2014 PORSCHE 911 TURBO Owners Manual

Driving and Driving Safety 159
Operating principle of adaptive cruise control
No vehicle detected in front – open road driving
Adaptive cruise control operates like a cruise control system. The desired speed that was set is maintained constantly.
Vehicle detected in front – driving in traffic
If a vehicle traveling ahead of you in the same lane is detected as driving slower than the selected desired speed, adaptive cruise control will automatically maintain a set distance from the vehicle in front.
If the vehicle in front stops, adaptive cruise control will slow your vehicle down to a stop provided this is possible within the control limits of the system.Adaptive cruise control actively keeps your vehicle at a standstill.
If the vehicle in front drives off, automatic speed control and distance control can be resumed.
Speed exceeded
The speed of the vehicle can be increased at any time by pressing the accelerator.
If the vehicle is traveling faster than the speed set by adaptive cruise control (ACC), adaptive cruise control is deactivated.The message “ ACC passive” appears on the multi-function display in the instrument panel.The desired speed that was stored is retained.
After releasing the accelerator pedal, the ACC accelerates to the desired speed if there is no vehicle in front and controls the distance if there is a vehicle in front.
For information on the “ ACC passive” status:fPlease see the chapter “OPERATING STATES WHEN ADAPTIVE CRUISE CONTROL IS SWITCHED ON” on page 161.R - Switch adaptive cruise control on/off 1 - Set/increase desired speed 2 - Reduce desired speed 3 - Interrupt (OFF) 4 - Operational readiness on/return to set speed (RESUME)
Using adaptive cruise control
Adaptive cruise control is operated using the control stalk at the bottom left of the steering wheel.
Information
You can intervene manually at any time by pressing the brake or accelerator.
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A- Desired distance from vehicle in front B - Status display and desired speed C - Vehicle detected in front D - Current distance from vehicle in front E - Current speed of vehicle in front F - Progress bar showing speed control range (0 - 100 mph (0 - 160 km/h))G - Current speed
Adaptive cruise control display
All important information, messages and warnings are displayed on the multi-function display in the instrument panel.
“ACC” main menu
The adaptive cruise control display on the multi- function display can be selected permanently using the buttons on the multi-function steering wheel or the control stalk at the bottom right of the steering wheel.
For information on using the multi-function display:fPlease see the chapter “OPERATING THE MULTI-FUNCTION DISPLAY ON THE INSTRUMENT PANEL” on page 96.
Status display
When adaptive cruise control is switched on, the status display B appears at the bottom left of the multi-function display ( illustration).
The status display B turns orange when adaptive cruise control is active.The status display B is grey when adaptive cruise control is inactive.
1. Main menu: Select “ACC” on the display
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Examples:Switching adaptive cruise control on and off
Switching adaptive cruise control on
fPress button R on the control stalk. The grey status display appears on the multi-function display.Adaptive cruise control is ready.
Switching adaptive cruise control off
fPress button R on the control stalk. “ ACC off” appears on the multi-function display.The desired speed that was stored is deleted.The desired distance is set to the default value.
Operating states when adaptive cruise control is switched on
There are three possible operating states when adaptive cruise control is switched on.
Adaptive cruise control active
Adaptive cruise control automatically regulates the speed and distance from the vehicle in front.The status display B turns orange.
Adaptive cruise control is ready
Cruise control and distance control is inactive after pressing the brakes or interrupting by pressing the control stalk downwards (position 3, OFF ). The desired speed that was stored and the desired distance that was set are retained.The status display B turns grey.
For information on resuming cruise control and distance control:fPlease see the chapter “RESUMING CRUISE CONTROL AND DISTANCE CONTROL – RESUME” on page 164.
Adaptive cruise control passive
Cruise control and distance control is inactive after pressing the accelerator.“ ACC passive” appears on the multi-function display.The desired speed that was stored and the desired distance that was set are retained.The status display B turns grey. Adaptive cruise control is active again after you release the accelerator.
Setting and changing the desired speed
Preconditions
– Adaptive cruise control is switched on. – Vehicle is moving.– No stationary objects are detected in front.
If adaptive cruise control is switched on, and no desired speed is stored, the cruise control symbol appears but the desired speed field remains blank.
If a desired speed is stored and no vehicle was detected in front, the cruise control symbol and the desired speed are displayed.
If a desired speed is stored and a vehicle was detected in front, a vehicle symbol and the desired speed are displayed.
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162 Driving and Driving Safety
Setting the desired speed
1. Press the control stalk on the steering wheel forward (position 1). The current driving speed is stored as the desired speed, which will be maintained automatically (within the control range of 20 to 100 mph (30 to 160 km/h)) and appears orange in the status display B. The red triangle G under the progress bar for the speed control range shows the speed of your vehicle.2. Release the accelerator pedal. The desired speed is maintained automatically unless a vehicle traveling in front is detected as driving slower than the desired speed.
Information
If a stationary object was detected in front, the message “ ACC not possible Stationary object ahead” appears on the multi-function display.
Increasing the desired speed
fPress the control stalk on the steering wheel forward (position 1). The desired speed is increased in steps of 1 mph (1 km/h).orPress the control stalk on the steering wheel forward and keep it pressed (position 1). The desired speed is increased in steps of 5 mph (10 km/h).The status display B shows the new desired speed.The red triangle G under the progress bar for the speed control range shows the speed of your vehicle.
Reducing the desired speed
fBriefly pull the control stalk on the steering wheel towards the steering wheel (position 2). The desired speed is decreased in steps of 1 mph (1 km/h).orPull the control stalk on the steering wheel towards the steering wheel and keep it pulled (position 2). The desired speed is decreased in steps of 5 mph (10 km/h).The status display B shows the new desired speed.The red triangle G under the progress bar for the speed control range shows the speed of your vehicle.
Information
If your vehicle is stationary, the message “ ACC not possible while stationary ” appears on the multi-function display when you press the control stalk forward (position 1).
Setting the desired distance
The desired distance from the vehicle in front can be set in four stages.
Information
When you are setting the desired distance, the “ ACC” main menu for adaptive cruise control is displayed temporarily on the multi-function display.When you first actuate the rocker switch Z, the “ ACC” main menu appears without changing the desired distance.
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Information
The distance depends on the driving speed. The slower the vehicle is traveling, the shorter the distance and the faster the vehicle is traveling, the longer the distance.
Increasing the desired distance
fPress the rocker switch Z upwards. The desired distance is increased.More orange segments are shown in the desired distance display A.
Reducing the desired distance
fPress the rocker switch Z downwards. The desired distance is reduced.Fewer orange segments are shown in the desired distance display A.
Display showing distance from vehicle in front
If a vehicle is detected in front, the vehicle symbol C appears on the multi-function display and in the status display B. The grey area D shows the current distance from the vehicle in front.
Possible distance settingsAutomatic braking to a standstill
If the vehicle in front stops, your vehicle will slow down and come to a stop within the control limits of the system if adaptive cruise control is active.The indicator light lights up on the instrument panel.The vehicle is actively held at a stop.
For information on the HOLD function:fPlease see the chapter “HOLD FUNCTION: DRIVE-OFF ASSISTANT, STANDSTILL MANAGEMENT” on page 184.
Information
– Depending on the traffic flow, e.g. slow moving traffic, stopping is initiated by a slow crawling phase, which brings the vehicle to a standstill.– When adaptive cruise control is operating normally or 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.
Suitable for speedy driving in lines of traffic. The time gap is 1 second. This corresponds to approx. 36 yd. (33 meters) at a speed of 75 mph (120 km/h).
Suitable for steady driving in lines of traffic. The time gap is 1.3 seconds. This corresponds to approx. 47 yd. (43 meters) at a speed of 75 mph (120 km/h).
Preset distance Corresponds to the general recommendation of the road traffic safety regulation (“two seconds time headway”). The time gap is 1.8 seconds. This corresponds to approx. 66 yd. (60 meters) at a speed of 75 mph (120 km/h).
Suitable for driving on country roads. The time gap is 2.3 seconds. This corresponds to approx. 63 yd. (58 meters) at a speed of 55 mph (90 km/h).
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Driving off again
The vehicle can be driven off again after being stopped and speed and distance control will be resumed, depending on the operating state of the adaptive cruise control system.
Adaptive cruise control active
1. Press the control stalk on the steering wheel upwards (position 4, RESUME). 2. Press the accelerator pedal briefly. Your vehicle drives off again automatically.
Information
Your vehicle will not drive off if the vehicle detected in front is stationary.
Adaptive cruise control is ready
Automatic speed and distance control can only be resumed when your vehicle is moving.1. Drive off normally. 2. Press the control stalk on the steering wheel upwards (position 4, RESUME). orSet or change the desired speed.
Interrupting and resuming cruise control and distance control
Interrupting cruise control and distance control – OFF
fPress the brake pedal.orPress the control stalk on the steering wheel downwards (position 3, OFF). Adaptive cruise control is inactive.The desired speed that was stored and the desired distance are retained.
Resuming cruise control and distance control – RESUME
fPress the control stalk on the steering wheel upwards (position 4, RESUME). The vehicle accelerates to the desired speed that was stored unless a vehicle traveling in front is detected as driving slower than the desired speed and the distance from this vehicle is less than the desired distance that was set.The status display B changes from grey to orange.orPress the control stalk on the steering wheel upwards and keep it pressed (position 4, RESUME ). The vehicle accelerates in a more sporty driving style to the desired speed that was stored.
Information
If speed and distance control was interrupted by moving the control stalk to position 3 (OFF), it can only be resumed again when the vehicle is moving and no stationary objects are detected in front.
Messages on the multi-function display
If adaptive cruise control was deactivated automatically or if an action cannot be performed, a message to this effect in blue appears on the multi-function display.–“ ACC not available” Adaptive cruise control is not available, e.g. when maneuvering.–“ ACC not possible ABS/PSM intervention” Adaptive cruise control was deactivated because ABS or PSM intervened as a control mechanism.–“ Release parking brake” Adaptive cruise control was deactivated because the electric parking brake was activated.–“ ACC not possible Move gear lever to D/M ” Adaptive cruise control was deactivated because the PDK selector lever is not in position D or manual position M. –“ ACC not possible while stationary” The required action is not possible because your vehicle is stationary, e.g. when setting a desired speed.–“ ACC not possible Revs too high” Adaptive cruise control was deactivated because the engine-speed limit was reached in manual position M of the PDK selector lever/ shift paddles.–“ ACC not possible Gradient too steep” The desired distance or the desired speed cannot be set because the incline of the road is too steep.–“ ACC not possible Stationary object ahead ” The action is not possible because a stationary object was detected ahead.
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–“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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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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