
Driving and Driving Safety 181
Porsche Stability Management
(PSM)
PSM is an active control system for stabilization of the vehicle during extreme driving maneuvers.
PSM makes use of both the automatic brake differential (ABD) and anti-slip regulation (ASR) systems, as well as the functions of the anti-lock brake system (ABS) and engine drag torque control system (MSR).
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.
Advantages of PSM
– Best possible traction and lane-holding ability in all driving situations – even on road surfaces with varying friction.– The system compensates for undesired vehicle reactions (Ferraria effect) when the driver releases the accelerator pedal or brakes on bends. This compensation functions up to the maximum lateral acceleration.– PSM actively helps to stabilize the vehicle if necessary during dynamic driving maneuvers (e.g. rapid steering movements, during lane changes, or on alternating bends).
– Improved braking stability on bends and on different or varying road surfaces.– Improved brake function and shorter stopping distance in the event of emergency braking.
Readiness for operation
PSM is switched on automatically every time you start the engine.
Function
Sensors at the wheels, brakes, steering system and engine continuously measure:– Speed– Direction of travel (steering angle)– Lateral acceleration– Axial acceleration– Rate of turn about the vertical axis
PSM uses these values to determine the direction of travel desired by the driver.PSM intervenes and corrects the course if the actual direction of motion deviates from the desired course (steering-wheel position):It brakes individual wheels as required. If necessary, PSM also influences the engine power or the gear-changing characteristic of Porsche Doppelkupplung (PDK) in order to stabilize the vehicle.
The events below inform the driver of PSM control operations and warn him to adapt his driving style to the road conditions:– PSM warning light on the instrument panel flashes.– Hydraulic noises can be heard.– The vehicle decelerates and steering-wheel forces are altered as 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 engine power is reduced and the rear wheel on the inside of the bend is braked if necessary.– If the rear of the vehicle swings out on a bend, the front wheel on the outside of the bend is braked.– 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 disks.– 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 4 wheels.
Loss of control over the vehicleWARNINGh
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Driving and Driving Safety 183
When PSM is switched off, PSM support is no longer provided in critical driving situations outside the ABS control range. fPSM should always be switched on during “normal” driving.
However, it may be a good idea to switch off PSM temporarily in exceptional situations:– On a loose surface and in deep snow.– When “rocking the vehicle free”.
Information
The vehicle retains its enhanced braking readiness through prefilling of the brake system even when PSM is switched off.
When PSM is switched off, wheel-specific brake interventions and the anti-slip control system (ASR) are also switched off.The automatic brake differential (ABD) remains on.
Switching PSM back on
fPress button . PSM is active immediately.The indicator light on the button and the PSM OFF warning light on the instrument panel go out.The message “ PSM on” appears on the multi-function display in the instrument panel.
“Sport Plus” mode
A sportier setup is obtained when “ Sport Plus” mode is switched on.PSM interventions occur later than in Normal mode. The vehicle can be maneuvered 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 and on a dry road surface.
PSM warning light
– The PSM warning light on the instrument panel lights up for a lamp check when the ignition is switched on.– The light indicates a control operation, even when PSM is switched off, e.g. brake control in the event of one-sided wheel spin.– The light – in conjunction with the multi-function display – indicates a fault.The warning message “ PSM failure Consult a workshop Adapted driving permitted ” appears on the multi-function display in the instrument panel.
For information on warning messages on the multi-function display:fPlease see the chapter “OVERVIEW OF WARNING AND INFORMATION MESSAGES” on page 129.fAdapt your driving style according to the changed conditions.fContact an authorized Porsche dealer.
Towing
For information on towing:fPlease see the chapter “TOWING” on page 278.
No PSM assistanceWARNINGh
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188 Driving and Driving Safety
Dynamic Engine Mounting (PADM)
On vehicles with Sport Chrono package
Dynamic Engine Mounting with variable damping is a system designed to enhance both driving dynamics and driving comfort. Depending on the driving situation, the ideal mounting rigidity and damping is automatically set in the range between an rigid engine-to-body connection (increase in driving dynamics) and decoupling of the engine from the body (increase in driving comfort).
“Sport” mode
When “ Sport” mode is switched on, a more rigid engine-to-body connection is achieved for a sporty driving style.
“Sport Plus” mode
When “ Sport Plus” mode is switched on, an optimal engine-to-body connection is achieved for driving on race circuits.
Warning message
Dynamic engine mounting faults are indicated by a warning message on the multi-function display.fPlease see the chapter “OVERVIEW OF WARNING AND INFORMATION MESSAGES” on page 129.
“Sport” and “Sport Plus” mode
The selectable chassis settings mean that the vehicle can offer various modes for a sportier overall setup.The “ Sport” mode pushes the control systems more in the direction of greater emotionality and performance during every day driving.
In “ Sport Plus” mode, maximum performance is set for race-circuit-like driving:– In “ Sport Plus” mode: PASM (Porsche Active Suspension Management) is automatically changed to “ Chassis Normal” or “Chassis Sport” mode. – In “ Sport Plus” mode: Like PASM, PDCC is switched to the corresponding “ Sport” mode, whereby the rolling movements of the vehicle are reduced further, depending on the selected mode.– The PDK transmission switches to a sporty gear-changing map and shortens the gear shifting times when Sport mode is activated. Gear changes take place faster.– The electronic accelerator pedal reacts sooner, and the engine is more responsive to throttle inputs. When Sport mode is switched on and the vehicle is traveling at a speed of less than 40 km/h (25 mph), this function is activated only after the driver has floored the accelerator pedal or released it briefly.– The rpm limiter characteristic is “harder”. In other words: the engine is immediately throttled when the performance limits are reached (only in manual selection mode on vehicles with PDK).
– PSM (Porsche Stability Management) control is more sporty in “ Sport Plus” mode. PSM interventions are 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.– PADM changes to more sporty maps for the dynamic engine mountings to achieve a stiffer engine-to-body connection.In “ Sport” for a sporty driving style, in “ Sport Plus” mode for race-circuit-like driving. – PTV Plus changes to a more dynamic map when “ Sport Plus” is switched on. – The dynamic cornering light reacts more spontaneously to steering angle changes.– The sports exhaust system is be switched to a sound-optimized mode, but can be switched off separately via the button.The Auto Start Stop function and coasting mode are deactivated.fPlease read the relevant chapters.
Overboost function
On vehicles with Sport Chrono package
When “ Sport” or “Sport Plus” mode is switched on and the accelerator is fully pressed, the boost pressure is temporarily increased by approx. 2 psi (0.15 bar) in the medium engine-speed range and the maximum torque increases.
For information on the torque display:fPlease see the chapter “PERFORMANCE MENU” on page 116.
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Driving and Driving Safety 189
Switching “Sport” mode on and off
fPress button . When “ Sport” mode is switched on, the indicator light on the button lights up.The word “ SPORT” appears on the digital speedometer or on the steering wheel, depending on vehicle equipment.
A sporty gear-changing map is enabled and the gear shifting times are shorter for the PDK transmission.
A sporty driving style is recognized more quickly and the gear-changing speeds are adapted to driving performance.
Braking downshifts are initiated earlier. Downshifts occur for small decelerations, even at higher revs.
Switching “Sport Plus” mode on and off
fPress button .When “ Sport Plus” mode is switched on, the indicator light on the button lights up.The words “ SPORT PLUS” appear on the digital speedometer or on the steering wheel, depending on vehicle equipment.
In “ Sport Plus” mode, the PDK transmission changes to a shift program designed for driving on race circuits. 7th gear is not selected.
“Sport Plus” and “PASM Chassis Sport” modes
Switching “ Sport Plus” mode on and off simultaneously activates and deactivates the “ PASM Sport” mode. Switching “ Sport” mode has no influence on the PASM mode.
The PASM mode can be switched manually if you want to use the characteristics of “ Sport” or “ Sport Plus” mode, but prefer a more comfortable chassis setup.fPress button (repeatedly).The indicator light for the selected chassis setup on the button lights up.fPlease see the chapter “PORSCHE ACTIVE SUSPENSION MANAGEMENT (PASM)” on page 185.
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200 Storage, Luggage Compartment and Roof Transport System
Roof Transport System
A roof transport system can be fitted on the vehicle for transporting various sports and hobby equipment.
Various objects can be transported safely and securely using the roof transport system and additional attachments, e.g. ski rack, bicycle rack, surfboard rack, roof box or snowboard holder.fOnly use roof transport systems that have been tested and approved by Porsche. It is not possible to fit commercially available roof rack systems.
fInstall individual load-carrying devices, such as ski rack or roof box as centrally as possible with respect to the supports.fDo not exceed the permissible roof load, permissible gross weight and permissible axle loads.Details of these weights and loads can be found under “Technical data” in this Owner’s Manual:Please see the chapter “WEIGHTS” on page 288.fDistribute load evenly, with heavy items as low as possible. Items of luggage must not project beyond the side of the load area.fFix and secure every item to the basic carrier with a rope or lashing strap (do not use elastic rubber tensioners).fBefore every trip, and at regular intervals during long trips, check that the Roof Transport System and load are secure. Re-tighten if necessary and secure further by locking. Tighten all fastening screws again.
When the Roof Transport System is loaded, the maximum speeds depends on the nature, size and weight of the load being carried.fDriving, braking and steering behavior change due to the higher center of gravity and the greater wind resistance. You should adapt your driving style accordingly.Nevertheless, Porsche recommends that you do not exceed the posted speed limit.fNever drive faster than 80 mph (130 km/h) when the Roof Transport System is fitted and loaded.fWith the basic carrier fitted and no load, do not exceed a maximum speed of 110 mph (180 km/h).
Washing the vehicle in a car wash or failure to observe the overall vehicle height or the maximum permitted gross weight can damage the vehicle or roof transport system.fRemove the complete roof transport system before washing the vehicle in a car wash.fCheck the overall vehicle height with the roof transport system fitted before driving into multi-storey car parks, garages, underground garages and tunnels.fDo not exceed the permissible roof load, permissible gross weight and permissible axle loads.Details of these weights and loads can be found under “Technical data” in this Owner’s Manual:Please see the chapter “WEIGHTS” on page 288.
A - Front carrier (long) B - Rear carrier (short) C - Cover trims D - Torque wrench E - Key
Fitting the roof transport system
When fitting the roof transport system for the first time, the front and rear carrier must be adjusted according to the width of the vehicle.
Roof Load InstabilityWARNINGh
NOTICE
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210 Parking
Swivelling Down Mirror Glass as
Parking Aid
When reverse gear is engaged, the mirror on the passenger’s side swivels down slightly to show the curb area.
Preconditions
– The ignition must be switched on. – The function must be activated on the multi-function display.
For further information on setting the parking aid:fPlease see the chapter “ADJUSTING REVERSING OPTIONS” on page 122.
Swivelling down mirror glass manually
If the function was deactivated on the multi-function display, the exterior mirror on the passenger’s side can also be swiveled down manually.1. Engage reverse gear. The indicator light B on the selection button A for adjusting the exterior mirror on the driver’s side lights up.2. Press the selection button D for adjusting the exterior mirror on the passenger’s side.The mirror on the passenger’s side swivels down.
Information
The position of the automatically lowered mirror glass can be changed as required using the adjustment button C. On vehicles with memory package, the setting is stored on the car key or the person buttons on the driver’s side.
Moving mirror to its initial position
The mirror swivels back to its initial position: – after a certain time delay, if the vehicle is shifted out of reverse gear, or – immediately, if the vehicle reaches a speed of more than 9 mph (15 km/h).
The exterior mirror on the passenger’s side can also be moved to its initial position manually.fPress the selection button A for the exterior mirror on the driver’s side.
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Parking 213
In front of the vehicle: 5. Hold the original remote control approx. 8 in. (20 cm) away from the marked position ( illustration) and press and hold the transmit button (for more than approx. 1 minute in some cases) until the vehicle’s turn signal lights flash on and off three times or the indicator light A on the overhead operating console starts flashing quickly.The turn signal lights flash three times and the indicator light A flashes quickly to confirm that the new signal has been programmed successfully.Several attempts with different distances between the vehicle and the original remote control may be necessary.With some systems, the transmit button on the original remote control may need to be pressed again when the indicator light on the original remote control goes out.
6. The turn signal lights will flash once when the 5 minute teaching readiness period has elapsed.Repeat steps 3 to 5.7. Repeat steps 3 to 5 to assign further signals to the remaining buttons.
Assigning garage door opener signal to button with changeable code system
With some systems, a changeable code also needs to be programmed for the HomeLink® system. A second person makes programming easier.
Identifying the changeable code
fPress and hold the previously programmed HomeLink® button.
If the indicator light A on button II in the overhead operating console starts to flash quickly and lights up continuously after approx. 2 seconds, it means that the equipment has a changeable code system.fInformation on synchronization can also be found in the operating instructions for the system to be programmed.
Assigning garage door opener signal to key
fPark the vehicle within the range of the remote- controlled equipment.
On the overhead operating console: 1. Switch on ignition. 2. The standard factory-set codes must be deleted before programming for the first time.
For information on deleting the factory-set codes:fPlease see the chapter “PROGRAMMING GARAGE DOOR OPENER: DELETING AND STORING SIGNALS” on page 212.3. Press and hold the desired button on the overhead operating console keypad until the indicator light A on button II starts to flash slowly.You now have 5 minutes to teach the button.4. Stand in front of the vehicle with the original remote control of the system to be programmed.
In front of the vehicle: 5. Hold the original remote control approx. 12 in. (30 cm) away from the marked position ( illustration) and press and hold the transmit button (for more than approx. 1 minute in some cases) until the vehicle’s turn signal lights flash on and off three times or the indicator light A on the overhead operating console starts flashing quickly.The turn signal lights flash three times and the indicator light A flashes quickly to confirm that the new signal has been programmed successfully.Several attempts with different distances between the vehicle and the original remote control may be necessary.With some systems, the transmit button on the original remote control may need to be pressed again when the indicator light on the original remote control goes out.
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216 Alarm System and Theft Protection
Alarm System and Passenger
Compartment Monitoring
FCC Numbers :
This device complies with Part 15 of the FCC Rules and RSS-210 of Industry Canada.
Operation of this device is subject to the following two conditions:1. This device may not cause harmful interference, and 2. this device must accept any interference received including interference that may cause undesired operation.
Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
Information
The manufacturer is not responsible for any radio or TV interference caused by unauthorized modifications to this equipment. Such modification could void the user's authority to operate the equipment.
The alarm system monitors the following alarm contacts:– Alarm contacts in doors, luggage compartment lid, engine compartment lid and headlights.– Interior surveillance: Movement in the interior when the vehicle is locked, e.g. attempted theft after breaking a window.– Inclination sensor country-specific equipment: inclination of the vehicle (e.g. when attempting to tow).
If one of these alarm contacts is interrupted, the alarm horn sounds for approx. 30 seconds and the emergency flasher flashes.After 5 seconds of interruption, the alarm is triggered again. This cycle is repeated up to ten times.
Switching on
fThe alarm system is activated when the vehicle is locked.
Switching off
fThe alarm system is deactivated when the vehicle is unlocked.
Information
fIf you unlock the vehicle with the emergency key in the door lock, you must switch the ignition on (ignition lock position 1) within 10 seconds of opening the door in order to prevent the alarm system from being triggered.
Information
If button on the car key is pressed and a door or the luggage compartment lid is not opened, the vehicle is locked again automatically after 30 seconds.
Switching off the alarm system if it is triggered
fUnlock vehicle or switch on ignition.
Switching off interior surveillance and inclination sensor
If people or animals are remaining in the locked vehicle or the vehicle is being transported on, e.g. a train or ship, the interior surveillance system and inclination sensor must be switched off temporarily.fInform any persons remaining in the vehicle that the alarm system will be triggered if the door is opened.
Using the car key
fQuickly press button on the car key twice within 2 seconds.The emergency flasher flashes slowly once.The doors are locked, but can be opened from inside.
USA: KR55WK50138
Canada: 7812D-5WK50138
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