2014 PORSCHE 911 TURBO sensor

Driving and Driving Safety 165
–“ACC not possible Switch on PSM” Adaptive cruise control is not available because PSM was switched off.For information on Porsche Stability Management (PSM) :fPLEASE SEE THE CHAPTER “PORSCHE STABILITY MANAGEMENT (PSM)” on page 181.–“ ACC off” Adaptive cruise control was deactivated.– “ACC not possible Steering lock too large” The steering is turned too far.
General information
“Sport” and “Sport Plus” Mode
Adaptive cruise control regulates your driving more dynamically in “ Sport” and “Sport Plus” mode.
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 safety belt is not fastened.– When parking or maneuvering in very tight spaces.– When the electric parking brake is activated.– If the PDK selector lever is in position N , R or P. – On upward or downward slopes of more than 15 %.
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 appears on the multi-function display.
Warning messages
Overtake request when adaptive cruise control is active (ACC active)
If adaptive cruise control detects that braking assistance is required on the part of the driver, a warning signal sounds and the warning message “ Distance Please brake” appears on the multi- function display.
In this case, the braking power of the adaptive cruise control is not sufficient to prevent a collision.fBrake immediately.
Traffic situations in which vehicles cannot be reliably detected
The radar sensor for adaptive cruise control scans a narrow, cone-shaped area in front of your vehicle.Detection can be limited or unreliable, depending on the traffic situation and the size of the vehicle in front. The system may brake too late or unexpectedly.Stationary vehicles are not detected. The system cannot respond to stationary vehicles.fDrive with extreme care.fSlow down if necessary.
Inadequate braking power during automatic braking by the adaptive cruise control.
WARNINGh
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166 Driving and Driving Safety
A – Vehicles changing lanes/cutting in
If a vehicle is changing lanes or cutting in ahead of you in the same lane, the vehicle will only be detected when it has moved completely into your lane.
B – Vehicles with a small cross-section/ narrow vehicles
Narrow or small vehicles will not be detected or will be detected too late.
C – Driving into and out of corners
When driving into and out of corners, vehicles will not be detected or will be detected too late, or adaptive cruise control will react to vehicles in adjacent lanes.
D – Stationary vehicles
A stationary vehicle that appears suddenly in the detection field of the radar sensor, e.g. after a vehicle in front changes lanes, will not be detected by adaptive cruise control.
Stationary vehicles are not detected by the radar sensor of the adaptive cruise control.fDrive with extreme care.fSlow down if necessary.
E – Vehicles with large overhangs
The tail of the vehicle will not be detected correctly on vehicles with large overhangs,e.g. timber lorries.
If there is a vehicle in front with a long overhang, the radar sensor of the adaptive cruise control is not able to detect the end of the vehicle or detects it incorrectly.fDrive with extreme care.fSlow down if necessary.Stationary vehicle not detected.WARNINGh
End of vehicle in front not detected correctly.WARNINGh
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Driving and Driving Safety 167
Active Safety – Porsche “Active Safe”
The adaptive cruise control sensor is used for the Porsche “Active Safe” functions.
These include: – Brake system prefilling Prefilling of the brake system if the radar sensor detects that the vehicle is coming critically close to a moving obstacle in order to bridge the air gaps and improve braking response.– Brake Assist Reduction of the activation threshold of the Brake Assist function if the sensor detects that the vehicle is coming critically close to a moving obstacle.The activation threshold of the Brake Assist function is reduced in three stages, depending on how critical the danger situation is.– Target braking If the radar sensor detects that the vehicle is coming critically close to a moving obstacle and, at the same time, braking power is inadequate, brake pressure can be increased in accordance with the situation, through to full braking if required.
Information
All Porsche “Active Safe” functions are active for speeds of more than 20 mph (30 km/h).
Latent warning (visual)
If the vehicle is driving too close to the vehicle in front for a long time, to avoid a collision if the vehicle in front brakes, a latent warning appears on the multi-function display to warn the driver.fStay further back from the vehicle in front if necessary.
Prewarning (acoustic and visual)
If the radar sensor detects that the vehicle is coming critically close to and is very likely to collide with a moving obstacle in front, an acoustic and visual prewarning is issued. This warns the driver and still allows a collision to be prevented if the driver reacts accordingly.
Risk of collision with the vehicle in front.fBrake immediately.
Insufficient distanceWARNINGh
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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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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
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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
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Parking 209
Deactivating ParkAssist
On vehicles with front and rear ParkAssist, the ParkAssist function can be deactivated manually.fPress button A on the overhead operating console.The indicator light in the button lights up.ParkAssist is switched off.
Display due to environmental factors
Correct operation is no longer guaranteed if there is a temporary fault (e.g. caused by ice formation or heavy soiling on the sensors).
Depending on the environmental factor, it is possible that a stop warning with acoustic warning or a warning triangle without acoustic warning is displayed on the central screen of the Porsche communication system.
ParkAssist is ready for operation again when the interference has been eliminated.
In the event of a permanent fault in ParkAssist, a continuous tone sounds for three seconds after reverse gear has been selected.
On vehicles with front and rear sensors only: In the case of a sensor problem, a warning triangle appears in the monitoring area for the relevant bumper and a continuous tone sounds for three seconds.
Possible cause: – Defect or system fault.fHave the fault corrected. Please contact an authorized Porsche dealer.
Reversing Camera
The reversing camera is located between the number plate lights in the bumper ( illustration).fPlease refer to the chapter “REVERSING CAMERA” in the separate PCM/CDR operating instructions.fAlways keep the reversing camera clean and free of ice and snow so that vision is not impaired.
For car care instructions:fPlease see the chapter “CAR CARE INSTRUCTIONS” on page 231.
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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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