2014 PORSCHE 911 TURBO ESP

184 Driving and Driving Safety
HOLD function: Drive-Off
Assistant, Standstill Management
The HOLD function, as an assistance function, assists the driver when stopping and driving off on upward slopes.The vehicle is automatically prevented from rolling back away from the desired direction of travel.When the HOLD function is active, the indicator light on the instrument panel comes on.
The vehicle is stopped and prevented from rolling back away from the desired direction of travel even without pressing the brake.
Information
The HOLD function is not available if the PDK selector lever is in position P and N.
If the PDK selector lever is moved while the HOLD function is active, the HOLD function is deactivated.
If the driver’s safety belt is unfastened and the driver’s door is opened while the HOLD function is active, the electric parking brake is activated automatically.
For information on the electric parking brake:fPlease see the chapter “ELECTRIC PARKING BRAKE” on page 151.
The limits set by the physics of driving cannot be overcome, even with the HOLD function. Responsibility for driving off on upward slopes is still the driver’s, despite the HOLD function.Assistance by the HOLD function is not always guaranteed when stopping and driving off on a slippery surface (e.g. on icy or loose surfaces). In this case, the vehicle can slip.fAlways adjust your driving style to the driving conditions and vehicle load. Use the footbrake if necessary.
If the Drive-Off Assistant is not functioning, the driver cannot be assisted when driving off on hills.fHold the vehicle with the footbrake.
If the vehicle comes to a standstill on a steep uphill gradient without operation of the footbrake by the driver, this may result in a certain roll-back before the vehicle is held by the HOLD function. In this situation, the roll-back can be reduced by pressing the footbrake.fAssist holding of the vehicle by increasing the braking force with the footbrake.
Information
When the HOLD function is active, the brake pedal may feel different and you may hear hydraulic noises.
This behavior is normal for the system. It is not a fault.
ABS Brake System
(Anti-lock Brake System)
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 physics of driving cannot be overcome, even with ABS.Risk of accidents due to inappropriate speed cannot be reduced by ABS.
ABS helps provide:
– 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
Limits of HOLD Function
Drive-Off Assistant Not Working
Vehicle Roll-back
WARNINGh
CAUTIONh
CAUTIONh
Loss of control over the vehicleWARNINGh
14_991_Turbo_21.book Seite 184 Mittwoch, 9. April 2014 2:19 14

186 Driving and Driving Safety
Selecting the PASM mode
1.Switch on ignition. 2. Press button (repeatedly).
On the button: – No indicator light comes on when “ Chassis Normal selected ” is selected (default setting).– An indicator light comes on when “ Chassis Sport selected ” is selected.
In addition, the selected chassis setup is shown on the multi-function display in the instrument panel for approx. 4 seconds.
Information
The last selected chassis setup is stored in the memory after the ignition is switched off.
Warning message
The system automatically detects PASM faults and displays them 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 in order to correct the fault.
Porsche Torque Vectoring
(PTV Plus)
Functional Description
Despite the advantages of PTV, it is still the driver’s responsibility to adapt his/her 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 PTV.Risk of accidents due to inappropriate speed cannot be reduced by PTV.
PTV Plus consists of a control system that performs braking interventions based on driving dynamics to achieve variable drive torque distribution on the rear axle and of an electronically controlled rear differential lock.
PTV Plus improves steering response and precision through gentle braking interventions on the inside rear wheel. This braking action cannot be felt by the driver. The vehicle follows the steering angle of the front wheels more precisely. Understeer is largely prevented in the limit range. This increases the lateral acceleration potential and higher cornering speeds are possible.
The electronically controlled rear differential lock continuously monitors the driving condition of the vehicle and distributes the drive torque to the rear axle as required.
Loss of control over the vehicleWARNINGh
14_991_Turbo_21.book Seite 186 Mittwoch, 9. April 2014 2:19 14

Driving and Driving Safety 187
This has the following advantages: – Improved traction.– Reduced load change responses when cornering at speed.– Improved driving stability at higher speeds.
PTV Plus changes to a more dynamic map when “ Sport Plus” is switched on.
Porsche Dynamic Chassis Control
(PDCC)
In spite of the advantages of PDCC, 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 PDCC.Risk of accidents due to inappropriate speed cannot be reduced by PDCC and PTV Plus.
Porsche Dynamic Chassis Control (PDCC) is a system for roll stabilization of the vehicle body when driving.Driving comfort and driving safety are improved by active intervention of the anti-roll bars on the front and rear axles. Vehicle balance and agility are optimized.
No separate controls are available for the PDCC system.When you select a chassis setup in Porsche Active Suspension Management (PASM) the PDCC system automatically activates the corresponding on-road driving program.
For information on selecting a chassis setup:fPlease see the chapter “PORSCHE ACTIVE SUSPENSION MANAGEMENT (PASM)” on page 185.
Warning message
The warning message “ Fault of the PDCC
stabiliser ” appears on the multi-function display in the instrument panel if there is a system fault.
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.
Checking hydraulic fluid
The hydraulic fluid is checked and changed regularly as part of servicing.
For information on maintenance:fPlease see the chapter “OVERVIEW OF WARNING AND INFORMATION MESSAGES” on page 129.
Loss of control over the vehicleWARNINGh
14_991_Turbo_21.book Seite 187 Mittwoch, 9. April 2014 2:19 14

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.
14_991_Turbo_21.book Seite 188 Mittwoch, 9. April 2014 2:19 14

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
14_991_Turbo_21.book Seite 200 Mittwoch, 9. April 2014 2:19 14

Parking 207
ParkAssist
When the driver is parking and maneuvering the vehicle, ParkAssist indicates the distance between the vehicle and a large obstacle by means of signal tones.fOn vehicles with front and rear sensors:For information on the ParkAssist visual display, please refer also to the section “PARKASSIST” in the operating instructions for the Porsche Communication Systems PCM/CDR.
ParkAssist is activated automatically when reverse gear is selected and the ignition is on.
If the vehicle has front ParkAssist, this also issues an automatic warning when the distance between the vehicle and an obstacle in front is less – than approx. 40 in./100 cm (acoustically) and approx. 32 in./80 cm (visually).
A warning signal sounds when – the distance between the vehicle and an obstacle at the rear is less than approx. 71 in./180 cm.The ParkAssist visual display appears on the central screen of the Porsche communication system.
Front and rear ParkAssist is not activated: – At a speed of more than approx. 9 mph (15 km/h).– When the electric parking brake is activated.– When the ParkAssist has been switched off with button A in the overhead console with the ignition switched on. The indicator light in button A lights up.
Responsibility for parking and for assessing the risk to persons, children, pets, and small objects around the vehicle lies completely with the driver. fMake sure that no persons (especially small children), animals or obstacles are within the maneuvering area. fIf the continuous tone sounds, stop and do not move your vehicle further in that direction.
Ultrasound sensors
Sensors
The ultrasound sensors A in the rear bumper and the sensors A in the front bumper (depending on vehicle equipment) measure the distance to the closest obstacle:– Range behind the vehicle: approx. 71 in. (180 cm)– Range at the side of the vehicle: approx. 24 in. (60 cm)– Range in front of the vehicle: approx. 47 in. (120 cm)
Obstacles cannot be detected in the “blind” sensor area (above and below the sensors, e.g. objects hanging down or close to the ground).
ParkAssist LimitsWARNINGh
14_991_Turbo_21.book Seite 207 Mittwoch, 9. April 2014 2:19 14

208 Parking
Ultrasound sensors
Maintenance notes
fThe sensors must always be kept free of dust, ice and snow in order to ensure that they are fully functional.fDo not damage sensors by abrasion or scratching.fMaintain sufficient distance when cleaning with high-pressure cleaning equipment.The sensors will be damaged if the pressure is too high.
Signal tones/function
When reverse gear is selected, ParkAssist confirms that it is switched on by issuing a short signal tone .
If the vehicle has front ParkAssist, no signal tone will be issued when reverse gear is selected.Instead, the ParkAssist visual display will appear on the central screen of the Porsche communication system.
A detected obstacle is signaled by an intermittent tone . The intervals decrease as the obstacle is approached.
If the distance drops to less than approx. 12 in. (30 cm), a continuous tone sounds.fSet the radio volume so that the signal tones are not drowned out.
The volume of the signal tones can be changed individually.
For information on changing the signal tone volume:fPlease see the chapter “ADJUSTING PARKASSIST VOLUME” on page 126.
Even when using ParkAssist, the driver is still responsible for taking due care when parking and when assessing obstacles.A continuous tone sounds when there is a risk of collision.fDo not drive rearward any further once a continuous tone sounds.
Limits of ultrasonic measurement
– ParkAssist cannot detect sound-absorbing obstacles (e.g. winter driving, powder snow, clothing made from fabric or fur),– sound-reflecting obstacles (such as glass surfaces and flat painted surfaces),– and very thin obstacles (e.g. thin posts).
Other ultrasound sources (e.g. pneumatic brakes of other vehicles, sweeping machines and jack hammers) can interfere with the detection of obstacles.
Care Required ParkingWARNINGh
14_991_Turbo_21.book Seite 208 Mittwoch, 9. April 2014 2:19 14

Parking 211
Garage Door Opener HomeLink®
(Universal Remote Control)
With the HomeLink® of your Porsche, a wide range of remote-controlled equipment (e.g. garage door/gate to your property, security systems, house lights) can be activated from inside the vehicle.
The HomeLink® system replaces up to three different original remote controls. The signal for a remote control can be assigned to one of the three memory buttons I, II and III on the overhead operating console keypad. The respective equipment can then be operated using the programmed memory button.
Transmission of the signal is indicated by the indicator light in the button II.
Information
fPlease read the instructions for the original remote control.fInformation on the compatibility of your vehicle’s HomeLink® system with the original remote control can be obtained from your authorized Porsche dealer, on the HomeLink® website (www.homelink.com) or by calling the free HomeLink® hotline (1-800-355-3515).
When opening and closing the equipment being operated, parts of the body could become trapped or crushed.fWhen using the garage door opener, make sure that no persons or animals are within the range of movement of the equipment that is being operated.fObserve the safety notes for the original remote control.
Information
fWhen the button is pressed, the transmitter unit sends the signal forward in direction of travel.Always align the vehicle with the receiver.Otherwise, range restrictions cannot be ruled out.fBefore selling the vehicle, delete the programmed signals for the garage door opener on the keypad. fIf the equipment cannot be operated after the initial programming, check whether the original remote control has fixed or changeable code.To find this out, read the instructions for the original remote control.
Garage Door Opener Use
WARNINGh
14_991_Turbo_21.book Seite 211 Mittwoch, 9. April 2014 2:19 14