instrument panel VOLVO S90 TWIN ENGINE 2020 Repair Manual

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DRIVER SUPPORT
* Option/accessory.
280
Increases the time interval to the vehicle ahead
Reduces the time interval to the vehicle ahead
Target vehicle indicator: the function has detected and is following a target vehicleusing the set time interval
Symbol for time interval to the vehicle ahead
Instrument panel
Speed indicators.
Set speed.
Speed of the vehicle ahead.
The current speed of your vehicle.
Related information
Adaptive Cruise Control
* (p. 278)
Adaptive Cruise Control
* limitations
(p. 283)
Selecting and activating Adaptive Cruise Control *19
Adaptive Cruise Control (ACC 20
) must first be
selected and then activated before it can reg- ulate speed and distance.
To start the function:
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
18
Adaptive Cruise Control
19 Depending on market, this function can be either standard or optional.
20 Adaptive Cruise Control

DRIVER SUPPORT
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* 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.

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DRIVER SUPPORT
* Option/accessory.
282
WARNING
If Adaptive Cruise Control is in standby mode, the driver must intervene andregulate both speed and distance tothe vehicle ahead.
If the vehicle comes too close to a vehi-cle ahead when Adaptive Cruise Con-trol is in standby mode, the driver canbe warned of the short distance by the Distance Alert
* function.
Related information
Adaptive Cruise Control
* (p. 278)
Selecting and activating Adaptive CruiseControl
* (p. 280)
Switching between cruise control andAdaptive Cruise Control
* in the center dis-
play (p. 284)
Adaptive Cruise Control
* limitations
(p. 283)
Adaptive Cruise Control *23
standby
mode Adaptive Cruise Control (ACC 24
) can be deac-
tivated and put in standby mode. This may happen automatically or be due to driverintervention.
Standby mode means that the function is selected in the instrument panel but not acti-vated. In standby mode, Adaptive Cruise Con-trol will not regulate speed or distance to thevehicle ahead.
Standby mode due to action by the
driver
Adaptive Cruise Control will be deactivatedand put in standby mode if any of the follow-ing 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.
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.
WARNING
If Adaptive Cruise Control is in standby mode, the driver must intervene andregulate both speed and distance tothe vehicle ahead.
If the vehicle comes too close to a vehi-cle ahead when Adaptive Cruise Con-trol is in standby mode, the driver canbe warned of the short distance by the Distance Alert
* function.
Automatic standby modeAdaptive Cruise Control is dependent on other systems, such as Electronic Stability Control (ESC 25
). If any of these other systems stops
working, Adaptive Cruise Control will be auto- matically deactivated.
21 Depending on market, this function can be either standard or optional.
22 Adaptive Cruise Control
23 Depending on market, this function can be either standard or optional.
24 Adaptive Cruise Control
25 Electronic Stability Control

DRIVER SUPPORT
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* Option/accessory.283
WARNING
With automatic standby mode, the driver is warned by an acoustic signal and a mes-sage on the instrument panel.
The driver must then regulate vehicle speed, apply the brakes if necessary,and maintain a safe distance to othervehicles.
Adaptive Cruise Control may go into standbymode if: your vehicle's speed goes below 5 km/h(3 mph) and ACC cannot determine if thevehicle ahead is stationary or if it isanother object, e.g. a speed bump.
your vehicle's speed goes under 5 km/h(3 mph) and the vehicle ahead turns sothat ACC no longer has a vehicle to follow.
the driver opens the door.
the driver unbuckles the seat belt.
the engine speed (rpm) is too low/high.
one or more of the wheels lose traction.
the brake temperature is high.
the parking brake is applied.
the camera/radar sensor is covered bysnow or heavy rain (the camera lens/radarwaves are blocked).
Related information

Adaptive Cruise Control
* (p. 278)
Selecting and activating Adaptive Cruise Control
* (p. 280)
Deactivating Adaptive Cruise Control
*
(p. 281)
Adaptive Cruise Control
* limitations
(p. 283)Adaptive Cruise Control *26
limitations
Adaptive Cruise Control (ACC 27
) may have
limited functionality in certain situations.
Steep roads and/or heavy loadsAdaptive Cruise Control is primarily intended to be driven on flat roads. The function maynot be able to maintain the correct time inter-val to the vehicle ahead when driving downsteep hills. The driver should be extra attentiveand prepared to apply the brakes.
Other limitationsThe Off Road drive mode cannot be selected
if Adaptive Cruise Control is activated.
26 Depending on market, this function can be either standard or optional.
27 Adaptive Cruise Control

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DRIVER SUPPORT
* Option/accessory.
284
WARNING
This is not a collision avoidance sys- tem. The driver is always responsibleand must intervene if the system failsto detect a vehicle ahead.
The function does not brake for peopleor animals and does not brake for smallvehicles, such as bikes and motorcy-cles. Similarly, it does not brake for lowtrailers, oncoming, slow-moving or sta-tionary vehicles and objects.
Do not use the function in demandingsituations, such as in city traffic, atintersections, on slippery surfaces,with a lot of water or slush on the road,in heavy rain/snow, in poor visibility, onwinding roads, or on on/off ramps.
NOTE
The function uses the vehicle's camera and radar sensor, which has certain generallimitations.
Related information

Adaptive Cruise Control
* (p. 278)
Camera/radar sensor limitations (p. 309)
Switching between cruise control and Adaptive Cruise Control
*28
in
the center display
When the regular cruise control (CC 29
) is
selected in the instrument panel, you can switch to Adaptive Cruise Control (ACC 30
) in
the center display's Function view.
Activate or deactivate the function using this button inthe center display's Functionview.
GREEN button indicator light – Adaptive Cruise Control is deactivated and the reg-ular cruise control is in standby mode.
GRAY button indicator light – regularcruise control is deactivated and theAdaptive Cruise Control is in standbymode. A symbol in the instrument panel indicateswhich cruise control system is active
Cruise control
(CC) Adaptive Cruise
Control (ACC)
AA
A WHITE symbol: The function is active. GRAY symbol: Standby mode
Related information
Adaptive Cruise Control
* (p. 278)
Cruise control (p. 275)
28
Depending on market, this function can be either standard or optional.
29 Cruise Control
30 Adaptive Cruise Control

DRIVER SUPPORT
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* Option/accessory.285
Symbols and messages for Adaptive Cruise Control *31
A number of symbols and messages relating to Adaptive Cruise Control (ACC 32
) may be
displayed in the instrument panel and/or the head-up display *.
In the following illustration, Road Sign Infor- mation * (RSI 33
) indicates that the maximum
permitted speed is 130 km/h (80 mph).
The previous illustration shows that Adaptive Cruise Control is set to maintain a speed of110 km/h (68 mph) and that there is no targetvehicle ahead to follow.
The previous illustration shows that Adaptive Cruise Control is set to maintain a speed of110 km/h (68 mph) and is following a targetvehicle ahead, which is traveling at the samespeed.
31 Depending on market, this function can be either standard or optional.
32 Adaptive Cruise Control
33 Road Sign Information

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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.

DRIVER SUPPORT
* Option/accessory.291
NOTE
Note that the Pilot Assist function only works when the driver's hands are on thesteering wheel.
Additional markings in the instrument panel
Pilot Assist will only regulate the time interval to the vehi-cle ahead when the distancesymbol shows a vehicle (1)over the steering wheel sym-bol.
Pilot Assist's steering assistance is only activewhen the steering wheel symbol (2) changesfrom GRAY to GREEN.
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
Pilot Assist
* (p. 287)
Deactivating Pilot Assist
* (p. 291)
Pilot Assist
* limitations (p. 293)
Deactivating Pilot Assist *37
Pilot Assist can be deactivated and switched off.
1. Press the button on the steering
wheel (2).
> The symbol and markings turn gray – Pilot Assist goes into standby mode. The time interval indicator light and anysymbols for the target vehicle will goout.
2. Press the ◀ (1) or ▶ (3) buttons on the
steering wheel to select another function.
> The Pilot Assist symbol and marking (4) in the instrument panel will go out and the stored maximum speed will beerased.
WARNING
With Pilot Assist in standby mode, the driver must intervene and steer andregulate both speed and distance tothe vehicle ahead.
If the vehicle comes too close to a vehi-cle ahead when Pilot Assist is instandby mode, the driver is insteadwarned of the short distance by the Distance Alert
* function.
Related information
Adaptive Cruise Control
* (p. 278)
Selecting and activating Adaptive CruiseControl
* (p. 280)
Switching between cruise control andAdaptive Cruise Control
* in the center dis-
play (p. 284)
Adaptive Cruise Control
* limitations
(p. 283)
Temporarily deactivating steering assis-tance with Pilot Assist
* (p. 293)
37
Depending on market, this function can be either standard or optional.

DRIVER SUPPORT
* Option/accessory.
292
Pilot Assist *38
standby mode
Pilot Assist can be deactivated and put in standby mode. This may happen automati-cally 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, Pilot Assist will notregulate the speed or distance to the vehicleahead or provide steering assistance.
Standby mode due to action by the
driver
Pilot Assist will be deactivated and put instandby mode if any of the following occurs:
The brakes are applied.
The gear selector is moved to
N.
A turn signal is used for more than1 minute.
The vehicle is driven faster than the setspeed for more than 1 minute.
Automatic standby modePilot Assist is dependent on other systems, such as Electronic Stability Control (ESC 39
). If
any of these other systems stops working, Pilot Assist will be automatically deactivated.
WARNING
With automatic standby mode, the driver is warned by an acoustic signal and a mes-sage on the instrument panel.
The driver must then regulate vehicle speed, apply the brakes if necessary,and maintain a safe distance to othervehicles.
Adaptive Cruise Control may go into standbymode if, e.g.: the driver opens the door.
the brake temperature is high.
the driver's hands are not on the steering wheel.
the parking brake is applied.
the engine speed (rpm) is too low/high.
the driver unbuckles the seat belt.
one or more of the wheels lose traction.
the camera/radar sensor is covered by snow or heavy rain (the camera lens/radarwaves are blocked).
your vehicle's speed goes under 5 km/h(3 mph) and Pilot Assist cannot determineif the vehicle ahead is stationary or if it isanother object, e.g. a speed bump.
your vehicle's speed goes under 5 km/h(3 mph) and the vehicle ahead turns sothat Pilot Assist no longer has a vehicle tofollow.
Related information

Pilot Assist
* (p. 287)
Selecting and activating Pilot Assist
*
(p. 290)
Deactivating Pilot Assist
* (p. 291)
Pilot Assist
* limitations (p. 293)
38
Depending on market, this function can be either standard or optional.
39 Electronic Stability Control

DRIVER SUPPORT
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* Option/accessory.299
Setting time interval to the vehicle ahead The time interval to the vehicle ahead can be set for the functions Adaptive Cruise Control *,
Pilot Assist * and Distance Alert *.
Different time intervals to the vehicle ahead can be selectedand are shown in the instru-ment panel as 1–5 horizontalbars. The more bars, thelonger the time interval. Onebar represents an interval of
approx. 1 second to the vehicle ahead. 5 barsrepresents approx. 3 seconds.
NOTE
When the symbol in the instrument panel shows a vehicle and a steering wheel, PilotAssist follows a vehicle ahead at a presettime interval. When only a steering wheel is shown, there is no vehicle ahead within a reasona-ble distance.
NOTE
When the symbol in the instrument panel shows two vehicles, ACC is following thevehicle ahead at a preset time interval. When only one vehicle is shown, there is no vehicle ahead within a reasonable dis-tance.
Controls for setting a time interval.
Reduce the time interval
Increase the time interval
Distance indicator
–Press the (1) or (2) button to decrease or increase the time interval.
> The distance indicator (3) shows the current time interval. In order to help your vehicle follow the vehicle ahead as smoothly and comfortably as possi-ble, Adaptive Cruise Control allows the timeinterval to vary noticeably in certain situations.At low speeds, when the distance to the vehi-cle ahead is short, Adaptive Cruise Controlincreases the time interval slightly.
NOTE

The greater the vehicles' speed, the greater the distance between them fora set time interval.
Only use the time intervals permittedby local traffic regulations.
If driver support does not seem torespond with a speed increase whenactivated, it may be because the timeinterval to the vehicle ahead is shorterthan the set time interval.
WARNING
Only use a time interval suitable for the current traffic conditions.
The driver should be aware that shorttime intervals give them limited time toreact and act to any unforeseen trafficsituation.