2018 VOLVO XC90 warning

DRIVER SUPPORT
* Option/accessory.271
WARNING
While the power steering is working at reduced power, the driver support functionswith 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 optionunder "Available drive modes" in the "Drivemodes" section. On models not equipped with drive mode con- trols and the INDIVIDUAL option, steering wheelresistance can instead be set in the center dis-play's Top view under:
SettingsMy CarDrive ModesSteering force
Steering wheel resistance settings cannot be accessed when turning at speeds above10 km/h (6 mph).
Related information
•Drive modes
* (p. 423)
• Pilot Assist (p. 309) •
Lane Keeping Aid (p. 362)
• Steering assistance at risk of collision(p. 370)
• Park Assist Pilot
* (p. 393)
Stability system Roll StabilityControl
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 vehiclebegins to skid.
The RSC system monitors the lateral angle at which the vehicle is leaning and registers anychanges. Using this information, the system cal-culates the likelihood of a rollover. If there is animminent risk of a rollover, Electronic StabilityControl is activated, engine torque is reduced andbrakes are applied to one or more of the wheelsuntil the vehicle has regained stability.
WARNING
The vehicle

DRIVER SUPPORT
* Option/accessory.
272
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 theESC system is intervening. When the ESC has intervened to apply the brakes, a pulsingsound 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 supportintended to facilitate driving and make itsafer – it cannot handle all situations inall traffic, weather and road conditions.
• ESC is not a substitute for the driver'sattention and judgment. The driver isalways responsible for ensuring the vehi-cle is driven in a safe manner, at theappropriate speed, with an appropriatedistance 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 attemptto stabilize the vehicle.
Spin control and active yaw controlThis function is active at low speeds and brakesthe wheels that are spinning to transfer additionalpower 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 orusing engine braking when driving at low speedson 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 thevehicle and trailer have begun to sway. For moreinformation, see "Trailer Stability Assist".
NOTE
The TSA function is deactivated if ESC Sport
Mode is activated.
Related information
• Electronic Stability Control Sport mode (p. 273)
• Activating/deactivating Sport mode in Elec-tronic Stability Control (p. 273)
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 Volvo original towbar.6
Trailer Stability Assist

DRIVER SUPPORT
276
Speed limiterA Speed Limiter (SL 11
) could be described as a
reverse cruise control. The driver regulates the vehicle's speed using the accelerator pedal, butis 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 – itcannot handle all situations in all traffic,weather and road conditions.
• The driver must always pay attention totraffic conditions and take action if theSpeed Limiter is not maintaining a suita-ble speed.
• The Speed Limiter is not a substitute forthe driver's attention and judgment. Thedriver is always responsible for ensuringthe vehicle is driven in a safe manner, atthe appropriate speed, with an appropri-ate distance to other vehicles, and inaccordance with current traffic rules andregulations.
Related information
•Cruise Control limitations (p. 280)
• Activating and starting Speed Limiter(p. 277)
• Managing Speed Limiter speed (p. 277)
• Deactivating and putting Speed Limiter instandby mode (p. 278)
• Reactivating Speed Limiter from standbymode (p. 279)
• Turning off Cruise Control (p. 279)
• Automatic Speed Limiter (p. 280)
• Automatic Speed Limiter limitations (p. 283)
• Activating/deactivating Automatic SpeedLimiter (p. 282)
• Changing Automatic Speed Limiter tolerance(p. 283)
11
Speed Limiter
12 Note: This illustration is general and details may vary depending on model.

DRIVER SUPPORT
281
WARNING
•The ASL function is supplementary driver support intended to facilitate driving andhelp make it safer – it cannot handle allsituations in all traffic, weather and roadconditions.
• Even if the driver can clearly see thespeed limit sign, the speed informationfrom the Road Sign Information (RSI)function to ASL may be incorrect. In suchcases, the driver must intervene andaccelerate or brake to an appropriatespeed.
• ASL is not a substitute for the driver'sattention and judgment. The driver isalways responsible for ensuring the vehi-cle is driven in a safe manner, at theappropriate speed, with an appropriatedistance 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 indicatewhich Speed Limiter function is active:
SymbolSLASL
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 centerof the speedometer) can be displayedin three different colors, which are
explained in the following table:
Road signsymbol's colorExplanation
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 notbe read.
Related information
•Speed limiter (p. 276)

DRIVER SUPPORT
282
Activating/deactivating AutomaticSpeed 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 centerof the speedometer in the instrumentpanel.
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 shownin the driver display even if RSI is notactivated.
• 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, nowarnings are given from RSI. In this situa-tion, settings for RSI cannot be adjustedeither - to be able to adjust settings aswell as receive warnings, RSI must beactivated.
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 toSL – it then only follows the maximum speedstored in the memory.
Related information
• Speed limiter (p. 276)
21
Automatic Speed Limiter
22 Speed Limiter

DRIVER SUPPORT
* Option/accessory.
284
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 roadswith 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 andACC".
WARNING
• The cruise control function is supplemen- tary driver support intended to facilitatedriving and help make it safer – it cannothandle all situations in all traffic, weatherand road conditions.
• The driver is advised to read all sectionsin the Owner's Manual about this functionto learn of its limitations, which the drivermust be aware of before using the func-tion (see the link list at the end of thisarticle).
• Cruise control is not a substitute for thedriver's attention and judgment. The driveris always responsible for ensuring thevehicle is driven in a safe manner, at theappropriate speed, with an appropriatedistance to other vehicles, and in accord-ance with current traffic rules and regula-tions.
Related information
• Activating and starting Cruise Control(p. 285)
• Managing Cruise Control speed (p. 286)
• Deactivating and putting Cruise Control instandby mode (p. 287)
26
Cruise Control
27 Note: This illustration is general and details may vary depending on model.

DRIVER SUPPORT
288
Reactivating Cruise Control fromstandby modeCruise 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 tothe 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 currentspeed 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. 284)
Switching off Cruise Control
Cruise control (Cruise Control - CC) can be turned off.
32 Cruise Control

||
DRIVER SUPPORT
* Option/accessory.
290
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 vehicleahead 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 thedriver is wearing sunglasses or is not lookingstraight 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 presetvalue – 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. 290)
• Activating/deactivating Distance Alert (p. 291)
• Setting a time interval for Distance Alert(p. 291)
• Distance Alert limitations (p. 292)
Head-up display for Distance Alert36
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 isshorter 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 model.
36 The Distance Alert function is only available in vehicles that can display information on the windshield with a head-up display.
37 Note: This illustration is general and details may vary depending on model.