2020 VOLVO S90 display

STARTING AND DRIVING
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* Option/accessory.401
Changing drive mode *
Select the drive mode that is adapted to the current driving conditions. The drive mode is changed using the control in the tunnel console.
Keep in mind that not all drive modes are available in all situations. To change drive mode:
1. Press the DRIVE MODE control.
> A pop-up menu will appear in the cen- ter display.
2. Roll the wheel upward or downward to the desired drive mode. 3. Press the drive mode control or tap its
button in the center display to confirm the selection.
> The selected drive mode is shown inthe instrument panel.
Related information
Drive modes
* (p. 399)
Activating and deactivating Eco drive mode using the function button (p. 404)
Eco drive mode
Eco drive mode can help make driving more
fuel-efficient and eco-friendly.
Use this mode to save fuel and promote eco- friendly driving. When
Eco mode is activated, the following
characteristics are modified:
The automatic transmission's shifting points.
Engine control and accelerator pedalresponse.
Eco Coast functionality is activated andengine braking is disabled when the accel-erator pedal is released at speedsbetween 65 and 140 km/h(40 and 87 mph).
Some of the climate system settings willbe reduced or switched off.
Information will be shown in the ECOgauge in the instrument panel to help pro-mote more eco-friendly and economicaldriving.
Coast function Eco CoastEco Coast essentially deactivates engine brak-ing, allowing the vehicle's kinetic energy to beused to roll greater distances. When the driverreleases the accelerator pedal, the transmis-sion is automatically disengaged from theengine. Engine speed is reduced to idlingspeed to reduce fuel consumption.

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STARTING AND DRIVING
* Option/accessory.
402 This function is most effective in driving situa- tions where the vehicle can roll freely for along distance, e.g. on roads with slight down-grades or when a decrease in speed is antici-pated, such as when approaching an area witha lower speed limit.
Activating Eco Coast
The function is activated when the accelerator pedal is fully released and the following condi-tions are met:
Eco drive mode is activated.
The gear selector is in
D.
The vehicle's speed is approximately 65-140 km/h (40-87 mph).
The gradient of the downgrade is less thanapproximately 6%.
COASTING will be displayed in the instrument
panel when Eco Coast is being used.
Limitations
Eco Coast is not available if
the engine and/or transmission are not at normal working temperatures
the gear selector is moved from
D to man-
ual shifting mode
the vehicle's speed is not within the65-140 km/h (40-87 mph) range
the gradient of the downgrade is morethan approximately 6%
The steering wheel paddles
* are being
used for manual shifting.
Deactivating and turning off Eco Coast
In certain situations, it may be advisable to deactivate or turn off Eco Coast so that enginebraking can be used. These situations mightinclude driving down steep hills or beforepassing another vehicle to help ensure thiscan be done as safely as possible. Deactivate Eco Coast by
pressing the accelerator or brake pedal
moving the gear selector to manual mode
Using the steering wheel paddles
* to shift.
Turn off Eco Coast by
switching to another drive mode
*
deactivating
Eco drive mode in Function
view.
It is possible to roll short distances even with- out Eco Coast in order to help conserve fuel.However, for the best fuel economy, EcoCoast should be activated and used to rolllonger distances.
Cruise control Eco CruiseWhen cruise control is activated in the Ecodrive mode, the vehicle's acceleration and deceleration will be slower than in other drivemodes to help further conserve fuel. Becauseof this, the vehicle's actual speed may beslightly above or below the set speed.
On a level road, the vehicle's actual speedmay differ from the set speed when cruisecontrol is active and the vehicle is coast-ing.
On a steep uphill gradient, the vehicle'sspeed is reduced until the transmissiondownshifts. Reduced acceleration is theninitiated in order to reach the set speed.
On a downhill gradient in which the vehi-cle is coasting, the vehicle's actual speedmay be slightly above or below the setspeed. The function uses engine brakingto keep the set speed. If necessary, thenormal brakes are also applied.

STARTING AND DRIVING
* Option/accessory.
404
Activating and deactivating Eco drive mode using the functionbutton There is a function button for
Eco drive mode
in the center display's Function view if the vehicle is not equipped with a drive modecontrol in the tunnel console.
When the engine is switched off, Eco mode is
deactivated and must therefore be reactivated each time the engine is started. ECO will be
displayed in the instrument panel when thefunction is activated.
Selecting Eco drive mode in the center
display's Function view
–Tap the Driving Mode ECO button to
activate or deactivate the function.
> An indicator light in the button will illu- minate when the function is activated.
Related information
Eco drive mode (p. 401)
Changing drive mode
* (p. 401)
Drive modes
* (p. 399)
Start/Stop function Start/Stop is a function that temporarily switches off the engine when the vehicle hasstopped, e.g. at a traffic light or in heavy traf-fic, and then starts it again automaticallywhen needed.
The Start/Stop function reduces fuel con- sumption, which helps to reduce exhaustemissions. The system makes it possible to drive more economically and climate-smart by letting theengine auto-stop when appropriate.
Related information
Driving with the Start/Stop function(p. 404)
Conditions for the Start/Stop function(p. 406)
Drive modes
* (p. 399)
Driving with the Start/Stop function
Start/stop is a function that temporarily turns off the engine when the vehicle is stationaryand then automatically starts it when needed.
The Start/Stop function is available when the ignition is started and can be activated if cer-tain conditions are met. The instrument panel indicates when the func- tion is
Available
active
not available.
All of the vehicle's ordinary systems, such aslighting, radio, etc. function normally when theengine has been auto-stopped. Certain func-tions may be temporarily reduced, however,such as the climate system's blower speed orextremely high audio system volume.
Auto-stopTo auto-stop the engine:

STARTING AND DRIVING
405

Stop the vehicle by applying the brakes and keep the brake pedal depressed. Theengine will auto-stop.
In
Comfort or Eco drive mode, the engine
may auto-stop before the vehicle has com- pletely stopped. With Adaptive Cruise Control or Pilot Assist activated, the engine will auto-stop aboutthree seconds after the vehicle has stopped.
Auto-startThe following conditions must be met for theengine to auto-start.
Release the brake pedal. The engine willauto-start and the vehicle can be driven.On an uphill gradient, Hill Start Assist (HSA 12
) will activate to help prevent the
vehicle from rolling backward.
When the Auto-hold function is activated, auto-start will be delayed until the acceler-ator is pressed.
When Adaptive Cruise Control or PilotAssist are activated, the engine will auto- start when the accelerator pedal is depressed or the
button on the left-
side steering wheel keypad is pressed.
Maintain pressure on the brake pedal and press the accelerator pedal. The enginewill auto-start.
On a downhill gradient: Release the brakepedal slightly so that the vehicle begins toroll. The engine will auto-start after a slightincrease in speed.
Symbols in the instrument panel
The symbol will be displayed in
the tachometer when the function is avail- able.
An indicator in the tachometer will point toward
when Start/Stop is active
and the engine has auto-stopped.
The
symbol will be grayed-out
when the function is not available.
No symbol will be shown when the func- tion is turned off.
The function is active and the engine has auto-stop- ped.
On vehicles with the 8-inch instrument panel, the symbol will be shown at the bottom of thespeedometer.
Related information
Deactivating the Start/Stop function(p. 406)
Conditions for the Start/Stop function(p. 406)
Start/Stop function (p. 404)
Hill Start Assist (p. 390)
Auto-hold brakes (p. 389)
12
Hill Start Assist

STARTING AND DRIVING
406
Deactivating the Start/Stop function
In certain situations, it may be advisable to turn the Start/Stop function off.
To turn off Start/Stop, tap theStart/Stop function button
in the center display's Func- tion view. The indicator lightin the button will go outwhen the function has beenturned off.
The function will remain turned off until:
it is reactivated
the drive mode is changed to
Eco.
Related information
Driving with the Start/Stop function (p. 404)
Conditions for the Start/Stop function(p. 406)
Conditions for the Start/Stop function
Certain conditions must be met for Start/ Stop to function.
If any condition is not met, this will be indi- cated in the instrument panel.
The engine does not auto-stopThe engine will not auto-stop if: The vehicle has not reached a speed of ca 10 km/h (6 mph) after starting.
After several auto-stops, the speed mustagain exceed approximately ca 10 km/h(6 mph) before the next auto-stop.
The driver has not fastened the seatbelt.
The engine is not running at its normaloperating temperature.
The ambient temperature is underapproximately -5 °C (23 °F) or overapproximately 30 °C (86 °F).
Windshield heating is activated.
The climate system settings and theactual climate in the passenger compart-ment differ.
The vehicle is in reverse.
The driver is making large steering wheelmovements.
The road gradient is very steep.
The hood is open.
Driving at high altitude and the engine hasnot reached its normal operating tempera-ture.
ABS has been activated.
Hard braking (even if the ABS system hasnot been activated).
Many starts during a short period of timehave triggered the starter motor's over-heating protection.
The exhaust system's particulate filter isfull
A trailer is connected to the vehicle's elec-trical system.
The transmission is not running at its nor-mal operating temperature.
The gear selector is in mode
M (±
).
If traffic conditions allow it (for example ina traffic jam).
The engine does not auto-startThe engine will not auto-start after an auto-stop if:
The driver is not wearing a seat belt, thegear selector is in the
P position and the
driver's door is open. The engine must bestarted normally.

STARTING AND DRIVING
* Option/accessory.
408
Leveling control * and suspension
Self-leveling and suspension functions are controlled automatically.
Rear leveling control keeps the rear section of the vehicle at the same height regardless ofload. Leveling control may also remain activewhen the vehicle is parked.
Shock absorbers (Four-C)On vehicles equipped with Four-C, the shockabsorbers are adapted to the selected drive mode and the current vehicle speed. Theshock absorbers are normally set to help opti-mize comfort and are adjusted continuouslyaccording to the road surface and the vehicle'sacceleration, braking and cornering.
TransportingWhen transporting the vehicle on a ferry, trainor truck, only secure (lash) the vehicle aroundthe tires, not using any other parts of the chas-sis. Changes in the pneumatic suspension
may occur during transport, which couldadversely affect the lashing and result in dam-age.
Symbols and messages in driver display
Symbol Message Meaning
Suspension Deactivated by userActive chassis has been switched off manually by the user.
Suspension Temporarily reduced performanceActive chassis performance has been temporarily reduced due to extensive system use. If this message appears frequently (e.g. several times in one week) contact a workshop
A
.

STARTING AND DRIVING
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* Option/accessory.411
Leveling control settings *
Turn off leveling control before lifting the vehicle with a jack to help avoid problemswith the pneumatic suspension.
Center display settings
Disable Leveling Control
In certain situations, this function must be turned off, e.g. before the vehicle is raised using a jack *. The level difference caused by
raising the vehicle with a jack could cause problems with the pneumatic suspension. Turning off the function in the center display:1. Tap
Settings in the Top view.
2. Tap
My CarParking Brake and
Suspension.
3. Select
Disable Leveling Control.
Related information
Leveling control
* and suspension (p. 408)
Loading recommendations (p. 538)
Economical driving
Drive economically and more environmentally conscious by thinking ahead and avoidingrapid starts and stops.
Adapt your driving style and speed to the cur- rent traffic conditions. Observe the following rules:
For lower fuel consumption, activate
Ecodrive mode.
Use the Eco Coast function in drive mode
Eco - engine braking is deactivated, allow-
ing the vehicle's kinetic energy to be used to roll greater distances.
Use gear
D as often as possible and avoid
using the kick-down function.
For manual gear shifting, use the highestpossible gear for the current traffic situa-tion and road conditions - fuel consump-tion is reduced at lower engine speeds (rpm). Use the gear indicator 13
.
Maintain a steady speed and a generous following distance to traffic ahead to mini-mize braking.
Fuel consumption is increased at highspeeds - air resistance increases withspeed.
The trip computer's current fuel consump-tion indicator can help promote more fuel-efficient driving.
Do not warm up the engine by idling. It isbetter to begin driving normally immedi-ately after starting the engine. A coldengine uses more fuel than a warmengine.
Whenever possible, avoid using the vehi-cle to drive short distances. The enginedoes not have time to reach a normaloperating temperature and this leads toincreased fuel consumption.
Use engine braking to brake the vehicle,when this is safe for other road users.
Maintain the correct pressure in the tiresand check pressure regularly.
The type of tires used could affect fuelconsumption - consult a retailer for adviceon suitable tires.
Remove unnecessary items from the vehi-cle - the heavier the load, the higher thefuel consumption.
Roof loads increase air resistance andincrease fuel consumption. Remove roofboxes, ski racks, etc. that are not in use.
Avoid driving with the windows open.
13
Only available in certain markets.

STARTING AND DRIVING
418
Emission controls
Three-way catalytic converter
Keep your engine properly tuned. Certain engine malfunctions, particularly involvingthe electrical, fuel or distributor ignitionsystems, may cause unusually high three-way catalytic converter temperatures. Donot continue to operate your vehicle if youdetect engine misfire, noticeable loss ofpower or other unusual operating condi-tions, such as engine overheating or back-firing. A properly tuned engine will helpavoid malfunctions that could damage thethree-way catalytic converter.
Do not park your vehicle over combustiblematerials, such as grass or leaves, whichcan come into contact with the hotexhaust system and cause such materialsto ignite under certain wind and weatherconditions.
Excessive starter cranking (in excess ofone minute), or an intermittently firing orflooded engine can cause three-way cata-lytic converter or exhaust system over-heating.
Remember that tampering or unauthor-ized modifications to the engine, theEngine Control Module, or the vehicle maybe illegal and can cause three-way cata-lytic converter or exhaust system over-heating. This includes: altering fuel injec- tion settings or components, alteringemission system components or locationor removing components, and/or repeateduse of leaded fuel.
NOTE
Unleaded fuel is required for vehicles with three-way catalytic converters.
Heated oxygen sensorsThe heated oxygen sensors monitor the oxy- gen content of the exhaust gases. Readings are fed into a control module that continuouslymonitors engine functions and controls fuelinjection. The ratio of fuel to air into the engineis continuously adjusted for efficient combus-tion to help reduce harmful emissions.
Related information

Octane rating (p. 416)
Fuel (p. 415)
Overheating of engine and transmission
In certain driving conditions, such as driving in mountainous areas or hot weather, there isa risk of the engine or transmission overheat-ing, especially when carrying heavy loads.
Engine power may be temporarily limited.
Remove any auxiliary lights mounted in front of the grille when driving in hotweather.
If the temperature in the engine's coolingsystem becomes too high, a warning sym-bol will appear in the instrument panel along with the message
Engine
temperature High temperature Stop
safely. Pull over to a safe location and let
the engine idle for a few minutes to cool down.
If the message
Engine temperature
High temperature Turn off engine orEngine coolant Level low, turn off
engine is displayed, stop the vehicle and
turn off the engine.
If the transmission begins to overheat, an alternative gear shifting program will beselected. An integrated protective functionwill also be activated, the warning symbolwill illuminate and the message
Transmission warm Reduce speed to
lower temperature or Transmission hot
Stop safely, wait for cooling will be dis-