2010 VOLVO S80 Owner´s Manual

04 Comfort and driving pleasure
Driver Alert System*
04

* Option/accessory, for more information, see Introduction.177 Introduction
The Driver Alert System is designed to help a
driver who may be becoming fatigued or who
is inadvertently leaving the lane.
The Driver Alert System consists of two differ-
ent functions that can be switched on together
or separately.
•Driver Alert Control (DAC)
•Lane Departure Warning (LDW)
When one or both of the functions has been
switched on, it is in standby mode and is acti-
vated when the vehicle exceeds a speed of
40 mph (65 km/h).
The function deactivates if speed goes under
37 mph (60 km/h).
Both functions use a camera that is dependent
on the road/lane being clearly marked by pain-
ted lines on each side.
WARNING
The Driver Alert system does not function in
all situations and is designed to be a sup-
plementary aid. It is not, however, intended
to replace the driver’s attention and judge-
ment.
Driver Alert Control (DAC)–general
information
G017332
This function is intended to alert the driver if
his/her driving becomes erratic, such as if the
driver is distracted or fatigued.
NOTE
The camera has certain limitations, see
page 163.
A camera monitors the painted lines marking
the lane in which the vehicle is traveling and
compares the direction of the road with the
driver’s movements of the steering wheel. The
driver is alerted if the vehicle does not follow
the lane smoothly.DAC is designed to help detect a slowly chang-
ing driving pattern. It is primarily intended to be
used on main roads and is not meant for use in
city traffic.
WARNING
•DAC is not intended to extend the dura-
tion of driving. Always plan breaks at
regular intervals to help remain alert.
•In certain cases, fatigue may not affect
the driver’s behavior. In situations of
this type, no warning will be provided.
Therefore, it is important to take breaks
at regular intervals, regardless of
whether or not DAC has given a warn-
ing.
LimitationsIn certain situations, DAC may provide warn-
ings even if the driver’s driving pattern has not
become erratic.
•if the driver is testing the LDW function
•in strong crosswinds
•on grooved road surfaces.

04 Comfort and driving pleasure
Driver Alert System*
04
178* Option/accessory, for more information, see Introduction.
Operating DAC
Certain settings can be made from the menu
system controlled from the center instrument
panel, see page 122 for more information on
the menu system.
The current system status can be checked on
the trip computer’s display by using the but-
tons on the left steering wheel lever.
Thumb wheel. Turn this wheel until Driver
Alert is displayed. The second line shows
the alternative Off, Unavailable, or[-----], i.e., the number of bars.
READbutton. Confirms and erases a mes-
sage in the display.
Activating DACIn the center instrument panel, go to Car
settings Driver Alertand select On.
The function is activated when the
vehicle exceeds a speed of 40 mph
(65 km/h). The display will show level
markings of 1–5 bars, where a low
number of bars indicates erratic driving. A high
number of bars indicates stable driving.
If the vehicle is being driven erratically, the
driver will be alerted by an audible signal and
the message Driver Alert, Time for a break is
displayed. The warning will be repeated after a
short time if the driving pattern remains the
same.
WARNING
•An alert should be taken seriously since
it is sometimes difficult for a driver to
realize that he/she is fatigued.
•In the event of a warning or if the driver
feels fatigued, stop as soon as possible
in a safe place and rest.

04 Comfort and driving pleasure
Driver Alert System*
04

* Option/accessory, for more information, see Introduction.179 Symbols and messages in the display
SymbolMessageDescription
-Driver Alert
OFFThe function is not switched on.
-Driver Alert
UnavailableThe vehicle’s speed is below 37 mph (60 km/h) or the road lacks clear marking lines.
Driver AlertThe function is analyzing the driver’s driving pattern. The number of bars varies from 1–5, where a low
number of bars indicates erratic driving. A high number of bars indicates stable driving.
Driver Alert
Time for a breakThe vehicle has been driven erratically. The driver receives an audible signal and a text message.
Camera blocked
See manualThe camera is temporarily not functioning, due to snow, ice, or dirt on the windshield. Clean the area
of the windshield in front of the camera. See page 163 for information on the camera’s limitations.
Driver Alert Sys
Service requiredThe system is not functioning. Contact a trained and qualified Volvo service technician if the message
remains in the display.

04 Comfort and driving pleasure
Driver Alert System*
04
180* Option/accessory, for more information, see Introduction.
Lane Departure Warning (LDW)–
general information
This function is designed to help reduce the
risk of accidents in situations where the vehicle
leaves its lane and there is a risk of driving off
the road or into the opposite lane. LDW con-
sists of a camera that monitors the lane’s side
marker lines. The driver is alerted by an audible
signal if the vehicle crosses a side marker line
or the road’s center dividing line.
Operation and function
LDW can be switched on or off by pressing the
button on the center console. A light in the but-
ton illuminates when the function is on.
The trip computer display shows
Lane Depart
Warn Unavailable when the function is in
standby mode.
When LDW is in standby mode, the function is
activated automatically after the camera has
monitored the road’s side marker lines and the
vehicle’s speed exceeds 40 mph (65 km/h).
Lane Depart Warn Available will be dis-
played.If the camera can no longer monitor the road’s
side marker lines, or if the vehicle’s speed falls
below 37 mph (60 km/h), LDW will return to
standby mode and
Lane Depart Warn
Unavailable will be displayed.
If the vehicle unexpectedly crosses the lane’s
left or right side marker lines, the driver will be
alerted by an audible signal.
No warning signal will be given in the follow-
ing situations:
•The turn signal is being used
•The driver’s foot is on the brake pedal1
•The throttle pedal is pressed quickly
•If the steering wheel is moved quickly
•In sharp turns that cause the vehicle’s
body to sway.
See page 163 for information on the camera’s
limitations.
WARNING
The driver will only be warned once for each
time the wheels cross a marker line. No
alarm will be given if a marker line is
between the wheels.
1A warning will be given even when Increased sensitivity has been selected.

04 Comfort and driving pleasure
Driver Alert System*
04
* Option/accessory, for more information, see Introduction.181 Symbols and messages in the display
SymbolMessageDescription
Lane departure
warning On/OffThe function is switched on or off. The text disappears after 5 seconds.
-Lane Depart Warn
AvailableThe function is monitoring the road’s marker lines.
-Lane Depart Warn
UnavailableSpeed is below 37 mph (60 km/h) or if the road lacks clear marker lines.
Camera blocked
See manualThe camera is temporarily not functioning, due to snow, ice, or dirt on the windshield. Clean
the area of the windshield in front of the camera. See page 163 for information on the camera’s
limitations.
Driver Alert Sys
Service requiredThe system is not functioning. Contact a trained and qualified Volvo service technician if the
message remains in the display.
SettingsSettings for Lane Departure Warning can be
made in the menu system under Car settings
Lane Departure Warning. See page 122
for more information on the menu system.
On at startup: This selection puts the function
in standby mode each time the engine isstarted. Otherwise, the system will be in the
mode that it was in when the engine was
switched off.
Increased sensitivity: This selection increa-
ses the function’s sensitivity. Warnings will be
given at an earlier stage and fewer limitations
apply.

04 Comfort and driving pleasure
Park assist*
04
182* Option/accessory, for more information, see Introduction.
Introduction
The park assist system is designed to assist
you when driving into parking spaces, garages,
etc. It utilizes four ultrasound sensors located
in one or both bumpers to measure the dis-
tance to a vehicle, object, or a person who may
be close to the front or rear of your vehicle.
This system is available in the rear bumper
only, or in both the front and rear bumpers.
Park assist utilizes four ultrasound sensors in
the bumper(s) to measure the distance to a
vehicle, object, or a person who may be close
to the front or rear of your vehicle. An audible
signal and symbols in the audio system’s dis-
play indicate the distance to the object
WARNING
Park Assist is an information system, NOT a
safety system. This system is designed to
be a supplementary aid when parking the
vehicle. It is not, however, intended to
replace the driver's attention and judge-
ment.
Function
Park assist button
The system is activated automatically when the
vehicle is started. The indicator light in the but-
ton in the center console illuminates when the
system is on.
•The front park assist system is active from
the time the engine is started until the vehi-
cle exceeds a speed of approximately
10 mph (15 km/h). It is also active when the
vehicle is backing up.
•Rear park assist is active when the engine
is running and reverse gear has been
selected.
Activating/deactivatingThe system is activated automatically when the
vehicle is started.

Press the Park assist button on the center
console to temporarily deactivate the sys-
tem(s).
> The indicator light in the button will go
out when the system has been deacti-
vated.
Park assist will be automatically reactivated the
next time the engine is started, or if the button
is pressed (the indicator light in the button will
illuminate).
NOTE
•Front park assist is disengaged auto-
matically when the parking brake is
applied.
•If the vehicle is equipped with front and
rear park assist, both systems will be
deactivated by pressing the button.

04 Comfort and driving pleasure
Park assist*
04

* Option/accessory, for more information, see Introduction.183 Signals from the park assist system
Active
Active
Active
1
2
3
Views in the display
Visual indicatorThe audio system’s display gives an overview
of the vehicle’s position in relation to a
detected object.
The markers in the display indicate that one or
more of the four sensors has detected an
object. The greater the number of markers, the
closer the vehicle is to the object.
Display in a vehicle with rear park assist
only. Here, an object has been detected by
both of the right rear sensors.
Display in a vehicle with both front and rear
park assist. The solid marker in this example
indicates that an object is closer than approx-
imately 1 foot (30 cm) to the right front sensor.
Display in a vehicle with both front and rear
park assist. Reverse gear is selected and no
objects have been detected in front of or
behind the vehicle.
Audible signalThe Park Assist system uses an intermittent
tone that pulses faster as you come close to an
object, and becomes constant when you are
within approximately 1 ft (30 cm) of an object
in front of or behind the vehicle (example 2 in
the illustration). If there are objects within this
distance both behind and in front of the vehicle,
the tone alternates between front and rear
speakers.
If the volume of another source from the audio
system is high, this will be automatically low-
ered.
Rear park assist
G021423
The distance monitored behind the vehicle is
approximately 5 ft (1.5 m). The audible signal
comes from the rear speakers.
The system must be deactivated when towing
a trailer, carrying bicycles in a rear-mounted
carrier, etc, which could trigger the rear park
assist system's sensors.
NOTE
Rear park assist is deactivated automati-
cally when towing a trailer if Volvo genuine
trailer wiring is used.

04 Comfort and driving pleasure
Park assist*
04
184* Option/accessory, for more information, see Introduction.
Front park assist
G021424
The distance monitored in front of the vehicle
is approximately 2.5 ft (0.8 m). The audible sig-
nal comes from the audio system's front
speakers.
It may not be possible to combine auxiliary
headlights and front park assist since these
lights could trigger the system's sensors.
Faults in the system
If the information symbol illuminates and Park
Assist syst Service required is shown on the
information display, this indicates that the sys-
tem is not functioning properly and has been
disengaged. Consult a trained and qualified
Volvo service technician.
CAUTION
In certain circumstances, the park assist
system may give unexpected warning sig-
nals that can be caused by external sound
sources that use the same ultrasound fre-
quencies as the system. This may include
such things as the horns of other vehicles,
wet tires on asphalt, pneumatic brakes,
motorcycle exhaust pipes, etc. This does
not indicate a fault in the system.
Cleaning the sensors
Location of the front sensors.
G021425
Location of the rear sensors.
The sensors must be cleaned regularly to
ensure that they work properly. Clean them
with water and a suitable car washing deter-
gent.
Ice and snow covering the sensors may cause
incorrect warning signals.
NOTE
If the sensors are obstructed by e.g., dirt,
snow, or ice, this could result in false warn-
ing signals from the park assist system.