engine VOLVO S90 2020 Quick Guide

STARTING AND DRIVING
397
Shiftlock The automatic transmission's shiftlock func- tion helps prevent inadvertently moving thegear selector between different positions.
There are two types of shiftlocks: mechanical and automatic.
Mechanical shiftlock
Shiftlock for vehicles with large gear selectors.
The gear selector can be moved back and forth between N and D. The other positions
have a shiftlock that is operated using the lockbutton on the gear selector. Press and hold the shiftlock button and move the gear selector forward or backwardbetween P, R , N and D.
Automatic shiftlockThe automatic shiftlock has a separate safetysystem.
From Park - P
To move the gear selector from P to another
gear, the brake pedal must be depressed and the ignition in mode II. For vehicles with the
small gear selector, the engine must be run-ning.
From Neutral - N
If the gear selector is in N and the vehicle has
been stationary for at least 3 seconds (with or without the engine running), the gear selectorwill be locked in that position. To move the gear selector from N to another
gear, the brake pedal must be depressed and the ignition in mode II. For vehicles with the
small gear selector, the engine must be run-ning.
Messages in the instrument panelIf the gear selector is locked in position, amessage will appear in the instrument panel, e.g.
Gear lever Press brake pedal to
activate gear lever.
There is no mechanical shiftlock function. 6
Related information

Automatic transmission (p. 391)
Gear selector positions for automatic transmissions (p. 392)
Deactivating the automatic shiftlock(p. 398)
6
Applies for vehicles with the small gear selector

STARTING AND DRIVING
398
Deactivating the automatic shiftlock7
If the vehicle does not have electrical current, the automatic shiftlock may be disengagedon vehicles equipped with the large gearselector. The shiftlock cannot be disengagedon vehicles equipped with the small gearselector.
Large gear selector overview.
If the vehicle cannot be driven (e.g. due to a discharged battery), the gear selector must bemoved to the N position so that the vehicle
can be moved.
Lift the rubber mat in the storage com- partment in front of the gear selector.Locate the hole with a spring-loaded but-ton in the bottom of the compartment.
Press a small screwdriver or similar object into the hole and hold it down.
Move the gear selector to N and release
the button.
4. Replace the rubber mat.
Overview of small gear selector, where it is not pos- sible to deactivate the shiftlock.
Related information
Shiftlock (p. 397)
Automatic transmission (p. 391)
The kickdown function Kickdown can be used when maximum acceleration is needed, e.g. when passing.
When the accelerator pedal is depressed all the way to the floor (past the normal full accel-erator position), the transmission will auto-matically engage kickdown, i.e. immediatelyshift down to a lower gear. If the accelerator pedal is released from the kickdown position, the transmission will auto-matically shift up again.
Safety function
The transmission control module is equipped with a downshift protection feature to helpprevent the engine from overheating. In some conditions, the transmission will pre- vent downshifting/kickdown if this would leadto such high engine speed (rpm) that theengine could be damaged. If the driver stillattempts downshifting or kickdown at a highrpm, nothing will happen and the original gearwill remain selected. With kickdown, the vehicle can downshift one or more steps at a time depending on theengine speed. The vehicle upshifts when theengine reaches its maximum rpm to preventengine damage.
Related information

Automatic transmission (p. 391)
7
The function is not available for vehicles with the small gear selector.

STARTING AND DRIVING
}}
* Option/accessory.399
All Wheel Drive (AWD) *
All-wheel drive (AWD 8
), also called four-
wheel drive, means that power is distributed to all four wheels, which improves traction.
To achieve the best traction, power is auto- matically directed to the wheels that have thebest grip. The system continuously calculatesthe need for torque to the rear wheels, andcan immediately redistribute up to half of theengine's torque to the rear wheels. All-wheel drive also has a stabilizing effect at higher speeds. In normal driving conditions,most of the engine's power is directed to thefront wheels. When the vehicle is stationary,all-wheel drive is always activated in prepara-tion for maximum traction during acceleration. All-wheel drive reacts differently depending on which drive mode is selected.
Related information
Drive modes
* (p. 399)
Transmission (p. 391)
Drive modes
*
Drive modes affect the vehicle's driving cha- racteristics in different ways to enhance andsimplify the driving experience in certaintypes of situations.
Drive modes enable easy access to the vehi- cle's many functions and settings in differentdriving situations. The following systems areadapted to help optimize driving characteris-tics in each drive mode: Steering
Engine/transmission/all-wheel drive
*
Brakes
Shock absorbers
Instrument panel
Start/Stop function
Climate control settings
Select the drive mode that is adapted to the current driving conditions. Keep in mind thatnot all drive modes are available in all situa-tions.
Available drive modesWhen the engine is started, the vehicle will be in Comfort mode and the start/stop function
will be activated. Drive mode can be changed once the vehicle is started, e.g. to
Individual
mode. Once Individual mode is selected, you
can adjust settings to personal preferences, e.g. to show the tachometer.
Comfort
Comfort is the vehicle's default mode. This
setting offers driving comfort, light steering and soft suspension. In
Comfort mode, no tachometer will be dis-
played in the instrument panel 9
.
Eco
Adapt the vehicle for more fuel-efficient and eco-friendly driving with Eco mode.
In this mode, the Start/Stop function is acti- vated and certain climate settings arereduced. When driving in
Eco mode, an ECO gauge
indicating how economical the driving is will be displayed in the instrument panel.
8 All Wheel Drive
9 Only applies to vehicles with 8-inch instrument panels.

||
STARTING AND DRIVING
* Option/accessory.
400
Dynamic
Dynamic mode is designed to help pro-
vide sportier driving characteristics and a faster acceleration response.
Gear shifting will be faster and more distinctand the transmission will prioritize gears witha higher traction force. Steering response is faster and suspension is stiffer 10
to help reduce body roll when corner-
ing. The Start/Stop function is deactivated.
Dynamic mode is also available in a Polestar
Engineered* version.
Individual
Customizes drive mode to personal prefer- ences.
Select one of the drive modes as a basis andadjust the settings to achieve your preferreddriving characteristics. These settings will bestored in the active driver profile and will beavailable every time the vehicle is unlockedwith that remote key. Individual drive mode is only available if it has been activated in the center display.
Settings view 11
for Individual drive mode.
1. Tap Settings in the Top view.
2. Tap
My CarIndividual Drive Modeand select Individual Drive Mode. 3.
Under
Presets, select one of the following
drive modes as a basis: Eco, Comfort,Dynamic or Polestar Engineered* .
The following settings can be modified:

Driver Display
Steering Force
Powertrain Characteristics
Brake Characteristics
Suspension Control
ECO Climate
Start/Stop.
Related information
Changing drive mode
* (p. 401)
Eco drive mode (p. 401)
Economical driving (p. 411)
Start/Stop function (p. 404)
All Wheel Drive (AWD)
* (p. 399)
Driver profiles (p. 133)
10
Vehicles with Four-C.
11 The illustration is generic - details may vary according to vehicle model.

STARTING AND DRIVING
}}
* 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.

||
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
407
The engine auto-starts while the brake pedal is depressed
In the following situations, the engine will auto-start even if the brake pedal isdepressed: High levels of condensation on the insideof the windows.
The climate system settings and theactual climate in the passenger compart-ment differ.
The brake pedal is pumped repeatedly.
The hood is open.
The vehicle begins to roll or increasesspeed slightly if the engine auto-stoppedbefore the vehicle was at a standstill.
The driver's seat belt is unbuckled with thegear selector in the
D or N positions.
The gear selector is moved from
D to R or
M (± ).
The driver's door is opened with the gearselector in
D. An audible signal and a text
message informs the driver that the igni-tion is on.
WARNING
Do not open the hood if the engine has auto-stopped. Turn off the engine byswitching off the ignition before lifting thehood.
Related information
Start/Stop function (p. 404)
Driving with the Start/Stop function (p. 404)
Deactivating the Start/Stop function(p. 406)