automatic transmission VOLVO S90 TWIN ENGINE 2019 User Guide

STARTING AND DRIVING
444
The kickdown function
Kickdown is used when maximum acceleration isneeded, e.g. when passing.
When the accelerator pedal is depressed all theway to the floor (past the normal full acceleratorposition), the transmission will automaticallyengage kickdown, i.e. immediately shift down to alower gear.
If the accelerator pedal is released from the kick-down position, the transmission will automaticallyshift up again.

Safety function
The transmission control module is equipped witha downshift protection feature to help prevent theengine from overheating.
In some conditions, the transmission will preventdownshifting/kickdown if this would lead to suchhigh engine speed (rpm) that the engine couldbe damaged. If the driver still attempts downshift-ing or kickdown at a high rpm, nothing will hap-pen and the original gear will remain selected.
With kickdown, the vehicle can downshift one ormore steps at a time depending on the enginespeed. The vehicle upshifts when the engine rea-ches its maximum rpm to prevent engine dam-age.

Related information
Gear selector positions for automatic trans-missions (p. 440)
All Wheel Drive (AWD)
All-wheel drive, All Wheel Drive (AWD), alsocalled four-wheel drive, means that power is dis-tributed to all four wheels, which improves trac-tion.
The electric motor that powers the rear wheelsenables electronic all-wheel drive functionality.All-wheel drive reacts differently depending onwhich drive mode is selected.
Related information
Drive modes (p. 446)
Transmission (p. 440)
Drive systems
Volvo Twin Engine combines a combustionengine for the front wheels and an electric motorfor the rear wheels.
Two drive systems
Depending on the selected drive mode andpower available in the electric motor, the drivesystems can either be used separately or in tan-dem.
The electric motor gets its energy from a hybridbattery located under the tunnel console. Thehybrid can be charged from a wall outlet or in aspecial charging station. The combustion enginecan also charge the hybrid battery using a specialhigh-voltage generator.
Both the combustion engine and the electricmotor can generate power directly to the wheels.An advanced control system coordinates both thedrive systems to help optimize driving economy.

STARTING AND DRIVING
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445
Hybrid battery - The hybrid battery's functionis to store electrical current. This energy isprovided by plugging the charging cable intoan electrical outlet, through regenerativebraking or from the high-voltage generator.This provides current to power the electricmotor and to temporarily power the electricalair conditioning to precondition the passen-ger compartment.
Combustion engine - The combustion enginestarts when the charge level in the hybridbattery is too low to provide the power outputrequested by the driver.
High-voltage generator2 - Charges the hybridbattery. Starter for the combustion engine.
Can provide the combustion engine withextra electrical current.
Electric motor - Powers the vehicle usingelectricity. Can provide extra torque andpower during acceleration. Provides electricalall-wheel drive functionality. Regeneratesbraking energy into electrical current.

Related information
General information about Twin Engine(p. 408)
Starting and stopping the combustion enginein Twin Engine vehicles (p. 445)
Drive modes (p. 446)
Transmission (p. 440)
Factors affecting electric motor range(p. 455)
Starting and stopping thecombustion engine in Twin Enginevehicles
An advanced control system determines the dis-tance that the vehicle can be driven on the com-bustion engine, electric motor, or both at thesame time. When driving on only the electricmotor, the vehicle may automatically start thecombustion engine due to outside circumstan-ces, e.g. low ambient temperatures. This is com-pletely normal. The combustion engine will alsoalways start when the hybrid battery is nearlyfully discharged.

Climate settings at low temperatures
At low ambient temperatures, the combustionengine will sometimes start automatically to helpachieve the desired passenger compartmenttemperature and air quality. The amount of timethe combustion engine is running can be affec-ted by:
lowering the temperature
reducing blower speed
activating Pure drive mode.

Using the electric motor in hot or cold
weather
At very low or high ambient temperatures, theelectric motor's driving range and power may be
2CISG (Crank Integrated Starter Generator) - Combined high-voltage generator and starter.

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STARTING AND DRIVING
446
reduced and affect how often the combustionengine automatically starts.

Emission control system
To help ensure that the emission control systemfunctions optimally, the combustion engine willrun for several minutes after it is started. Theamount of time the combustion engine needs tobe used varies depending on the temperature ofthe three-way catalytic converter.

WARNING
California Proposition 65
Operating, servicing and maintaining a pas-senger vehicle can expose you to chemicalsincluding engine exhaust, carbon monoxide,phthalates, and lead, which are known to theState of California to cause cancer and birthdefects or other reproductive harm. To mini-mize exposure, avoid breathing exhaust, donot idle the engine except as necessary, serv-ice your vehicle in a well ventilated area andwear gloves or wash your hands frequentlywhen servicing your vehicle. For more infor-mation go to www.P65Warnings.ca.gov/passenger-vehicle.

Related information
Drive systems (p. 444)
Economical driving (p. 453)
Using the electric motor only (p. 454)
Drive modes (p. 446)
Drive modes
Drive modes affect the vehicle's driving charac-teristics in different ways to enhance and sim-plify the driving experience in certain types of sit-uations.
Drive modes enable easy access to the vehicle'smany functions and settings in different drivingsituations. The following systems are adapted tohelp optimize driving characteristics in each drivemode:
Steering
Engine/transmission/all-wheel drive
Brakes
Shock absorbers
Instrument panel
Climate control settings
Select the drive mode that is best suited to thecurrent driving conditions. Keep in mind that notall drive modes are available in all situations.
Available drive modes
WARNING
Keep in mind that the vehicle does not emitany engine noise when using the electricmotor and may therefore be difficult to detectfor children, pedestrians, cyclists or animals.This is particularly true at low speeds, e.g. inparking lots.

WARNING
Do not leave the vehicle in an unventilatedarea with a drive mode activated and the com-bustion engine switched off. The engine willstart automatically if the charge level in thehybrid battery is low and the resulting exhaustgases can be very harmful to people and ani-mals.

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STARTING AND DRIVING
448

ECO Climate
In Pure mode, ECO climate is automatically acti-vated in the passenger compartment to helpreduce energy consumption.

NOTE
When the Pure drive mode is activated, set-tings for certain climate system and electricityconsuming functions are reduced. Some ofthese settings can be reset manually, but fullfunctionality will only be restored by leavingPure mode or adapting the Individual drivemode to full climate system functionality.
If condensation forms on the windows, tap themax defroster button, which will function normally.

AWD
Improves the vehicle's traction and handlingby increasing all-wheel drive.
This drive mode locks the vehicle in all-wheeldrive. An optimal distribution between front andrear axle torque helps provide the best possiblecontrol, stability and traction, e.g. on slipperyroads or when towing a heavy trailer or anothervehicle. The AWD drive mode is always availableregardless of the hybrid battery's charge status.
Both the combustion engine and the electricmotor are engaged to enable all-wheel drive,which results in higher fuel consumption.
In the other drive modes, the vehicle automati-cally adapts the need for all-wheel drive accord-ing to the road surface, and can activate the elec-tric motor or start the combustion engine as nee-ded.
POWER
Power mode is designed to provide sportierdriving characteristics and a faster accelera-tion response.
This drive mode maximizes the combined powerfrom the combustion engine and the electricmotor by providing power to both the front andrear wheels. Gear shifting will be faster and moredistinct and the transmission will prioritize gearswith a higher traction force. Steering response isfaster and suspension is stiffer.
Both the combustion engine and the electricmotor are engaged to enable all-wheel drive,which results in higher fuel consumption.
This drive mode is optimized for maximum per-formance and throttle response. It changes thethrottle response, gear shifting program andturbo boost system. Chassis settings and steer-ing and brake response are also optimized. ThePower drive mode is always available regardlessof the hybrid battery's charge status.

INDIVIDUAL
Customizes drive mode to personal preferen-ces.
Select one of the drive modes as a basis andadjust the settings to achieve your preferred driv-ing characteristics. These settings will be storedin your driver profile.
Individual drive mode is only available if it hasbeen activated in the center display.
Settings view3 for Individual drive mode.
1.Tap Settings in the Top view.
3The image is schematic and the details may vary depending on vehicle model or software update.

MAINTENANCE AND SERVICE
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* Option/accessory.609
Fuse pliers are provided on the inside of the fusebox cover to assist in removing and insertingfuses.
There are also spaces for several extra fuses inthe fusebox.

Positions
There is a decal with a diagram of the locationsof the fuses on the inside of the cover.
Fuses 1–13, 18–30, 35–37 and 46–70 are"Micro" fuses.
Fuses 14–17, 31–34, 38–45 and 71–78 are"MCase" fuses and should only be replaced
by a workshop16.
FunctionAmpere
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Control module for actuatorfor engaging/changing gears,automatic transmission
5
High-voltage coolant heatercontrol module5
FunctionAmpere
Control module for A/C; heatexchanger cut-off valve; cut-off valve for coolant throughthe climate system
5
Hybrid battery control module;high-voltage converter forcombined high-voltage gener-ator/starter motor with 500V–12 V voltage converter
5
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Converter for controlling feedto rear axle electric motor10
Hybrid battery control module;high-voltage converter forcombined high-voltage gener-ator/starter motor with 500V–12 V voltage converter
10
Charge module5
Cut-off valve for hybrid batterycoolant; coolant pump 1 forhybrid battery
10
Coolant pump for electric drivesystem10
FunctionAmpere
Hybrid component cooling fan 25
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Front USB port in tunnel con-sole, front*5
12 V outlet in tunnel console,front15
12 V outlet in tunnel console
between second-row seatsA
12 V outlet in tunnel console,
between rear seatsB; USBports in tunnel console
between rear seatsB
15
16An authorized Volvo workshop is recommended.

SPECIFICATIONS
647
Coolant specifications
Recommended grade: Volvo-approved pre-mixed coolant. If concentrated coolant is used,mix with 50% water. Consult a Volvo retailer ifyou have any questions.
To avoid deterioration of the cooling system,engine trouble, etc., only approved Volvo coolantshould be used.

WARNING
Do not ingest. May cause damage to organs(kidneys). The product contains ethylene gly-col, inhibitor, emetic, water, etc.

Related information
Refilling coolant (p. 599)
Transmission fluid specifications
Under normal driving conditions, the transmis-sion fluid will not need to be changed during itsservice life. However, it may need to be changedif the vehicle is driven frequently in adverse driv-ing conditions.
Automatic transmission
Prescribed transmission fluid:AW1

Related information
Type designations (p. 638)
Brake fluid specifications
The medium in the hydraulic brake system iscalled brake fluid and is used to transfer brakingforce from e.g. pressure on the brake pedal via amaster brake cylinder to one or more slave cylin-ders, which in turn act on a mechanical brake.
Recommended grade: Volvo Original or similarfluid that meets a combination of Dot 4, 5.1 andISO 4925 class 6.

NOTE
Changing or filling brake fluid should beentrusted to an authorized Volvo workshop.

Related information
Engine compartment overview (p. 596)

INDEX
651
1, 2, 3 ...
4WD444
A
ABS
anti-lock brakes431
AC (Air conditioning)223
ACC - Adaptive Cruise Control 292, 295,
296, 297, 298, 299, 301, 302, 303, 304,
305, 306
Accessories and extra equipment 35
installation36
Accessory installation warning 36, 37
Active Bending Lights155
Adapting driving characteristics 270, 446
Adaptive Cruise Control 292, 295, 296,
297, 298, 299, 301, 302, 303, 304, 305, 306
change cruise control functionality 305
function292
manage speed296, 297
pass301, 302
radar sensor324
set time interval298, 299
troubleshooting304
Adjusting the steering wheel193
Airbag52
activation/deactivation56
driver's side53
passenger side53, 56
Air bag, see Airbag52
Air conditioning223
Air conditioning, fluid
volume and grade648
Air distribution201
air vents201, 202
changing202
defrosting215
recirculation214
table showing options204
Air quality198, 200
allergy and asthma199
passenger compartment filter201
Air recirculation214
Alarm266
deactivating267
Allergy and asthma-inducing substances 199
All Wheel Drive, AWD444
All Wheel Drive (AWD)444
All Wheel Drive (four-wheel drive) 444
Android Auto512, 514
Antenna
location255
Apple CarPlay509, 511
Approach lighting157
Apps480
Assistance at risk of collision372, 373,
374, 375, 376, 377, 378, 379, 381
Audio and media478
Audio system
HD digital radio490
SiriusXM® Satellite radio 490, 491, 493
Auto-climate214
Auto hold437
Auto-hold brakes437
activate and deactivate438
after collision439
Automatic car wash627
Automatic high beam153
Automatic locking260
Automatic relocking240, 253
Automatic Speed Limiter 279, 281, 282, 283
Automatic transmission440
kickdown444
oil647
Auxiliary heater232
INDEX

INDEX
655
Engine
automatic start and stop of combustion
engine 445
overheating 465
start 426
turn off 428
Engine braking 431, 440
Engine compartment
coolant 599
engine oil 597
overview 596
Engine drag control 271
Engine oil 597
filling 598
filter 597
grade and volume 646
Engine shutdown 428
Engine specifications 645
Engine temperature
high 465
Environment 27
Error messages
Adaptive Cruise Control 306
see Messages and symbols 306, 322
Error messages in BLIS 351
Ethanol content
max. 10% by volume 461
Exterior dimensions641
Extra heater (Auxiliary heater)232
F
Federal Clean Air Act584
Ferry transport451
Flat tire564
Flooded road 458
Fluids, volumes 635, 648
Fluids and oils 647, 648
Fog lights
rear 155
Four-C 451
Front seat
blower 219
climate 207
heating 209, 210
temperature 221
ventilation 211
Front seat manual 180
Front seats, power 181
adjusting passenger seat from driver's
seat 188
adjusting seat 181
Lumbar support 187
massage184, 185
multifunction control 184, 185, 186, 187
Side bolsters186
store position 182, 183
Fuel 461
Travel Link service 498
Fuel filling 460
Fuel gauge 83
Fuel requirements 461, 462
Fuel tank
volume 648
Fuse box 607
Fuses
below the glove compartment 612
general 606
in engine compartment 608
in trunk 615
replacing 607
G
Gasoline grade461
Gauge
fuel gauge83
Gear selector positions
automatic transmission440

INDEX
663
Top view 128
Total airing function 237
Towing 468
Towing capacity and towball load 644
Towing eyelet 469
TPMS - Tire Pressure Monitoring System 551
Traction control 271
Traffic information 486
Transmission 440
automatic 440
Transmission fluid
grade 647
Travel Link 494
Fuel 498
Notifications 497
Sports 499
weather 496
Tread depth 545, 563
Tread wear indicator 545
Trip computer 85, 87
Trip odometer 85
Trip odometer resetting 88
Trip statistics 88
Troubleshooting
Adaptive Cruise Control 304
Troubleshooting the camera sensor 330, 333
Trunk
electrical outlet 575, 576
Lighting159
Trunk lid
emergency opening258
locking/unlocking241, 255
open/close with foot movement263
power-operated260
unlocking from inside257
Tunnel detection151
Turn off engine428
Turn signals154
Twin Engine
general408
Type approval
radar system328
U
Uniform Tire Quality Grading548
Units128
Unlocking
settings241
with key blade249
USB
socket for connecting media 507
V
Vehicle care 624, 625, 627, 628, 629, 630
leather upholstery622
Vehicle Event Data33
Vehicle functions
in the center display118
Vehicle key bat. low243
Vehicle modem
connecting vehicle to Internet526
settings527
Vehicle recovery470
Vehicle status588
inflation pressure554
Vehicle upholstery 619, 621, 622, 623, 624
Vehicle weight643
Ventilation201, 202
Seats211, 212
Video504, 506
settings505
Voice control141
climate197
phone143
radio and media144
settings144
VOL mark542