2019 VOLVO XC90 TWIN ENGINE windshield

||DRIVER SUPPORT
* Option/accessory.
300
WARNING
The radar sensor has a limited field of
vision. In some situations, it may detect a
vehicle later than expected or not detect
other vehicles at all.
The radar sensor cannot cover all driving
situations and traffic, weather and road
conditions.
The driver is responsible for maintaining a
safe distance and speed and must inter-
vene if the various driver support systems
do not maintain a suitable speed or suita-
ble distance to the vehicle ahead.
Maintenance of radar sensor components
may only be performed by a trained and
qualified Volvo technician.
Strong sunlight, reflections from the road
surface, strong lighting contrasts or using
sunglasses may make the warning light in
the windshield difficult to see. Poor
weather or winding roads can affect the
radar sensor's capacity to detect vehicles
ahead.
A vehicle's size (e.g., a motorcycle) can
also affect the radar sensor's capacity to
detect another vehicle. This may result in
the warning light illuminating at a shorter
distance than the one that has been set
or not illuminating at all.
High speeds may also result in the warn-
ing light illuminating at a shorter distance
than the one that has been set due to
limitations in the radar sensor's range.
NOTE The function uses the vehicle's radar unit,
which has some general limitations – see the
section "Radar unit limitations".
Related information

Distance Alert* (p. 296)
Radar sensor limitations (p. 333) Adaptive Cruise Control*
Adaptive Cruise Control (ACC 38
) helps the
driver maintain a constant speed with a set time
interval to the vehicle ahead.
Adaptive Cruise Control helps provide a more
relaxed driving experience on long trips on high-
ways or long, straight roads with even traffic
flows. The camera/radar sensor measures the distance to the
vehicle ahead
39
.
The driver sets a speed and a time interval to the
vehicle ahead. If the camera/radar sensor detects
a slower-moving vehicle ahead, your vehicle's
speed will be automatically adapted according to
the set time interval to that vehicle. When there
are no longer slower-moving vehicles ahead, the
vehicle will return to the set speed.

DRIVER SUPPORT
* Option/accessory.303

Managing Adaptive Cruise Control speed
(p. 305)
Setting Adaptive Cruise Control time inter-
vals (p. 306)
Deactivating/reactivating Adaptive Cruise
Control (p. 307)
Passing assistance with Adaptive Cruise
Control (p. 309)
Starting passing assistance with Adaptive
Cruise Control (p. 310)
Limitations of passing assistance with Adap-
tive Cruise Control (p. 310)
Switching target vehicles with Adaptive
Cruise Control (p. 310)
Automatic braking with Adaptive Cruise Con-
trol (p. 311)
Adaptive Cruise Control limitations (p. 312)
Switching between Cruise Control and Adap-
tive Cruise Control (p. 313)
Symbols and messages for Adaptive Cruise
Control (p. 314) Adaptive Cruise Control and
collision warning
Adaptive Cruise Control can alert the driver if the
distance to the vehicle ahead suddenly decrea-
ses to an unsafe distance.
Collision warning light on the windshield
40
. Audio-visual collision warning
Camera/radar sensor distance monitoring
Adaptive Cruise Control utilizes approx. 40% of
the vehicle's braking capacity. If a situation
requires more braking force than the Adaptive
Cruise Control can provide, and if the driver does
not apply the brakes, a warning light and audible
warning signal will be activated to alert the driver
that immediate action is required.
NOTE Visual warnings on the windshield may be dif-
ficult to notice in cases of strong sunlight,
reflections, extreme light contrasts, or if the
driver is wearing sunglasses or is not looking
straight ahead.
WARNING
Adaptive Cruise Control only issues a warning
for vehicles detected by its radar unit – thus, a
warning may come after a delay or not at all.
Never wait for a warning. Apply the
brakes when necessary.
Related information

Adaptive Cruise Control* (p. 300) 40
Note: This illustration is general and details may vary depending on mod\
el.

DRIVER SUPPORT
* Option/accessory.
304 Head-up display for Adaptive Cruise
Control with collision warning
In vehicles equipped with a head-up display*, a
flashing warning symbol will be displayed on the
windshield. Collision warning symbol on the windshield
41
.
NOTE Visual warnings on the windshield may be dif-
ficult to notice in cases of strong sunlight,
reflections, extreme light contrasts, or if the
driver is wearing sunglasses or is not looking
straight ahead.
Related information

Adaptive Cruise Control* (p. 300)
Head-up display* (p. 142) Activating and starting Adaptive
Cruise Control
Adaptive Cruise Control (ACC
42
) must first be
activated and then started before it can regulate
speed and distance.
Putting Adaptive Cruise Control in
standby mode Note: This illustration is general and details may vary
depending on model.
Adaptive Cruise Control is in standby mode each
time the engine is started. To put ACC in standby
mode from active mode:
–
Press ◀ (2) or ▶ (3) on the steering wheel
keypad and scroll to the (4) function.
>

The symbol will appear and Adaptive
Cruise Control will go into standby mode.
Starting/activating Adaptive Cruise
Control
To start ACC:
The driver's seat belt must be buckled and
the driver's door must be closed.
There must be a vehicle ahead (target vehi-
cle) within a reasonable distance or your
vehicle's current speed must be at least
15 km/h (9 mph). Note: This illustration is general and details may vary
depending on model.
–
With the (4) function displayed, press
(1) on the steering wheel keypad.
>

Adaptive Cruise Control will start and the
current speed will be stored, which will be
shown by numbers in the center of the
speedometer. 41
Note: This illustration is general and details may vary depending on mod\
el.

DRIVER SUPPORT
* Option/accessory.315Symbol
Message MeaningThe symbol is WHITE.
The vehicle is maintaining the set speed.Adaptive Cruise Contr.
Unavailable
The symbol is GRAY. Adaptive Cruise Control is in standby mode.Adaptive Cruise Contr.
Service required
The symbol is GRAY. The system is not functioning as intended. Contact a workshop ‒ an authorized Volvo workshop is
recommended. Windscreen sensor
Sensor blocked, see Owner's manual
Clean the windshield in front of the camera and radar sensors.A text message can be erased by briefly pressing
the
button in the center of the right-side
steering wheel keypad.
If the message persists: Contact a workshop ‒ an
authorized Volvo workshop is recommended.
Related information
Adaptive Cruise Control* (p. 300)

DRIVER SUPPORT
}}
* Option/accessory. 319
Instrument panelSpeed indicators
57
. Set speed
Speed of the vehicle ahead
The current speed of your vehicle
See "Pilot Assist symbols and messages" for
examples of different combinations of symbols
depending on the traffic situation.
Related information
Pilot Assist and collision warning (p. 319)
Head-up display for Pilot Assist during colli-
sion risks (p. 320)
Activating and starting Pilot Assist (p. 320)
Managing Pilot Assist speed (p. 322)
Setting a time interval for Pilot Assist
(p. 323)
Deactivating/reactivating Pilot Assist
(p. 324)
Passing assistance with Pilot Assist (p. 326)
Starting passing assistance with Pilot Assist
(p. 327)
Passing assistance with Pilot Assist limita-
tions (p. 327)
Switching target vehicles with Pilot Assist
(p. 327)
Auto-hold braking with Pilot Assist (p. 328)
Pilot Assist limitations (p. 329)
Pilot Assist* symbols and messages (p. 330) Pilot Assist and collision warning
Pilot Assist can alert the driver if the distance to
the vehicle ahead suddenly decreases to an
unsafe distance. Collision warning light on the windshield
58
. Audio-visual collision warning
Camera/radar sensor distance monitoring
Pilot Assist uses approx. 40% of the vehicle's
braking capacity. If a situation requires more
braking force than Pilot Assist can provide, and if
the driver does not apply the brakes, a warning
light and audible warning signal will be activated
to alert the driver that immediate action is
required. 57
Note: This illustration is general and details may vary depending on mod\
el.
58 The illustration is generic - details may vary according to vehicle mode\
l.

||DRIVER SUPPORT
* Option/accessory.
320
NOTE Visual warnings on the windshield may be dif-
ficult to notice in cases of strong sunlight,
reflections, extreme light contrasts, or if the
driver is wearing sunglasses or is not looking
straight ahead.
WARNING
Pilot Assist only issues a warning for vehicles
detected by its camera and radar unit – thus,
a warning may come after a delay or not at all.

Never wait for a warning. Apply the
brakes when necessary!
Related information
Pilot Assist (p. 316) Head-up display for Pilot Assist
during collision risks
In vehicles equipped with a head-up display*, a
flashing warning symbol will be displayed on the
windshield. Collision warning symbol on the windshield
59
.
NOTE Visual warnings on the windshield may be dif-
ficult to notice in cases of strong sunlight,
reflections, extreme light contrasts, or if the
driver is wearing sunglasses or is not looking
straight ahead.
Related information

Pilot Assist (p. 316)
Head-up display* (p. 142) Activating and starting Pilot Assist
Pilot Assist must first be activated and then
started before it can help regulate speed and
distance and provide steering assistance.
Note: This illustration is general and details may vary
depending on model.
To start Pilot Assist:

The driver's seat belt must be buckled and
the driver's door must be closed.
There must be a vehicle ahead (target vehi-
cle) within a reasonable distance or your
vehicle's current speed must be at least
15 km/h (9 mph). 59
Note: This illustration is general and details may vary depending on mod\
el.

DRIVER SUPPORT
}}
333
Radar sensor limitations
The radar sensor used by several of the driver
support functions has certain limitations, which
also affect the functions using the radar sensor.
Obstructed camera The area marked in the illustration must be kept free of
decals, objects, solar film, etc.
65 The radar sensor is located on the upper interior
section of the windshield along with the camera.
CAUTION Do not place, affix or mount anything on the
inside or outside of the windshield, or in front
of or around the camera and radar unit – this
could disrupt camera and radar-based func-
tions.
It could cause functions to be reduced, deac-
tivated completely or produce an incorrect
function response. If this symbol and the message
"
Windscreen sensor Sensor
blocked, see Owner's manual" is
displayed in the instrument panel, it
means that the camera and radar sensor are
unable to detect other vehicles, cyclists, pedes-
trians and large animals in front of the vehicle
and that the vehicle's camera and radar-based
functions may be obstructed, reduced, completely
disabled or providing inaccurate responses. The following table shows some of the situations that can cause the mess\
age to be displayed, and suggested actions:
Cause
Action
The area of the windshield in front of the camera/radar sensor is dirty \
or
covered by ice or snow. Clean the windshield in front of the camera/radar sensor and remove dirt\
, ice
and snow.
Thick fog, heavy rain or snow is blocking the radar signals or the camer\
a's
range of visibility. No action. Heavy precipitation may sometimes prevent the camera/radar se\
nsor
from functioning.65
Note: This illustration is general and details may vary depending on mod\
el.

||DRIVER SUPPORT
334
Cause
Action
Water or snow is spraying/swirling up and blocking the radar signals or
the camera's range of visibility. No action. Very wet or snow-covered roads may sometimes prevent the cam-\
era/radar sensor from functioning.
There is dirt between the inside of the windshield and the camera/radar
sensor. Consult a workshop to have the area of the windshield on the inside of t\
he cam-
era's casing cleaned. An authorized Volvo workshop is recommended.
NOTEKeep the windshield in front of the camera
and radar unit clean.
Vehicle speedThe radar sensor's ability to detect a vehicle
ahead is significantly reduced if:
the speed of the vehicle ahead differs greatly
from your vehicle's speed
Limited field of visionThe radar sensor has a limited field of vision. In
some situations, it may detect a vehicle later than
expected or not at all. The radar sensor's field of vision.
The radar sensor's detection of vehicles very
close to your vehicle may be delayed in cer-
tain situations, e.g. if a vehicle pulls inbetween your vehicle and the vehicle directly
ahead. Small vehicles, such as motorcycles, or vehi-
cles that are not driving in the center of the
lane may remain undetected.
In curves, the radar may detect the wrong
vehicle or lose sight of a target vehicle.
Low trailers
Low trailer in the radar shadow.
Low trailers may also be difficult or even impossi-
ble for the radar to detect. The driver should be
extra alert when driving behind vehicles towing
low trailers when Adaptive Cruise Control or Pilot
Assist is activated.