2020 VOLVO S90 TWIN ENGINE engine

SAFETY
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Airbags
The vehicle is equipped with airbags and inflatable curtains for the driver and passen-gers.
WARNING
If the airbag warning light stays on after the engine has started or if it illu-minates while you are driving, have thevehicle inspected by a trained andqualified Volvo service technician assoon as possible.
Never attempt to alter or repair any ofthe vehicle's safety systems yourself.Incorrectly performed repairs to anysystem could impair function and leadto serious injury. All work on these sys-tems should be performed by a trainedand qualified Volvo service technician.
WARNING
If your vehicle has become water-damaged in any way (e.g., soaked floor mats/stand-ing water on the floor of the vehicle), donot attempt to start the engine. This maycause airbag deployment, which couldresult in serious injury. Volvo recommendstowing the vehicle directly to an authorizedVolvo workshop. Before attempting to tow the vehicle:
1. Switch off the ignition for at least 10
minutes and disconnect the battery.
2. Follow the instructions for manually overriding the shiftlock system.
Deployed airbags
WARNING
If any of the airbags have deployed:
Do not attempt to drive the vehicle. Have it towed to an authorized work-shop.
If necessary, seek medical attention.
Related information

Safety (p. 42)
Driver/passenger-side airbags (p. 53)
Side airbags (p. 60)
Inflatable curtain (p. 61)
Driver/passenger-side airbags 2
As a supplement to the seat belts, the vehicle is equipped with driver and passenger sidefront airbags.
Driver/passenger side front airbags.
In a frontal collision, the airbags help protect the driver's and passenger's head, neck, faceand chest and the driver's knees and legs. A collision of a sufficiently violent force will trigger the sensors and one or more airbagswill inflate. The airbag helps cushion the initialimpact of the collision for the passenger. Theairbag deflates when compressed by the colli-sion. A small amount of powder will also bereleased from the airbag. This may appear tobe smoke and is normal. The entire process, from inflation to deflation of the airbag, occurs within tenths of a second.

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Safety mode Safety mode is a feature that is triggered after a collision if there is potential damage toan important function in the vehicle, such asthe fuel lines, sensors for one of the safetysystems, the brake system, etc.
If the vehicle has been involved in a collision, the text Safety mode See Owner's manualmay appear in the instrument panel along with the warning symbol if the panel is undamagedand the vehicle's electrical system is intact.The message indicates that one or more of thevehicle's functions may be reduced.
WARNING
Never attempt to restart the vehicle if you smell fuel fumes when the message Safety
mode See Owner's manual is displayed
in the instrument panel. Leave the vehicle immediately.
If safety mode has been set, it may be possi- ble to reset the system in order to start andmove the vehicle a short distance, for exam-ple, if it is blocking traffic.
WARNING
Never attempt to perform repairs or reset electrical components on your own afterthe vehicle has been in safety mode. Thiscould result in injury or prevent the vehiclefrom functioning properly. Volvo recom-mends having the vehicle inspected andreset to normal operating status by an authorized Volvo workshop after
Safety
mode See Owner's manual has been dis-
played.
WARNING
When the vehicle is in safety mode, it should not be towed behind another vehi-cle. It should be towed from the site on atow truck. Volvo recommends towing thevehicle directly to an authorized Volvoworkshop.
Related information
Safety (p. 42)
Starting and moving the vehicle when it is in safety mode (p. 62)
Recovery (p. 444)
Starting and moving the vehicle when it is in safety mode If safety mode has been set, it may be possi- ble to reset the system in order to start andmove the vehicle a short distance, for exam-ple, if it is blocking traffic.
Starting the vehicle when it is in safety mode
1. Check the vehicle for damage, particularly
for fuel leakage. Make sure you do not detect any gasoline fumes. If the damage to the vehicle is minor and there is no fuel leakage/fumes, you mayattempt to start the engine.
WARNING
Never attempt to restart the vehicle if you smell fuel fumes when the message Safety
mode See Owner's manual is displayed
in the instrument panel. Leave the vehicle immediately.
2. Switch off the ignition.

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3. Then try to start the vehicle.
> The vehicle's electrical system will per-form a system check and then attempt to reset to normal operating mode. The message
Vehicle start System check,
wait will be displayed on the instru-
ment panel during the check. This may take up to a minute.
4. When
Vehicle start System check, waitis no longer displayed in the instrument panel, try again to start the vehicle.
CAUTION
If the message Safety mode See
Owner's manual is still displayed, the
vehicle should not be driven or towed behind another vehicle. If the vehicle needsto be moved, it must be towed on a towtruck. Even if no damage is apparent, theremay be hidden damage that could makethe vehicle impossible to control.
Moving the vehicle when it is in safety mode
1. If the message Normal mode The
vehicle is now in normal mode is dis-
played after attempting to start the engine, the vehicle may be moved care-fully from its present position if, for exam-ple, it is blocking traffic.
2. Do not move the vehicle farther than abso- lutely necessary.
WARNING
When the vehicle is in safety mode, it should not be towed behind another vehi-cle. It should be towed from the site on atow truck. Volvo recommends towing thevehicle directly to an authorized Volvoworkshop.
Related information
Safety mode (p. 62)
Starting the vehicle (p. 398)
Recovery (p. 444)
Child safety Children should always be seated safely when traveling in the vehicle.
General informationVolvo recommends the proper use of restraint systems for all occupants including children.Remember that, regardless of age and size, achild should always be properly restrained in avehicle. Your vehicle is also equipped with ISOFIX/ LATCH attachments, which make it more con-venient to install child seats. Some restraint systems for children are designed to be secured in the vehicle by lapbelts or the lap portion of a lap-shoulder belt.Such child restraint systems can help protectchildren in vehicles in the event of an accidentonly if they are used properly. However, chil-dren could be endangered in a crash if thechild restraints are not properly secured in thevehicle. Failure to follow the installationinstructions for your child restraint can resultin your child striking the vehicle's interior in asudden stop. Holding a child in your arms is NOT a suitable substitute for a child restraint system. In anaccident, a child held in a person's arms canbe crushed between the vehicle's interior andan unrestrained person. The child could alsobe injured by striking the interior, or by being

DISPLAYS AND VOICE CONTROL
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Fuel gauge The fuel gauge in the instrument panel shows the fuel level in the tank.
The illustration is generic - details may vary accord- ing to vehicle model.
The beige area in the fuel gauge indicates the amount of fuel left in the tank. When the fuel level is low and it is time to refuel, the fuel pump symbol will illuminate with an amber-colored light. The trip computer also indicates the approximate distance drivenon the fuel remaining in the tank.
Related information
Instrument panel (p. 80)
Hybrid battery gauge (p. 84)
Refueling (p. 435)
Fuel tank volume (p. 633)
Hybrid gauge In Hybrid and Pure drive modes, the instru- ment panel will display a hybrid gauge, whichcan help the driver achieve optimal drivingeconomy.
The hybrid gauge shows the ratio between the electric motor's current power consumptionand the remaining available power. This infor-mation is shown in various ways.
Symbols in the hybrid gaugeIndicates the current available powerfrom the electric motor. A solid sym-bol indicates that the electric motoris being used.
A hollow symbol indicates that the electric motor is not being used.
Indicates the power level when the internal combustion engine starts. Asolid symbol indicates that the inter-nal combustion engine is being used.
Indicates the power level when the internal combustion engine will start.A hollow symbol indicates that theinternal combustion engine is not
being used.
Indicates that the hybrid battery is being charged, e.g. by lightly press-ing the brake pedal.
Driver-requested powerThe hybrid gauge displays the amount of power requested (utilized) by the driverthrough pressure on the accelerator pedal. Thehigher the reading on the scale, the morepower utilized in the current gear. The markbetween the lightning symbol and the dropsymbol indicates the point at which the com-bustion engine will start.

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For example:
The vehicle has been started, but is stationary and no power is being requested.
The electric motor cannot supply the requested power and the internal combustion engine will start.
The vehicle is generating current to recharge the bat- tery, e.g. during light braking or engine braking on adownslope.
Related information
Drive modes (p. 419)
Instrument panel (p. 80)
Brakes (p. 403)
Starting and stopping the combustion engine in Twin Engine vehicles (p. 419)
Hybrid battery gauge
The hybrid battery gauge shows how much current is left in the hybrid battery.
The current in the hybrid battery is used to power the electric motor, but can also be usedto heat or cool the vehicle. The trip computercalculates an approximate driving distancewith the remaining current in the hybrid bat-tery.

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Symbol Meaning
Tire pressure system This symbol illuminates to indi- cate low tire pressure. If there isa fault in the tire pressure sys-tem, the symbol will first flash forapproximately 1 minute and thenglow steadily. This may occur ifthe system cannot detect or alertthe driver of low tire pressure asintended.
Emission control system If this symbol illuminates after starting the engine, it could indi-cate a fault in the vehicle's emis-sion control system. Have thevehicle checked by a workshop.Volvo recommends contactingan authorized Volvo workshop.
Left/right turn signals The symbol will flash when the turn signals are in use.
Symbol Meaning
Parking lights This symbol illuminates when the parking lights are on.
Fault in headlight system This symbol illuminates if a fault has been detected in the ABL(Active Bending Lights) functionor another fault in the headlightsystem.
Active high beams on This symbol lights up in blue when the active high beams areon.
Active high beams off This symbol lights up in white when the active high beams areoff.
High beams on This symbol illuminates when the high beams are on or flashed.
Active high beams on This symbol lights up in blue when the active high beams areon. Parking lights are on.
Symbol Meaning
Active high beams off This symbol lights up in white when the active high beams areoff. Parking lights are on.
High beams on This symbol illuminates when the high beams and parking lightsare on.
Front fog lights on This symbol illuminates when the front fog lights are on.
Rear fog light on This symbol illuminates when the rear fog light is on.
Rain sensor on This symbol illuminates when the rain sensor is on.
Preconditioning on This symbol illuminates when the engine block/passenger com-partment heater or air condition-ing are preconditioning the vehi-cle.

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Warning symbols in the instrument panelThe warning symbols alert the driver that an important function is activated or that a seri-ous fault or error has occurred.
Symbol Meaning
WARNING The red warning symbol illumi- nates to indicate that a fault hasbeen detected that could affectsafety or driveability. An explana-tory message will be simultane-ously displayed in the instrumentpanel. The warning symbol mayalso illuminate in combinationwith other symbols.
Seat belt reminder This symbol will glow steadily or flash if the driver or front seatpassenger has not fastened theirseat belt or if anyone in the rearseat has removed their seat belt.
Symbol Meaning
Airbags If this symbol remains illumi- nated or comes on while driving,a fault has been detected in oneof the vehicle's safety systems.Read the message in the instru-ment panel. Volvo recommendscontacting an authorized Volvoworkshop.
A
B Fault in brake system If this symbol illuminates, the brake fluid level may be too low.Contact your nearest authorizedworkshop to have the brake fluidlevel checked and adjusted.
Symbol Meaning
A
B
Parking brake on This symbol glows steadily when the parking brake is applied. A flashing symbol indicates that a fault has occurred. Read themessage in the instrument panel.
Low oil pressure If this symbol illuminates while driving when the engine oil pres-sure is too low. Stop the engineimmediately and check theengine oil level. Add oil if neces-sary. If the symbol illuminatesand the oil level is normal, con-tact a workshop. Volvo recom-mends contacting an authorizedVolvo workshop.
Generator not charging This symbol illuminates during driving if a fault is detected in theelectrical system. Contact aworkshop. Volvo recommendscontacting an authorized Volvoworkshop.

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Symbol Meaning
Collision risk City Safety warns the driver if there is a risk of a collision withanother vehicle, pedestrian,cyclist or large animal.
System error This symbol illuminates during driving if a fault is detected in thedrive system. An explanatorymessage will be simultaneouslydisplayed in the instrumentpanel.
High engine temperature The symbol will illuminate while driving when the engine tem-perature is too high. An explana-tory message will be simultane-ously displayed in the instrumentpanel.
ACanadian models.
B US models.
Related information
Indicator symbols in the instrument panel (p. 91)
Instrument panel (p. 80)
Instrument panel licenses
A license is an agreement on the right to con- duct a certain activity or the right to usesomeone else's right according to terms andconditions specified in the agreement. Thefollowing text is Volvo's agreement with themanufacturer or developer.
Boost Software License 1.0
Permission is hereby granted, free of charge, to any person or organization obtaining a copyof the software and accompanyingdocumentation covered by this license (the"Software") to use, reproduce, display,distribute, execute, and transmit the Software,and to prepare derivative works of theSoftware, and to permit third-parties to whomthe Software is furnished to do so, all subjectto the following: The copyright notices in theSoftware and this entire statement, includingthe above license grant, this restriction andthe following disclaimer, must be included inall copies of the Software, in whole or in part,and all derivative works of the Software,unless such copies or derivative works aresolely in the form of machine-executableobject code generated by a source languageprocessor. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,EXPRESS OR IMPLIED, INCLUDING BUTNOT LIMITED TO THE WARRANTIES OFMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT SHALL THECOPYRIGHT HOLDERS OR ANYONEDISTRIBUTING THE SOFTWARE BE LIABLEFOR ANY DAMAGES OR OTHER LIABILITY,WHETHER IN CONTRACT, TORT OROTHERWISE, ARISING FROM, OUT OF ORIN CONNECTION WITH THE SOFTWARE ORTHE USE OR OTHER DEALINGS IN THESOFTWARE.