Speed PORSCHE CAYMAN 2010 1.G User Guide

Operation, Safety
43
An audio-visual warning system is interconnect-
ed with the driver ’s safety belt.
Every time the ignition is turned on, the gong will
sound for about 6 seconds to remind driver and
passenger to buckle up.
In addition, the gong will sound for approx. 90 sec-
onds if vehicle speed exceeds 15 mph/24 km/h.
The safety belt warning lights in the instrument
panel and on-board computer will go off as soon
as the driver has buckled up.
Inertia reel retractor The combination lap/shoulder belt with inertia reel
locking mechanism adjusts automatically to your
size and movements as long as the pull on the belt
is slow.
Rapid deceleration during hard braking or a colli-
sion locks the belt. The belt will also lock when you
drive up or down a steep hill or in a sharp curve,
otherwise, the shoulder belt will not inhibit your
upper body movement.Fastening the safety beltf Assume a comfortable sitting position.
f Please see the chapter “SEAT POSITION” on
Page 32.
f The shoulder belt should always rest on your
upper body. The shoulder belt should never be
worn behind your back or under your arm.
f Grasp belt and pull the belt in a continuous
slow motion across your chest and lap.
f Insert belt tongue into buckle on inboard side
of seat. Push down until it securely locks with
an audible click. Pull the belt to check.
f Pull shoulder section to make sure belt fits
snugly across the pelvis.
f Belts should fit snugly across the pelvis and
chest. Make sure there is no slack in the belt.
Releasing the safety beltf Push in release button (arrow ) on buckle. Belt
tongue will spring out of buckle.
f To release a latched belt, lean back to take the
body pressure off the belt.
f To store lap/shoulder belt, allow the belt to re-
tract as you guide the latch to its stowed posi-
tion.
f Please see the chapter “AUTOMATIC LOCKING
RETRACTOR” on Page 52.Cleaning the safety beltsIf it becomes necessary to clean the belts, you
can use any mild washing agent. Allow the belts to
dry prior to retracting, but avoid direct sunlight.
f Only use suitable cleaners. If unsuitable
cleaners are used or any attempt is made to
dye or bleach the belt s, the webbing may be
weakened and thus constitute a safety risk.
Safety Belt Warning System

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 unintentional ly impair switching
the passenger's airbag off and on.

56
Operation, Safety
The warning lights in the
instrument panel and on-
board computer will go out after the parking brake
is fully released.
The warning lights are not an indicator that the
parking brake is fully set; it is only intended to be
a warning to release the parking brake before
driving the car. Caution!
A partially engaged brake will overheat the
rear brakes, reduce their effectiveness and
cause excessive wear.
f Release the parking brake fully.
f When parking your car, always set the parking
brake by pulling all the way up on the lever.
f Move the selector lever to “P” (PDK) or move
the gearshift lever to reverse or first gear
(Manual transmission).
f On hills also turn the front wheels towards the
curb.
Brakes fMake it a habit to chec k the operation of your
brakes before driving.
Keep in mind that the braking distance increases
very rapidly as the speed increases. At 60 mph or
100 km/h, for example, it is not twice but four
times longer than 30 mph or 50 km/h. Tire trac-
tion is also less effective when the roads are wet
or slippery.
f Therefore, always maintain a safe distance
from the car in front of you.
Vehicles without Porsche Ceramic Compos-
ite Brake (PCCB)
Even though the brake discs consist of alloyed
grey cast iron, they will unavoidably start to cor-
rode if your car is parked for an extended period.
The brakes will tend to “rub” as a result.
The nature, extent and effects of corrosion de-
pend on the amount of time the vehicle was
parked, whether granular or liquid road salt was
spread and whether grease-dissolving agents
were used in car washes.
To prevent corrosion of the brake discs, ”brake
them dry“ before parking the car.
If the braking comfort is noticeably impaired, we
recommend having the brake system checked by
experts at an authorized Porsche dealer.
Brake system function Your Porsche is equipped with a power assisted
hydraulic dual circuit brake system with disc
brakes at the front and rear.
Both circuits function independently. One brake
circuit operates the front and the other operates
the rear.
If one brake circuit has failed, the other will still op-
erate. However, you will notice an increased pedal
travel when you apply the brakes.
Failure of one brake circuit will cause the stopping
distance to increase.
Warning!
Risk of an accident, resulting in serious per-
sonal injury or death.
In the unlikely event of hydraulic failure of
one brake circuit:
f Push the brake pedal down firmly and hold it in
that position.
A mechanical linkage activates the second cir-
cuit, and you will be able to bring the vehicle to
a stop.
f After bringing your vehicle to a complete stop,
avoid driving the vehicle and instead have it
towed to the nearest authorized Porsche deal-er for repair.
Parking brake warning light USA
Parking brake warning light
Canada

Operation, Safety
57
Brake system warning light
You can check the functionality of the brake
system warning light by switching the ignition to
the "On" position and verifying that the warning
light illuminates.
If the warning lights in the instrument panel and on-
board computer go on while driving, the brake flu-
id level may be too low, or (if the brake pedal travel
has increased) one of the two brake circuits may
have failed.
A greater braking pressure will be required, stop-
ping distances will be longer and the braking be-
havior will change, particularly in curves.
With correctly adjusted brakes, and a correctly
working brake system, the pedal travel to the
point of brake actuation should be 1-3/16 in. to
1-9/16 in. or 30 to 40 mm.
Whenever the brake pedal travel exceeds this dis-
tance, have the brake system checked.
Brake pedal
Warning!
Risk of an accident, re sulting in serious per-
sonal 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 ob-
structed by a floor ma t 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 nonskid floor mats of the correct size.
Note
In case one of the two brake circuits fails, in-
creased 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 or driving position 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 get hot and not function properly.
f Please see the chapter “DRIVE-OFF ASSIS-
TANT” on Page 177.
Brake warning light USA
Brake warning light Canada

58
Operation, Safety
Brake booster The brake booster assists braking only when
the engine is running.
When the car is moving while the engine is not run-
ning, or if the brake boos ter is defective, more
pressure on the brake pedal is required to bring
the car to a stop.
If this happens, ABS and PSM will also not oper-
ate.
Moisture or road salt on brakes affects braking.
Brakes will dry after a fe w cautious brake applica-
tions.
Warning!
Risk of an accident, resulting in serious per-
sonal injury or death.
Driving through water may reduce the trac-
tion.
Moisture on brakes from road water, car
wash, or coating of road salt may affect
braking efficiency.
f Cautiously apply brakes to test brakes after ex-posure to road water, etc.
Brake wear Your car has excellent brakes, but they are still
subject to wear. The rate at which they wear de-
pends 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 and verifying that the warning
light illuminates.
If the warning lights in the instrument panel and on-
board computer stay on when the engine is run-
ning or come on while driv ing, 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.
Brake pads and brake discsWear on the brake pads and brake discs depends
to a great extent on the driving style and the con-
ditions 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 tem-
peratures.
Certain speeds, braking forces and ambient
conditions (such as temperature and humidity)
therefore might cause “brake noises”.
New brake pads or linings
New brake pads and brake discs have to be “bro-
ken in”, and therefore only attain optimal friction
when the car has covered several hundred miles
or km.
The slightly reduced braking ability must be com-
pensated for by pressing the brake pedal harder.
This also applies whenever the brake pads and
brake discs are replaced.
Warning light USA
Warning light Canada

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.

60
Operation, Safety
When the ignition is switched on the ABS warning
light will light up while the system is electronically
interrogated and goes o
ut when the engine is
started if the check is not yet complete.
If the ABS warning lamp fails to go out, this indi-
cates that ABS has been deactivated due to a
fault. If the warning lights in the instrument panel
and on-board computer light up while you are driv-
ing, this indicates that a fault has occurred. In both
cases, normal braking, as in vehicles without ABS,
is still retained.
The ABS system should, however, be examined at
an authorized Porsche dealer immediately to pre-
vent the occurrence of further faults.
f If the ABS system becomes inoperative, take
your vehicle to your authorized Porsche dealer
immediately.
Warning!
Risk of an accident, resulting in serious per-
sonal injury or death.
The control unit of the ABS brake system is
set for standard tire size. If non-standard
tires are installed, the control unit may mis-
interpret the speed of th e vehicle, because of
the variant data it rece ives from the sensors
on the axles.
f Use only tire makes and types tested by Porsche.
Clutch Pedal The clutch pedal must be depressed fully
before the starter will engage.
Warning!
Risk of an accident, resulting in serious per-
sonal injury or death.
f Always check the movement of the clutch ped-
al 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
nonskid floor mats of the correct size.
To avoid damage to the clutch and transmis-
sion:
f Always depress the clutch pedal fully when
changing gears.
f Do not hold the car on a steep grade with the clutch pedal partially depressed.
Should the free travel of the clutch pedal suddenly
become larger, it could me an a malfunction of the
clutch.
f See your Porsche dealer for correction.
Warning light USA
Warning light Canada

Operation, Safety
61
Sport ModeA sportier car set-up is obtained when Sport mode
is switched on. Interventions by the Porsche
control systems are intentionally shifted towards
greater agility and driving performance:
– PASM (Porsche Active Suspension Manage-ment) is automatically changed to Sport mode,
resulting in a stiffer suspension setup.
– When Sport mode is active, the PDK transmis- sion switches to a sporty gear-changing map
and shortens the gear shifting times. Gear
changes take place faster, but fuel consump-
tion is also increased.
PSM (Porsche Stability Management) control
gives a sportier road-feel to the vehicle. PSM
interventions take place later than in Normal
mode. The driver can maneuver the vehicle
with greater agility at its performance limits,
without having to dispense with the assistance
of PSM in emergency situations. This helps to
achieve optimal lap times, particularly on race
circuits with a dry road surface.
– The electronic accelerator pedal reacts sooner, and the engine is more responsive to
throttle inputs. When Sport mode is switched
on, this function is ac tivated only after the
driver has floored the accelerator pedal or
released it briefly.
– The rpm limiter characteristic is “harder”, i.e. the engine is immediately throttled when the
performance limits are reached (only in manual selection mode for vehicles with PDK transmis-
sion).
f Please observe the chap ters on PSM, PASM
and PDK.
Switching Sport mode on and offSwitching Sport mode on and off simultaneously
activates and deactivate s the Sport mode in
PA S M .
If PASM Sport mode was activated with the PASM
button, PASM remains active.
After the ignition is switched off, Sport mode is
automatically reset to Normal mode.
SPORT button
f Press SPORT button A in the center console.
When Sport mode is switched on, the light-
emitting diode in the SPORT button is lit.
A sporty gear-changing map is enabled and the
gear shifting times ar e shortened for the PDK
transmission.
A sporty driving style is recognized more quickly
and the gear-changing speeds are adapted to
driving performance.
Deceleration downshifts are commenced earlier.
Downshifts are made during slight decelerations,
even at higher engine speeds.
f Please see the chapter “SPORT MODE
(“SPORT” AND “SPORT PLUS” MODES)” on
Page 180. SPORT PLUS button
(only on vehicles with PDK transmission)
In “Sport Plus” mode, the PDK transmission
changes to a shift program designed for driving
on race circuits. 7th gear is not selected.
The gear-changing performance is enhanced
significantly again compared with “Sport” mode.
f
Please see the chapter “SPORT MODE
(“SPORT” AND “SPORT PLUS” MODES)” on
Page 180.
f Press SPORT PLUS button B in the center
console.
When Sport mode is switched on, the light-
emitting diode in the SP ORT PLUS button is lit.

62
Operation, Safety
When mode “Sport” is switched on, the logo
SPORT appears next to the digital speedometer.
When mode “Sport Plus” is switched on, the logo
SPORT PLUS appears next to the digital
speedometer.