Safety
39
Adjusting steering wheel height and
longitudinal direction1. Insert ignition key fully into ignition lock.
2. Push the locking lever downwards.
3. Adjust steering wheel to fit the chosen backrest angle and your seat position by
moving the steering wheel up or down and
longitudinally.
4. Swivel locking lever back until you feel it en- gage.
If necessary, move steering wheel slightly lon-
gitudinally.
Steering Wheel HeatingThe steering wheel heatin g can be switched on
and off with the button on the rear of the steering
wheel when the ignition is switched on.
Switching on steering wheel heatingf Press button.
The message “Steering wheel heating ON”
is displayed on the on-board computer for
2seconds.Switching off steering wheel heatingfPress button.
The message “Steering wheel heating OFF”
is displayed on the on-board computer for
2seconds.

40
Operation, Safety
Multi-Functional Steering Wheel
Warning!
There is a danger of accident if you set or
operate the on-board computer, radio,
navigation system, telephone or other
equipment when driving.
Operating these devices while driving could
distract you from traffic and cause you to
lose control of the vehicle.
f Operate these components while driving only if
the traffic situation allows you to do so safely.
f Carry out any complicated operating or setting procedures only while the vehicle is stationary.
Depending on the equipment in your vehicle, you
can use the function keys of the multi-functional
steering wheel to operate the following Porsche
communication systems:
–PCM
– Telephone
– Radio with CD-Drive
–CD-Audio
Readiness for operation of multi-
functional steering wheelThe multi-functional steering wheel is ready for
operation when the ignition and PCM are switched
on.
Operating the function keysf Please read the separate PCM operating
instructions before operating the function
keys.
The rotary knobs at the top left and right of the
steering wheel can also be pressed.
Turn volume control
Upwards – increase volume.
Downwards – decrease volume.
Press volume control
To switch volume/mute on and off.
Turn rotary knob
To select/mark function in the PCM within
a menu. To do this, turn the rotary knob
upward or downward.
Press rotary knob
To activate selected function.
Press screen button
To call the stored PCM function.
The button can be assigned the desired
function in the PCM.
Press Back button
To move back in the PCM menu.
Press Handset Pickup button
To accept a telphone call.
Press Handset Hangup button
To end or refuse a telephone call.

44
Operation, Safety
Airbag SystemsThe airbags in combination with the safety belts
make up a safety system which offers the driver
and the passenger the greatest known protection
from injuries in case of accident.
Your vehicle is equipped with a weight sensing sys-
tem for the passenger's seat in accordance with
U.S. Federal Motor Vehicl e Safety Standard 208.
Even if your vehicle is equipped with airbags, the
safety belts must be worn at all times ,
because the front airbag system is only deployed
by frontal collisions with an impact of sufficient
severity.
Below the deployment threshold of the airbag sys-
tem, and during types of collisions which do not
cause the actuation of the system, the safety belts
provide the primary protection to the occupants
when correctly worn.
Therefore, all persons within the vehicle
must wear safety belts at all times (in many
states, state law requires the use of safety belts).
f Please see the chapter “SAFETY BELTS” on
Page 42.
The front airbags are located under the padded
steering wheel panel on the driver’s side and, on
the passenger's side, in the dashboard.
The side airbags are installed on the side in the
seat backrests.
The head airbags are installed in the door linings.
Danger!
To provide optimal occupant protection, air-
bags must inflate at very high speed. If you
are not wearing your safety belt or are too
close to the airbag when it is deployed, infla-
ting airbags can result in serious personal in-
jury or death.
f Make sure there are no people, animals or ob-
jects between the driver or passenger and the
area into which the airbag inflates.
f Sit back as far from the dashboard or steering
wheel as is practical, while still maintaining full
vehicle control.
f Always hold the steering wheel by the outer
rim. Never rest your hands on the airbag panel.
f Always fasten seat belts because triggering
of the airbag system depends on the force and
angle of impact.
f Do not transport heavy objects on or in front of
the passenger’s seat. These could impair the
function of the airbag , the seat belts, and
weight sensing.
f Do not hang objects (e.g . jackets, coats, coat
hangers) over the backrest. f
Always keep the lid of the door storage com-
partment closed. Objects must not protrude
out of the door storage compartment.
f No changes may be made to the wiring or
components of the airbag system.
f Do not add any additional coverings or stickers
to the steering wheel or in the area of the pas-
senger airbag, side airbags and head airbags.
Doing so may adversely affect the functioning
of the airbag system or cause harm to the oc-
cupants if the airbag system should deploy.
Do not use protective seat covers.
f Do not modify the seat coverings. Do not at-
tach additional cushions, protective coverings,
or pillows to the passenger's seat. Do not affix
things to the passenger's seat or cover it with
other materials. Do not cover the back of the
backrest. Do not make changes to the passen-
ger's seat and to the seat base frame.
f Do not undertake any wiri ng for electrical ac-
cessory equipment in the vicinity of the airbag
wiring harnesses. Doing so may disable the air-
bag system or cause inadvertent inflation.
f If the warning light co mes on, the airbag sys-
tem should be repaired immediately by your
authorized Porsche dealer.
f Always keep feet in the footwell while driving.
Do not put feet on the dashboard or the seat
area. Do not lean against the inside of the door
or outside the window while the vehicle is mov-
ing.

Operation, Safety
45
fUsing accessories not approved by Porsche
can cause the weight sensing system to be im-
paired.
f Do not squeeze objects, such as the fire extin-
guisher, or first aid kit under the seat.
f Only have seats removed and installed by an
authorized Porsche dealer so that weight sens-
ing components will not be damaged.
f Give your passenger all of the information in
this chapter.
Note
Airbag components (e.g. steering wheel, door lin-
ing, seats) may be disassembled only by an autho-
rized Porsche dealer.
When disposing of a used airbag unit, our safety
instructions must be followed. These instructions
can be obtained at any authorized Porsche dealer.
Function of the airbag systemAirbags are a supplemental safety system. Your
primary protection comes from your safety belts.
The front airbags are triggered during a frontal
collision of sufficient force and direction.
In the event of a side impact of corresponding
force, the side airbag on the impact side is
triggered.
The inflation process gene rates the amount of gas
required to fill the airbags at the necessary pres-
sure in fractions of a second.
Airbags help to protect the head and upper body,
while simultaneously damp ing the motion of the
driver and passenger in the impact direction in the
event of a frontal impact or side impact.
In order to help provide protection in severe colli-
sions which can cause death and serious injury,
airbags must inflate extremely rapidly. Such high
speed inflation has a negative but unavoidable
side effect, which is that it can and does cause in-
juries, including facial an d arm abrasions, bruising
and broken bones. You can help minimize such in-
juries by always wear ing your safety belts.
There are many types of accidents in which air-
bags are not expected to deploy. These include
accidents where the airbags would provide no be-
nefit, such as a rear impact against your vehicle.
Other accidents where the airbags are designed
not to deploy are those where the risk of injury
from the airbag deployment could exceed any pro-
tective benefits, such as in low speed accidents or higher speed accidents where the vehicle decele-
rates over a long time. Since airbag deployment
does not occur in all accidents, this further em-
phasizes the need for yo
u and your passenger to
always wear safety belts.
Your vehicle is equipped with a crash sensing and
diagnostic module. This module will record the
use of the seat belt restraint system by the driver
and passenger when the airbags and/or belt ten-
sioner work.
Advanced AirbagYour vehicle is equipped with a weight sensing sys-
tem for the passenger's seat in accordance with
U.S. Federal Motor Vehicle Safety Standard 208.
Depending on the weight acting on the passen-
ger's seat, the passenger's airbag will automati-
cally be switched on and off.
Depending on the angle and force of impact, the
passenger's airbag which is activated will be trig-
gered during a collision.
Precondition for switching the passenger's airbag
on and off, depending on weight:
– Vehicles equipped with key-operated airbag deactivation device:
Switch position AUTO.
– Ignition key is inserted.
Improper handling of the weight sensing system
can unintentionally impair switching the
passenger's airbag off and on.

Operation, Safety
59
ABS Brake System
(Antilock Brake System)The ABS system represents a major contribution
to the enhancement of active safety in your vehi-
cle. This system prevents the wheels from locking
in a panic stop on almost all road surfaces.
With the ABS system in your vehicle, the
following areas are enhanced:
Steering, vehicle remains steerable under all
braking forces when ABS is engaged.
Good directional control , no swerving caused
by locking of wheels under braking conditions.
Shorter stopping distance , stopping distances
are usually reduced because controlled braking is
maximized.
Prevention of wheel lock up , no brake- induced
sliding and thus no localized tire wear from emer-
gency braking.
The crucial advantage of the ABS system over a
conventional brake system is in the area of main-
taining directional control and maneuverability of
the car in emergency situations.
Warning!
The increased control that is provided should
not induce you to take greater risks with your
safety. The limits dictated by the laws of
physics cannot be overcome, even with ABS.
The risk of accidents due to inappropriate
speed cannot be reduced, even by the ABS.
The driver bears the responsibility for all
driving maneuvers.
f Adapt your driving style to the prevailing road
and weather conditions.
f Obey all traffic laws.
Other vehicles not equipped with the ABS
system may not be able to maintain control,
especially on wet or poor road surfaces and
thus may be more likely to impact you from
behind.
f To minimize that risk, use your ABS system to
increase your ability to maneuver to avoid dan-
gerous situations and not merely to try to stop in the shortest distance possible.
Operation of the ABS systemA wheel speed sensor is mounted to each of the
four wheels. If wheel lock -up of either of the front
wheels or the rear wheels is sensed during brak-
ing, the brake pressure is adjusted automatically
until the wheel no longer slips.
If braking forces approach the wheel lock-up point
for all wheels (panic brak ing) the ABS system will
intervene to provide a rapid rythmic braking. The
proper operation of ABS is perceived by the driver
as a pulsating brake pedal in conjunction with au-
dible noise and perhaps some vibration.
f If you experience these sensations while driv-
ing or a road surface with questionable trac-
tion, reduce vehicle speed appropriate for the
prevailing road conditions.
f If full braking should be necessary, press the
brake pedal all the wa y down throughout the
entire braking procedure, regardless of the pul-
sating pedal. Do not ease up on pressure ap-
plied to the pedal.
The functional readiness of all the main electrical
components of the ABS is checked by an
electronic monitoring system both before and
while you drive.

Operation, Safety
63
Porsche Stability Management
(PSM)PSM is an active control system for stabilization of
the vehicle approaching the performance limits of
driving maneuvers.
Warning!
Risk of an accident, resulting in serious per-
sonal injury or death.
The increased control that is provided should
not induce you to take greater risks with your
safety. The limits dictated by the laws of
physics cannot be overcome, even with PSM.
The risk of accidents due to inappropriate
speed cannot be reduced, even by PSM.
The driver bears the responsibility for all
driving maneuvers.
f Adapt your driving style to the prevailing road
and weather conditions.
fObey all traffic laws.
Sensors at the wheels, brakes, steering system
and engine continuously measure:
–Speed
– Direction of travel (steering angle)
– Lateral acceleration
– Rate of turn about the vertical axis
– Longitudinal acceleration PSM uses these values to determine the direction
of travel indicated by the driver.
PSM intervenes and helps to correct the course if
the actual direction of motion deviates from the
chosen course (steering-wheel position):
It brakes individual wheels as needed. In addition,
the engine power may be manipulated in order to
stabilize the vehicle.
The events below inform the driver of PSM control
operations and warn him/her to adapt his/her
driving style to the road conditions:
– The multifunctional in
formation light on the
instrument panel flashes.
– Hydraulic noises can be heard.
– The vehicle decelerate s and steering-wheel
forces are altered as the PSM controls the
brakes.
– Reduced engine power.
– The brake pedal pulsates and its position is changed during braking.
In order to achieve full vehicle deceleration,
foot pressure must be increased after the
brake pedal has begun vibrating.
Examples of PSM control operations– If the front wheels of the vehicle drift on a
bend, the rear wheel on the inside of the bend
is braked and the engine power is reduced if
necessary.
– If the rear of the vehicle swings out on a bend, the front wheel on the outside of the bend is
braked.Additional braking functions– Pre-filling the brake system:The brake system is prepared for possible
subsequent emergency braking if the acceler-
ator 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: In the event of an emergency braking operation
where the pedal force is insufficient, a brake
booster provides the braking pressure neces-
sary for maximum deceleration at all 4 wheels.Advantages of PSM– Best possible traction and lane-holding ability in all driving situations – even on road surfaces
with varying friction.