2020 VOLVO S90 TWIN ENGINE engine

HYBRID INFORMATION
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381

Factors affecting electric motor range (p. 429)
Automatic transmission (p. 412)
Towing using a towline (p. 443)
Charging the hybrid battery
In addition to the conventional fuel tank, your vehicle is also equipped with a rechargeablelithium-ion hybrid battery.
WARNING
California Proposition 65 Operating, servicing and maintaining a pas- senger vehicle can expose you to chemi-cals including engine exhaust, carbon mon-oxide, phthalates, and lead, which areknown to the State of California to causecancer and birth defects or other reproduc-tive harm. To minimize exposure, avoidbreathing exhaust, do not idle the engineexcept as necessary, service your vehicle ina well ventilated area and wear gloves orwash your hands frequently when servicingyour vehicle. For more information go towww.P65Warnings.ca.gov/passenger-vehicle.
The hybrid battery can be recharged using the charging cable stored in a storage space in thetrunk.
WARNING
The hybrid electrical system in your vehicle uses high voltage electrical current. Anydamage to this system or to the hybrid bat-tery may result in the danger of overheat-ing, fire, or serious injury. If the vehicle isinvolved in a collision or subjected to flood-ing, fire, etc., have it inspected by a trainedand qualified Volvo service technician. Priorto this inspection, the vehicle should beparked outdoors at a safe distance fromany building or potentially flammable mate-rials.
The hybrid battery's charging time depends on the charging current used.
NOTE
The capacity of the hybrid battery dimin- ishes somewhat with age and use, whichcould result in increased use of the gaso-line engine and consequently, slightlyhigher fuel consumption.
WARNING
If the hybrid battery needs to be replaced, this may only be done by a Volvo retailer orauthorized Volvo workshop.

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HYBRID INFORMATION
382
Charging cable handle and charging socket.
Charging status is indicated in three ways:
The indicator lights in the charging module (the unit connected to the wall outlet).
Indicator light in the vehicle's chargingsocket.
Images and text in the instrument panel.
The start battery is charged while the hybridbattery is charging and stops charging whenthe hybrid battery is fully charged. If the hybrid battery's temperature is below -10 ºC (14 ºF) or above 40 ºC (104 ºF), some
of the vehicle's functions may be reduced ornot available at all. The electric motor cannot be used if the bat- tery's temperature is too low or too high. If thePURE drive mode is selected, the gasolineengine will start.
Charging using the gasoline engine
The vehicle generates electrical current to charge the battery, e.g. when the driver lightly presses the brakepedal or when engine braking is used on down-grades.
The vehicle can also generate current to the hybrid battery to charge it. The hybrid battery can also be recharged by lightly depressing the brake pedal, i.e.during light braking. This converts thevehicle's kinetic energy to electricalenergy, which is used to charge the hybridbattery.
In gear position
B, the electric motor
brakes the vehicle when the acceleratorpedal is released and the hybrid battery isrecharged at the same time.
The combustion engine can also helprecharge the hybrid battery.
Related information
Charge cable (p. 383)
Charging current (p. 383)
Opening and closing the charging socketcover (p. 386)
Initiating hybrid battery charging (p. 386)
Stopping hybrid battery charging (p. 392)
Charging status in the charging cable'scharging module (p. 389)
Charging status in the vehicle's chargingsocket (p. 388)
Charging status in the instrument panel(p. 390)
Twin Engine symbols and messages in theinstrument panel (p. 394)
Automatic transmission (p. 412)
Changing drive mode (p. 423)
Long-term storage of vehicles with hybridbatteries (p. 396)

HYBRID INFORMATION
391
NOTE
If the instrument panel is not used, it will go dark after a period of time. To reactivatethe display: depress the brake pedal,
open one of the doors, or
put the ignition in mode
I by turning
the START knob clockwise and then
releasing.
Related information
Charging the hybrid battery (p. 381)
Twin Engine symbols and messages in the instrument panel (p. 394)
Charging status in the vehicle's chargingsocket (p. 388)
Charging status in the charging cable'scharging module (p. 389)
Stopping hybrid battery charging (p. 392)

HYBRID INFORMATION
394
Twin Engine symbols and messages in the instrument panelA number of symbols and messages relating to the Twin Engine may be displayed in the instrument panel. They may also appear incombination with general indicator and warn-ing symbols and disappear when the neces-sary action has been taken.
Symbol Message Meaning
12 V Battery Charging fault, service urgent. Drive to workshopBattery fault. Contact a workshop
A
to have the battery checked as soon as possible.
12 V Battery Charging fault Stop safelyBattery fault. Stop the vehicle as soon as possible and contact a workshop A
to have the bat-
tery checked.
12 V Battery Fuse failure Service requiredBattery fault. Contact a workshop A
to have the system checked as soon as possible.
HV battery Overheated, stop safelyThe hybrid battery's temperature seems to be rising at an abnormal rate. Stop the vehicle and turn off the engine. Wait at least 5 minutes before driving. Call a workshop A
or inspect the
vehicle to make sure everything seems normal before continuing to drive.
Reduced performance Max vehicle speed limitedThe hybrid battery's charge level is too low for driving at high speeds. Charge the battery as soon as possible.
Propulsion system Harsh behavior at low speed, vehicle ok to useThe hybrid system is not functioning properly. Contact a workshop A
to have the system
checked as soon as possible.

STARTING AND DRIVING
* Option/accessory.
398
Starting the vehicle
The vehicle can be started using the start knob in the tunnel console when the remotekey is in the passenger compartment.
Start knob in the tunnel console.
WARNING
Before starting:
Buckle your seat belt.
Adjust the seat, steering wheel and mirrors.
Make sure you can fully depress thebrake pedal.
The remote key is not physically used to startthe ignition because the vehicle is equippedwith the keyless Passive Start system. To start the vehicle:
CAUTION
The vehicle cannot be started if the charg- ing cable is still plugged in. Make sure topull out the charging cable from the charg-ing socket before starting the vehicle.
1. The remote key must be inside the vehicle.
For vehicles with Passive Start, the key must be in the front section of the passen-ger compartment. With the optional key- less locking/unlocking function *, the key
can be anywhere in the vehicle.
2. Press and hold down the brake pedal 1
as
far as possible.
3. Turn the start knob clockwise and release. The control will automatically return to the original position.
WARNING
Never use more than one inlay mat at a time on the driver's floor. If any othertype of floor mat is used, remove theoriginal mat from the driver's seat floorbefore driving. All types of mats mustbe securely anchored in the attach-ment points in the floor. Make sure thefloor mat does not impede the move-ment of the brake pedal or acceleratorpedal in any way, as this could be aserious safety hazard.
Volvo's floor mats are specially manu-factured for your vehicle. They must beproperly secured in the attachmentpoints in the floor to help ensure theycannot slide and become trappedunder the pedals.
The starter motor will crank until the enginestarts or until overheating protection is trig-gered. During normal start conditions, the vehicle's electric motor will be prioritized and the gaso-line engine will remain off. This means thatonce the start knob is turned clockwise, theelectric motor has been "started" and the vehi-cle is ready to be driven. The warning andinformation symbols in the instrument panel
1 If the vehicle is moving, it is only necessary to turn the start knob clockwise to start the engine.

STARTING AND DRIVING
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399
will go out and the selected theme will be dis- played to indicate that the electric motor isactivated. In some situations, such as in cold weather or if the hybrid battery's charge level is too low,the gasoline engine will start instead.
Error messagesIf the Vehicle key not found message is
shown in the instrument panel at start, place the remote key at the backup reader and thenmake a new start attempt.
Location of the backup reader in the tunnel console.
NOTE
When the remote key is placed in the backup reader, make sure that no othervehicle keys, metal objects or electronicdevices (e.g. cellular phones, tablets, lap-tops or chargers) are in the backup reader.Multiple vehicle keys close to each other inthe backup reader can disrupt their func-tionality.
If Vehicle start System check, wait is dis-
played in the instrument panel while attempt- ing to start the vehicle, wait until the messagedisappears and try again to start the vehicle.
CAUTION
If the engine has not responded after 3 attempts – wait for 3 minutes before star-ting a new attempt. Starting capabilityincreases if the starter battery is given timeto recover.
NOTE
The vehicle cannot be started if the hybrid battery is discharged.
WARNING
Never remove the remote control key from
the vehicle while driving.
WARNING
Always remove the remote key from the passenger compartment when youleave the vehicle and make sure theignition is in mode
0.
Always put the gear selector in
P and
apply the parking brake before leavingthe vehicle. Never leave the vehicleunsupervised while the engine is run-ning.
Always open the garage door fully andmake sure that ventilation is very goodbefore starting the engine in a garage.The exhaust fumes produced by thevehicle contain carbon monoxide,which is invisible and odorless but verytoxic.

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STARTING AND DRIVING
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CAUTION
When starting in cold weather, the automatic transmission may shift up atslightly higher engine speeds than nor-mal until the automatic transmissionfluid reaches normal operating tem-perature.
Do not race a cold engine immediatelyafter starting. This could prevent fluidsfrom properly lubricating vital compo-nents in the engine before it hasreached the proper operating tempera-ture.
The engine should be idling when thegear selector is moved. Never acceler-ate until the gear is fully engaged.Accelerating rapidly before a gear isproperly engaged could lead to harderwear of components.
To help prevent the transmission oilfrom overheating, select
P or N when
idling at a standstill for prolonged peri-ods of time.
NOTE
With a cold start, idling speed may be con- siderably higher than normal for certainengine types. This is done to get the emis-sions system up to normal operating tem-perature as quickly as possible, which min-imizes exhaust emissions and protects theenvironment.
Related information
Switching off the vehicle (p. 400)
Ignition modes (p. 401)
Adjusting the steering wheel (p. 195)
Jump starting using another battery (p. 441)
Selecting ignition mode (p. 402)
Switching off the vehicle
The vehicle can be switched off using the start knob in the tunnel console.
Start knob in the tunnel console.
To switch off the vehicle:
–Turn the start knob clockwise and release to switch off the vehicle. The control willautomatically return to the original posi-tion.
If the vehicle rolls:
–Turn clockwise and hold the knob until the vehicle switches off.
Related information
Starting the vehicle (p. 398)
Ignition modes (p. 401)
Adjusting the steering wheel (p. 195)

STARTING AND DRIVING
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* Option/accessory.401

Jump starting using another battery (p. 441)
Selecting ignition mode (p. 402)
Ignition modes The vehicle's ignition can be put in various modes (levels) to make different functionsavailable.
To enable the use of a limited number of func- tions when the engine is not running, the igni-tion can be put in one of three different levels:0
, I and II. These levels are referred to as "igni-
tion modes" in the Owner's Manual. The following table shows which functions are available in each ignition mode:
Mode Functions
0 The odometer, clock and tem- perature gauge are illumi- nated A
.
The power
* seats can be
adjusted.
The power windows can be used.
The center display is activated and can be used A
.
The infotainment system canbe used A
.
In this mode, the functions are available for a limited time andthen switch off automatically.
I The panoramic roof, powerwindows, 12-volt electricalsocket in the passenger com-partment, Bluetooth, naviga-tion, phone, blower and wind-shield wipers can be used.
The power seats can beadjusted.
The 12-volt electrical socket
* in
the trunk can be used.
Electrical current will be takenfrom the battery in this ignitionmode.