2020 VOLVO S90 TWIN ENGINE steering

||
DRIVER SUPPORT
* Option/accessory.
276 To disengage CC:
–Press the accelerator pedal about halfway down and then release it.
> Cruise Control will automatically disen-
gage the automatic brake function and speed will only be reduced using theengine braking function.
Related information
Driver support systems (p. 268)
Selecting and activating cruise control(p. 276)
Deactivating cruise control (p. 277)
Cruise control standby mode (p. 277)
Adjusting set speed for driver support(p. 298)
Switching between cruise control and Adaptive Cruise Control
* in the center dis-
play (p. 284)
Selecting and activating cruise control The Cruise Control (CC 12
) function must be
selected and activated in order to regulate speed.
In order to start Cruise Control from standby mode, the vehicle's current speed must be30 km/h (20 mph) or higher.
1. Press the ◀ (1) or ▶ (3) button on the
steering wheel keypad and scroll to the cruise control symbol
(4).
> Gray symbol – cruise control is in standby mode. 2.
When cruise control is selected, press
(2) on the steering wheel keypad to acti- vate.
> White symbol – cruise control starts
and the current speed is stored as the maximum speed. The lowest speedthat can be set is 30 km/h (20 mph).
Reactivating cruise control to the last stored speed
–When cruise control is selected, press on the steering wheel keypad to activate.
> The Cruise Control marking in theinstrument panel will change from GRAY to WHITE and the vehicle willthen return to the most recently setspeed.
WARNING
A noticeable increase in speed may follow when the speed is resumed with the
steering wheel button.
Related information
Cruise control (p. 275)
Deactivating cruise control (p. 277)
Cruise control standby mode (p. 277)
12
Cruise Control

DRIVER SUPPORT
}}
* Option/accessory.277
Deactivating cruise control
Cruise control (CC 13
) can be deactivated and
switched off.
1. Press the button on the steering
wheel (2).
> The symbol and markings turn gray – cruise control goes into standby mode.
2. Press the ◀ (1) or ▶ (3) buttons on the
steering wheel to select another function.
> The cruise control symbol and marking (4) in the instrument panel will go out and the stored maximum speed will beerased.
Related information
Cruise control (p. 275)
Switching between cruise control and Adaptive Cruise Control
* in the center dis-
play (p. 284)
Selecting and activating cruise control (p. 276)
Cruise control standby mode (p. 277)
Cruise control standby mode Cruise control (CC 14
) can be deactivated and
put in standby mode. This may happen auto- matically or be due to driver intervention.
Standby mode means that the function is selected in the instrument panel but not acti-vated. In standby mode, cruise control will notregulate speed.
Standby mode due to action by the
driver
Cruise control will be deactivated and put instandby mode if any of the following occurs:
The brakes are applied.
The gear selector is moved to
N.
The vehicle is driven faster than the setspeed for more than 1 minute.
The driver must then control the vehicle'sspeed. Temporarily increasing speed using the accel- erator pedal, e.g. when passing another vehi-cle, will not affect the setting. The vehicle willreturn to the set speed when the acceleratorpedal is released.
13 Cruise Control
14 Cruise Control

DRIVER SUPPORT
}}
* Option/accessory.281
your vehicle's current speed must be at least 15 km/h (9 mph).
1. Press the ◀ (2) or ▶ (3) button on the
steering wheel keypad and scroll to the Adaptive Cruise Control symbol
(4).
> Gray symbol – Adaptive Cruise Control is in standby mode.
2. When Speed Limiter is selected, press
(1) on the steering wheel keypad to
activate.
> White symbol – Speed Limiter starts and the current speed is stored as the maximum speed.
Reactivating Adaptive Cruise Control to the last stored speed
–When Adaptive Cruise Control is selected, press
on the steering wheel keypad to
activate.
> The Cruise Control marking in the instrument panel will change from GRAY to WHITE and the vehicle willthen return to the most recently setspeed.
WARNING
A noticeable increase in speed may follow when the speed is resumed with the
steering wheel button.
Additional markings in the instrument panel
ACC will only regulate the time interval to the vehicleahead when the distancesymbol shows two vehicles.
A speed interval will be marked at the same time. The higher speed is the stored speed for your vehicleand the lower speed is thespeed of the vehicle ahead
(target vehicle).
Related information
Adaptive Cruise Control
* (p. 278)
Deactivating Adaptive Cruise Control
*
(p. 281)
Switching between cruise control and Adaptive Cruise Control
* in the center dis-
play (p. 284)
Adaptive Cruise Control
* limitations
(p. 283)
Deactivating Adaptive Cruise Control *21
Adaptive Cruise Control (ACC 22
) can be deac-
tivated and switched off.
1. Press the button on the steering
wheel (2).
> The symbol and markings turn gray – Adaptive Cruise Control goes into standby mode. The time interval indica-tor light and any symbols for the targetvehicle will go out.
2. Press the ◀ (1) or ▶ (3) buttons on the
steering wheel to select another function.
> The Adaptive Cruise Control symbol and marking (4) in the instrument panel will go out and the stored maximumspeed will be erased.

||
DRIVER SUPPORT
* Option/accessory.
286
Symbol Message Meaning
The symbol is WHITE. The vehicle is maintaining the stored 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 work-
shop is recommended.
Windscreen sensor Sensor blocked, see Owner's manualClean the windshield in front of the camera and radar sensors.
A text message can be erased by briefly press- ing the
button in the center of the right-
side steering wheel keypad. If the message persists: Contact a workshop ‒
an authorized Volvo workshop is recom- mended.
Related information
Adaptive Cruise Control
* (p. 278)

DRIVER SUPPORT
}}
* Option/accessory.287
Pilot Assist*34
Pilot Assist can help the driver keep the vehi- cle in the current traffic lane by providingsteering assistance and maintaining an evenspeed and a set time interval to the vehicleahead.
How Pilot Assist worksThe Pilot Assist function is primarily intended for use on highways and other major roadswhere it can help provide a more comfortableand relaxing driving experience.
The camera/radar sensor monitors the distance to the vehicle ahead and detects lane markings.
Camera and radar sensor
Distance monitor
Lane marker line monitors The driver sets the desired speed and distance to the vehicle ahead. Pilot Assist monitors thedistance to the vehicle ahead and the trafficlane's side markers using the camera andradar sensor. The system maintains the settime interval to the vehicle ahead by automati-cally adjusting your vehicle's speed and keepsyour vehicle in its lane by providing steeringassistance. If the Curve Speed Assist (CSA)
* function is
activated, it may also affect the vehicle's speed. Pilot Assist's steering assistance is based on monitoring the direction of the vehicle aheadand the traffic lane's side marker lines. Thedriver can override Pilot Assist's steering rec-ommendations at any time and steer inanother direction, e.g. to change lanes or avoidobstacles on the road. If the camera/radar sensor cannot detect the lane's side marker lines or if Pilot Assist isunable for some other reason to clearly inter-pret the lane, Pilot Assist will temporarilydeactivate steering assistance until it can onceagain interpret the lane markings. However,the speed and distance warnings will remainactive. The driver will be alerted by slightvibrations in the steering wheel that the func-tion has been temporarily deactivated.
WARNING
Pilot Assist is deactivated automatically and resumes working without prior notice.
The color of the steering wheel symbol indicates thecurrent status of steeringassistance: • GREEN indicates that steering assistance is active
• GRAY (as shown in illustration) indicates thatsteering assistance is deactivated.
34 Depending on market, this function can be either standard or optional.

||
DRIVER SUPPORT
* Option/accessory.
288
WARNING
The function is supplementary driver support intended to facilitate drivingand help make it safer – it cannot han-dle all situations in all traffic, weatherand road conditions.
The driver is advised to read all sec-tions in the Owner's Manual about thisfunction to learn of its limitations,which the driver must be aware ofbefore using the function.
Driver support functions are not a sub-stitute for the driver's attention andjudgment. The driver is always respon-sible for ensuring the vehicle is drivenin a safe manner, at the appropriatespeed, with an appropriate distance toother vehicles, and in accordance withcurrent traffic rules and regulations.
Pilot Assist regulates speed by acceleratingand braking. It is normal for the brakes to emita slight sound when they are being used toadjust speed. Pilot Assist attempts to smoothly regulate speed. The driver must apply the brakes in sit-uations requiring immediate braking. Forexample, when there are great differences in speed between vehicles or if the vehicle aheadbrakes suddenly. Due to limitations in the camera and radar sensor, braking may occur unexpectedly or not at all. Pilot Assist attempts to follow a vehicle ahead in the same lane and maintain a time intervalto that vehicle set by the driver. If the radarsensor does not detect a vehicle ahead, it willinstead maintain the speed set by the driver.This will also happen if the speed of the vehi-cle ahead exceeds the set speed for your vehi-cle.
CAUTION
Only a workshop may perform mainte- nance on driver support components – anauthorized Volvo workshop is recom-mended.
In curves and forks in the roadPilot Assist is designed to interact with the driver. The driver should never wait for steer-ing assistance from Pilot Assist, but insteadshould always be ready to increase his or herown steering efforts, particularly in curves.
When the vehicle is approaching an off-ramp or a fork in the road, the drivershould steer toward the desired lane toindicate to Pilot Assist the desired direc-tion of travel.
Pilot Assist strives to keep the vehicle in the center of the lane
When Pilot Assist provides steering assis- tance, it strives to position the vehicle in thecenter of the lane between the lane markings.To make the driving experience as smooth aspossible, the driver should permit the vehicleto find good positioning. The driver shouldcheck that the vehicle is positioned safely inthe lane and can always adjust the vehicle'sposition by applying more force to the steeringwheel. If Pilot Assist does not position the vehicle appropriately in the lane, the driver shouldturn off Pilot Assist or switch to Adaptive Cruise Control
*.
Hands on the steering wheelPilot Assist only functions if the driver's hands are on the steering wheel.
If Pilot Assist detects that thedriver's hands are not on thesteering wheel, a symbol andtext message will appear toinstruct the driver to activelysteer the vehicle.
If the driver's hands are still not detected on the steering wheel after a few seconds havepassed, the instructions to actively steer thevehicle will be repeated, accompanied by anaudible signal.

DRIVER SUPPORT
}}
* Option/accessory.289
If Pilot Assist still does not detect the driver's hands on the steering wheel after a few moreseconds have passed, the audible signal willbecome intense and the steering function willswitch off. Pilot Assist must then be reactiva- ted by pressing the
button on the steering
wheel.
Related information
Driver support systems (p. 268)
Selecting and activating Pilot Assist
*
(p. 290)
Pilot Assist
* limitations (p. 293)
Pilot Assist
* controls and display (p. 289)
Pilot Assist
* symbols and messages
(p. 295)
Adjusting set speed for driver support (p. 298)
Setting time interval to the vehicle ahead(p. 299)
Switching target vehicles with driver sup-port (p. 297)
Collision risk warning from driver support(p. 296)
Auto-hold braking with driver support(p. 300)
Passing assistance (p. 304)
Pilot Assist
*35
controls and display
A summary of how Pilot Assist is controlled using the right-side steering wheel keypadand how the function is shown in the display.
Controls
Function buttons and symbols.
▶ : Switches from Adaptive Cruise Control *
to Pilot Assist
: From standby mode - activates Pilot
Assist and sets the current speed
: From active mode - deactivates/
puts Pilot Assist in standby mode
: Activates Pilot Assist from standby
mode and resumes the set speed and time interval
: Increases the set speed
: Reduces the set speed
Increases the time interval to the vehicle ahead
Reduces the time interval to the vehicle ahead
◀ : Switches from Pilot Assist to Adaptive
Cruise Control
Function symbol
Symbols for target vehicle
Symbol for time interval to the vehicle ahead
Symbol for activated/deactivated steering assistance
35 Depending on market, this function can be either standard or optional.

||
DRIVER SUPPORT
* Option/accessory.
290
Instrument panel
Speed indicators.
Set speed
Speed of the vehicle ahead
The current speed of your vehicle
Related information
Pilot Assist
* (p. 287)
Selecting and activating Pilot Assist *36
Pilot Assist must first be selected and then activated before it can regulate speed anddistance and provide steering assistance.
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 (targetvehicle) within a reasonable distance or your vehicle's current speed must be atleast 15 km/h (9 mph).
1. Press the ◀ (1) or ▶ (3) button on the
steering wheel keypad and scroll to the Pilot Assist symbol
(4).
> Gray symbol – Pilot Assist is in standby mode.
2. When Pilot Assist is selected, press
(2) on the steering wheel keypad to acti- vate.
> White symbol – Pilot Assist starts and
the current speed is stored as the maxi- mum speed.
Reactivating Pilot Assist to the last stored speed
–When Pilot Assist is selected, press on the steering wheel keypad to activate.
> The Cruise Control marking in theinstrument panel will change from GRAY to WHITE and the vehicle willthen return to the most recently setspeed.
WARNING
A noticeable increase in speed may follow when the speed is resumed with the
steering wheel button.
36Depending on market, this function can be either standard or optional.