2019 VOLVO XC90 TWIN ENGINE trailer

DRIVER SUPPORT
354Rear Collision Warning
The Rear Collision Warning (
RCW) function can
help the driver avoid rear-end collisions from
vehicles approaching from behind.
RCW is automatically activated each time the
engine is started.
RCW can warn the driver of a potential collision
with vehicles approaching from behind by rapidly
flashing the turn signals.
If, at a speed below 30 km/h (20 mph), the RCW
function detects that the car is in danger of being
hit from behind, the seatbelt tensioners may ten-
sion the front seatbelts and activate the Whiplash
Protection System safety system.
Immediately before a collision from behind, RCW
may also activate the foot brake in order to
reduce the forward acceleration of the car during
the collision. However, the brakes will only be
applied if your vehicle is stationary. The brakes
will be immediately released if the accelerator
pedal is depressed.
Related information
Rear Collision Warning limitations (p. 354)
Whiplash Protection System (p. 46) Rear Collision Warning limitations
In some situations, it may be difficult for RCW to
warn the driver of a collision risk.
This may be the case if: the vehicle approaching from the rear is
detected at a late stage
the vehicle approaching from the rear
changes lanes at a late stage
the vehicle approaching from the rear is mov-
ing at a speed above 80 km/h (50 mph)
a trailer, bicycle holder or similar is con-
nected to the vehicle's electrical system - the
RCW function will then be automatically
deactivated.
NOTE In certain markets RCW does not warn with
the direction indicators due to local traffic
regulations – in such cases, that part of the
function is deactivated.
NOTE The warning with direction indicators for Rear
Collision Warning is deactivated if the colli-
sion warning distance in the City Safety func-
tion is set to the lowest level "
Late".
The seat belt tensioning and braking func-
tions remain active.
Related information
Rear Collision Warning (p. 354)

DRIVER SUPPORT
* Option/accessory.357
Related information
BLIS* (p. 355) BLIS limitations
BLIS 78
functionality may be reduced in certain
situations. Keep the marked area clean (on both the left and right
sides of the vehicle)
79
.
Examples of limitations:
Dirt, ice and snow covering the sensors may
reduce functionality and prevent the system
from providing warnings.
The BLIS function is automatically deacti-
vated if a trailer, bicycle holder or similar is
connected to the vehicle's electrical system.
For BLIS to function optimally, bicycle hold-
ers, luggage racks or similar should not be
mounted on the vehicle's towbar.WARNING
BLIS does not work in sharp curves.
BLIS does not work when the vehicle is
being reversed.
Related information

BLIS* (p. 355) 76
Blind Spot Information
77 Note: This illustration is general and details may vary depending on mod\
el.
78 Blind Spot Information
79 Note: This illustration is general and details may vary depending on mod\
el.

DRIVER SUPPORT
* Option/accessory.359
BLIS messages
A number of messages related to BLIS 81
may
be displayed in the instrument panel.
Some examples of symbols and messages are shown in the table below. Message
Meaning
Blind spot sensor
Service required The system is not functioning as intended. Contact a workshop ‒ an authorized Volvo workshop is recommended.
Blind spot system off
Trailer attached BLIS and CTA have been deactivated because a trailer has been connected \
to the vehicle's electrical system.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
BLIS* (p. 355) 81
Blind Spot Information

||DRIVER SUPPORT
* Option/accessory.
362
Examples of further limitations
Dirt, ice and snow covering the sensors may
reduce functionality and prevent the system
from providing warnings. For additional infor-
mation, see the section "Recommended
maintenance for Cross Traffic Alert".
CTA is automatically deactivated if a trailer,
bicycle holder or similar is connected to the
vehicle's electrical system.
For CTA to function optimally, bicycle hold-
ers, luggage racks or similar should not be
mounted on the vehicle's towbar.
Related information

Cross Traffic Alert* (p. 360)
Recommended maintenance for Cross
Traffic Alert (p. 362) Recommended maintenance for
Cross Traffic Alert

For optimal performance, it is important to
keep the areas in front of the sensors clean.
Do not attach any objects, tape or decals to
the surface of the sensors. Keep the marked area clean (on both the left and right
sides of the vehicle)
88
.
The CTA sensors are located on the inside of
each of the rear fenders/bumpers and are also
used by the BLIS 89
and Rear Collision Warning
functions.
CAUTION Repair of BLIS and CTA components or
repainting of the bumper may only be per-
formed by a workshop – an authorized Volvo
workshop is recommended.
Related information

Cross Traffic Alert* (p. 360)
BLIS* (p. 355)
Rear Collision Warning (p. 354) 88
Note: This illustration is general and details may vary depending on mod\
el.
89 Blind Spot Information

DRIVER SUPPORT
* Option/accessory.363
Cross Traffic Alert messages
A number of messages related to CTA 90
may be
displayed in the instrument panel.
Some examples of symbols and messages are shown in the table below. Message
Meaning
Blind spot sensor
Service required The system is not functioning as intended. Contact a workshop ‒ an authorized Volvo workshop is recommended.
Blind spot system off
Trailer attached BLIS and CTA have been deactivated because a trailer has been connected \
to the vehicle's electrical system.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
Cross Traffic Alert* (p. 360) 90
Cross Traffic Alert

DRIVER SUPPORT
}}
* Option/accessory. 369
For more information on Speed Warnings in con-
junction with speed cameras, also see “Road
Sign Information with Speed Warning and Set-
tings” and “Road Sign Information limitations”.
NOTE

For an audible alert to be provided if the
speed is exceeded, the
Speed Limit
Warning function must be activated and
the
Road Sign Audio Warning sub-
function must be On. Audible alerts are
provided if the vehicle's speed exceeds
the speed displayed by RSI in the instru-
ment panel.
It is possible to receive an audible alert
for speed cameras regardless of the vehi-
cle's speed, whether or not the speed
limit is exceeded, and even if the
Road
Sign Audio Warning function is deacti- vated: See heading "Speed camerawarning On/Off" in section "Road Sign
Information with Speed Warning and set-
tings" and select Speed Camera Audio
Warning there.
Information about speed cameras on the
navigation map is not available for all
markets/areas.
Related information

Road Sign Information* (p. 364)
Road Sign Information with Speed Warning
and Settings (p. 367)
Road Sign Information limitations (p. 369) Road Sign Information limitations
Road Sign Information (RSI 101
) functionality may
be reduced in certain situations.
RSI could have reduced functionality due to e.g.:
faded road signs
signs located in a curve in the road
twisted or damaged signs
signs positioned high above the road
fully/partially obstructed or poorly positioned
signs
signs partially or fully covered by frost, snow
and/or dirt
digital road maps 102
that are outdated, incor-
rect or do not contain speed information 103
.
NOTE Certain types of bike carriers that are con-
nected to the trailer socket may be interpre-
ted as a connected trailer by the RSI function.
In such cases, the instrument panel may indi-
cate incorrect speed information.
101
Road Sign Information
102 Vehicles equipped with Sensus Navigation*.
103 Map data and speed information is not available for all areas.

DRIVER SUPPORT
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391
Park Assist front, rear and sides
Park Assist has different parameters depending
on which part of the vehicle is approaching an
obstacle.
Front camera Continuous tone warning signal when the obstacle is
less than approx. 30 cm (1 ft) from the vehicle
112
.
Park Assist's front sensors are automatically acti-
vated when the engine is started. They are active
at speeds below 10 km/h (6 mph).
The distance monitored extends approx. 80 cm
(2.5 ft) in front of the vehicle.
NOTE The Parking Assist system is deactivated
when the parking brake is applied or when P
is selected on vehicles with automatic trans-
mission.
CAUTION
When installing auxiliary lights: Make sure
these do not obscure the sensors – the auxili-
ary lights could be perceived as an obstacle.
Back
Continuous tone warning signal when the obstacle is
less than approx. 30 cm (1 ft) from the vehicle
112The rear sensors will be activated if the vehicle
begins rolling backward or if reverse gear is
engaged.
The distance monitored extends
approx. 1.5 meters (5 ft) behind the vehicle.
The Parking Assist system's rear sensors will be
automatically deactivated if the vehicle is backing
up with a trailer connected to the vehicle's elec-
trical system.
NOTE
When reversing with e.g. a trailer or bike car-
rier on the trailer hitch – without Volvo original
trailer cables – the Parking Assist system may
have to be turned off manually to prevent the
sensors from reacting to these.
112
The illustration is generic - details may vary according to vehicle mode\
l.

DRIVER SUPPORT
* Option/accessory.393
Park Assist limitations
Park Assist may not be able to detect all condi-
tions in all situations and functionality may there-
fore be limited in certain cases.
The driver should be aware of the following limi-
tations for Park Assist:
WARNING Be extra cautious when
reversing if this symbol is
shown when a trailer, bike
carrier or similar is attached
and electrically connected
to the vehicle.
The symbol indicates that
the rear parking assist sensors are deacti-
vated and will not warn of any obstacles.
CAUTION Objects such as chains, thin and glossy poles
or low obstacles may end up in the "signal
shadow" and then go temporarily undetected
by the sensors – the pulsating tone may then
unexpectedly stop instead of becoming a
constant tone as expected.
The sensors cannot detect high objects, such
as protruding ramps.
In such situations, pay extra attention and
maneuver/drive the vehicle very slowly or
stop the current parking maneuver –
there may be a high risk of damage to
the vehicle or other objects since infor-
mation from the sensors is not always
reliable in such situations.
CAUTION In some circumstances, the Park Assist Sys-
tem may produce false warnings due to exter-
nal sound sources with the same ultrasonic
frequencies as those the system works with.
Examples of such sources are horns, wet tires
on asphalt, pneumatic brakes, exhaust noise
from motorcycles, etc.
NOTE When a trailer hitch is configured with the
vehicle electrical system, the trailer hitch pro-
trusion is included when the function meas-
ures the distance to objects behind the vehi-
cle.
Related information

Park Assist* (p. 390)