2018 VOLVO XC90 TWIN ENGINE warning

DRIVER SUPPORT
* Option/accessory.273
WARNINGWhile the power steering is working at
reduced power, the driver support functions
with steering assistance are not available.
In such a situation, the driver display shows
the
Power steering failure or Power
Steering Assist Temporarily Reduced message, combined with a STEERING
WHEEL symbol.
Changing the level of steering wheel
resistance*
To change the level of steering wheel resistance,
see the description of the INDIVIDUAL option
under "Available drive modes" in the "Drive
modes" section.
On models not equipped with drive mode con-
trols and the INDIVIDUAL option, steering wheel
resistance can instead be set in the center dis-
play's Top view under:
Settings My Car Drive Modes
Steering force
Steering wheel resistance settings cannot be
accessed when turning at speeds above
10 km/h (6 mph).
Related information
•
Drive modes (p. 445)
• Pilot Assist (p. 311) •
Lane Keeping Aid (p. 364)
• Steering assistance at risk of collision
(p. 372)
• Park Assist Pilot* (p. 395) Stability system Roll Stability
Control
The Roll Stability Control (RSC 1
) system helps
minimize the risk of a rollover in the event of e.g.
a sudden evasive maneuver or if the vehicle
begins to skid.
The RSC system monitors the lateral angle at
which the vehicle is leaning and registers any
changes. Using this information, the system cal-
culates the likelihood of a rollover. If there is an
imminent risk of a rollover, Electronic Stability
Control is activated, engine torque is reduced and
brakes are applied to one or more of the wheels
until the vehicle has regained stability.
WARNING The vehicle

DRIVER SUPPORT
* Option/accessory.
274 Electronic Stability Control
The Electronic Stability Control (ESC 2
) function
helps the driver avoid skidding and improves the
vehicle's directional stability.
This symbol will be displayed in
the instrument panel when the
ESC system is intervening.
When the ESC has intervened
to apply the brakes, a pulsing
sound may be heard and the
vehicle may accelerate more slowly than expec-
ted when the accelerator pedal is depressed. The ESC system consists of the following sub-
functions:
•
Stability control 3
• Spin control and active yaw control
• Engine drag control
• Trailer Stability Assist
WARNING •
The Electronic Stability Control system
ESC is supplementary driver support
intended to facilitate driving and make it
safer – it cannot handle all situations in
all traffic, weather and road conditions.
• ESC is not a substitute for the driver's
attention and judgment. The driver is
always responsible for ensuring the vehi-
cle is driven in a safe manner, at the
appropriate speed, with an appropriate
distance to other vehicles, and in accord-
ance with current traffic rules and regula-
tions.
Stability control 3This function helps control the driving and brak-
ing force of each individual wheel in an attempt
to stabilize the vehicle.
Spin control and active yaw controlThis function is active at low speeds and brakes
the wheels that are spinning to transfer additional
power from wheels that are not spinning.
This function also helps prevent the wheels from
spinning while the vehicle is accelerating.
Engine drag control
Engine drag control (EDC
4
) helps prevent inad-
vertent wheel lock, e.g. after downshifting or
using engine braking when driving at low speeds
on a slippery surface.
Inadvertent wheel lock while driving could impair
the driver's ability to steer the vehicle.
Trailer Stability Assist* 5
Trailer Stability Assist (TSA
6
) is designed to help
stabilize a vehicle that is towing a trailer if the
vehicle and trailer have begun to sway. For more
information, see "Trailer Stability Assist".
NOTE The TSA function is deactivated if
ESC Sport
Mode is activated.
Related information
• Electronic Stability Control Sport mode
(p. 275)
• Activating/deactivating Sport mode in Elec-
tronic Stability Control (p. 275) 1
Roll Stability Control
2 Electronic Stability Control
3 Also called traction control.
4 Engine Drag Control
5Trailer Stability Assist is included if the vehicle is equipped with a V\
olvo original towbar.6 Trailer Stability Assist

DRIVER SUPPORT
278Speed limiter
A Speed Limiter (SL 11
) could be described as a
reverse cruise control. The driver regulates the
vehicle's speed using the accelerator pedal, but
is prevented by the Speed Limiter from inadver-
tently exceeding a preset maximum speed. Function buttons and symbols
12
. : Activates the Speed Limiter from
standby mode and resumes the set maxi-
mum speed. : Increases the set maximum speed
: From standby mode - activates the
Speed Limiter and sets the current speed : From active mode - deactivates/puts
the Speed Limiter in standby mode : Reduces the set maximum speed
Marker for set maximum speed
The vehicle's current speed
The set maximum speed
WARNING
•
The Speed Limiter function is supple-
mentary driver support intended to facili-
tate driving and help make it safer – it
cannot handle all situations in all traffic,
weather and road conditions.
• The driver must always pay attention to
traffic conditions and take action if the
Speed Limiter is not maintaining a suita-
ble speed.
• The Speed Limiter is not a substitute for
the driver's attention and judgment. The
driver is always responsible for ensuring
the vehicle is driven in a safe manner, at
the appropriate speed, with an appropri-
ate distance to other vehicles, and in
accordance with current traffic rules and
regulations.
Related information
•Cruise Control limitations (p. 282)
• Activating and starting Speed Limiter
(p. 279)
• Managing Speed Limiter speed (p. 279)
• Deactivating and putting Speed Limiter in
standby mode (p. 280)
• Reactivating Speed Limiter from standby
mode (p. 281)
• Turning off Cruise Control (p. 281)
• Automatic Speed Limiter (p. 282)
• Automatic Speed Limiter limitations (p. 285)
• Activating/deactivating Automatic Speed
Limiter (p. 284)
• Changing Automatic Speed Limiter tolerance
(p. 285) 11
Speed Limiter
12 Note: This illustration is general and details may vary depending on mod\
el.

DRIVER SUPPORT
283
WARNING•
The ASL function is supplementary driver
support intended to facilitate driving and
help make it safer – it cannot handle all
situations in all traffic, weather and road
conditions.
• Even if the driver can clearly see the
speed limit sign, the speed information
from the Road Sign Information (RSI)
function to ASL may be incorrect. In such
cases, the driver must intervene and
accelerate or brake to an appropriate
speed.
• ASL is not a substitute for the driver's
attention and judgment. The driver is
always responsible for ensuring the vehi-
cle is driven in a safe manner, at the
appropriate speed, with an appropriate
distance to other vehicles, and in accord-
ance with current traffic rules and regula-
tions.
• See also the heading "Road Sign Infor-
mation limitations".Is SL or ASL active?The symbols in the instrument panel indicate
which Speed Limiter function is active: Symbol
SLASL A
✓ ✓ Road sign symbol
B
after "70" = ASL is
activated. ✓ A
WHITE symbol: The function is active. GRAY symbol: Standby
mode.
B See "ASL symbol" below for an explanation of the symbol's dif-
ferent colors.
ASL symbol
The road sign symbol (next to the
stored speed ("70" here) in the center
of the speedometer) can be displayed
in three different colors, which are
explained in the following table: Road sign
symbol's color Explanation
Greenish-yel- low ASL is active
Gray

ASL is in standby mode
Amber/orange ASL is temporarily in standby mode, e.g. because
a speed limit sign could not
be read.
Related information
•Speed limiter (p. 278)

DRIVER SUPPORT
284Activating/deactivating Automatic
Speed Limiter
The Automatic Speed Limiter (ASL 21
) is a sup-
plement to the Speed Limiter (SL 22
) and can be
activated/deactivated.
Activating ASLThe Speed Sign Assist but-
ton is located in the center dis-
play's Function view. To activate the Automatic Speed Limiter:
1.
Tap the Speed Sign Assist button.
>

ASL will go into standby mode and a
green indicator light will illuminate. A road
sign symbol will be displayed in the center
of the speedometer in the instrument
panel.
2. Pressing the button on the steering
wheel keypad.
>

ASL will be activated and set to the vehi-
cle's current speed.
NOTE •
If the Automatic Speed Limiter function is
activated, road sign information is shown
in the driver display even if RSI is not
activated.
• To remove road sign information from the
driver display, you must deactivate both
Automatic Speed Limiter and RSI.
• When the Automatic Speed Limiter func-
tion is activated but RSI is deactivated, no
warnings are given from RSI. In this situa-
tion, settings for RSI cannot be adjusted
either - to be able to adjust settings as
well as receive warnings, RSI must be
activated.Deactivating ASLTo deactivate the Automatic Speed Limiter:
–
Tap the
Speed Sign Assist button in Func-
tion view.
>
ASL will be deactivated, the indicator light
in the button will be GRAY and SL will be
activated instead.
WARNING The vehicle will no longer follow the posted
maximum speed after switching from ASL to
SL – it then only follows the maximum speed
stored in the memory.
Related information
•
Speed limiter (p. 278) 21
Automatic Speed Limiter
22 Speed Limiter

DRIVER SUPPORT
* Option/accessory.
286 Cruise control
Cruise Control (CC 26
) helps the driver maintain
an even speed to provide a more relaxing driving
experience on highways and long, straight roads
with even traffic flows.
Overview Function buttons and symbols
27
. : Activates Cruise Control from standby
mode and resumes the set speed : Increases the set speed
: From standby mode - activates Cruise
Control and sets the current speed : From active mode - deactivates/puts
Cruise Control in standby mode : Reduces the set speed
Marker for set speed
The vehicle's current speed
Set speed
NOTE
In vehicles equipped with Adaptive Cruise
Control*, it is possible to switch between
cruise control and Adaptive Cruise Control –
see the heading "Switching between CC and
ACC".
WARNING •
The cruise control function is supplemen-
tary driver support intended to facilitate
driving and help make it safer – it cannot
handle all situations in all traffic, weather
and road conditions.
• The driver is advised to read all sections
in the Owner's Manual about this function
to learn of its limitations, which the driver
must be aware of before using the func-
tion (see the link list at the end of this
article).
• Cruise control is not a substitute for the
driver's attention and judgment. The driver
is always responsible for ensuring the
vehicle is driven in a safe manner, at the
appropriate speed, with an appropriate
distance to other vehicles, and in accord-
ance with current traffic rules and regula-
tions.
Related information
• Activating and starting Cruise Control
(p. 287)
• Managing Cruise Control speed (p. 288)
• Deactivating and putting Cruise Control in
standby mode (p. 289) 26
Cruise Control
27 Note: This illustration is general and details may vary depending on mod\
el.

DRIVER SUPPORT
290Reactivating Cruise Control from
standby mode
Cruise Control (CC 32
) can be temporarily put
into standby mode and then reactivated.
Reactivating Cruise Control from
standby mode Note: This illustration is general and details may vary
depending on model.
To start Cruise Control from standby mode:
–
Press the button on the steering wheel
(1).
>

The Cruise Control marking in the instru-
ment panel will change from GRAY to
WHITE and the vehicle will then return to
the most recently set speed.
or To start Cruise Control from standby mode:
– Press the button on the steering wheel
(2).
>

The Cruise Control markings and symbols
in the instrument panel will change from
GRAY to WHITE and the vehicle's current
speed will be set.
WARNING A noticeable increase in speed may follow
when the speed is resumed with the
steering wheel button.
Related information
•
Cruise control (p. 286) Switching off Cruise Control
Cruise control (Cruise Control - CC) can be
turned off. 32
Cruise Control

||DRIVER SUPPORT
* Option/accessory.
292 Distance Alert warning light on the windshield
35
.
A warning light will appear on the windshield and
glow steadily if the time interval to the vehicle
ahead is shorter than the set time interval.
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.
NOTE •
Distance Alert is only available in vehicles
that can display information on the wind-
shield with a head-up display.
• Distance Alert is deactivated while Adap-
tive Cruise Control is active.
WARNING Distance Alert only reacts of the time interval
to the vehicle ahead is shorter than the preset
value – vehicle speed is not affected.
NOTE
Depending on market, this function may be
either Standard or Optional.
Related information
•
Head-up display for Distance Alert (p. 292)
• Activating/deactivating Distance Alert
(p. 293)
• Setting a time interval for Distance Alert
(p. 293)
• Distance Alert limitations (p. 294) Head-up display for Distance Alert
36
In vehicles equipped with a head-up display*, a
symbol will be displayed on the windshield as
long as the time interval to the vehicle ahead is
shorter than the set time interval. Distance Alert warning symbol on the windshield
37
.
For this to be possible, however, the
Show
Driver Support function must be activated
under Settings in the center display's menus (see
"Head-up display" for instructions). 35
Note: This illustration is general and details may vary depending on mod\
el.
36 The Distance Alert function is only available in vehicles that can displ\
ay information on the windshield with a head-up display.
37 Note: This illustration is general and details may vary depending on mod\
el.