brake sensor VOLVO S80 2009 Owner´s Manual
Page 170 of 288
04 Comfort and driving pleasureAdaptive Cruise Control–ACC (option)
04170
Cause
Action
Swirling water or snow from the surface of the road may interfere with
the radar signals.
No action possible. A very wet or snow-covered road surface may affect
the function of the radar.
The surface of the radar is clean but the message remains in the display.
Wait a short time. It may take several minutes for the radar to detect that
it is no longer obstructed.
Symbols and messages in the displaySymbol
Message
DescriptionStandby mode or active mode when no other vehicle has been detected.Active mode with a detected vehicle to which ACC is adapting speed/distance.Time interval while it is being set.Time interval after it has been set.
Turn on DSTC
to enable Cruise
ACC cannot be activated until the stability system (DSTC) has been activated. see page 154 for more
information on DSTC.
Cruise control canceled
ACC has been automatically switched off.
The driver must regulate the vehicle’s speed/distance to the vehicle ahead.
Cruise control unavailable
ACC cannot be activated. This may be due to:•
high brake temperature
•
the radar sensor is obstructed (by heavy rain, snow, etc.)
Page 174 of 288
04 Comfort and driving pleasureDistance alert
04174
Symbol
Message
Description
Radar blockd
See manual
Distance Alert has been temporarily disconnected because the radar is obstructed in some way and
cannot detect other vehicles. See page 168 for information on the radar sensor’s limitations.
Collision warn.
Service required
Distance Alert or Collision Warning with Auto-brake is not functioning properly. Contact a trained and
qualified Volvo service technician.
Page 180 of 288
04 Comfort and driving pleasurePark assist (option)
04180
IntroductionThe 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
G018386
Park assist buttonThe 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.
Page 182 of 288
04 Comfort and driving pleasurePark assist (option)
04182
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 systemIf 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
G028933
G021425
Location of the rear sensorsThe 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.