2019 VOLVO S90 TWIN ENGINE towing

HYBRID INFORMATION
408
General information about TwinEngine
Twin Engine vehicles are driven just like anyother vehicle, but certain functions differ from avehicle powered exclusively by gasoline. Theelectric motor powers the vehicle primarily at lowspeeds; the gasoline engine is used at higherspeeds or during more active driving.
The instrument panel displays Twin Engine-spe-cific information - charging information, selecteddrive mode, distance to discharged battery andhybrid battery charge level.
Different drive modes can be selected while driv-ing, e.g. electric power only or, if more power isneeded, a combination of electric and gasolinepower. The vehicle calculates the optimal combi-nation of driveability, driving experience, environ-mental impact and fuel economy for the selecteddrive mode.
In order to function optimally, the hybrid battery(and its electrical drive systems) and the gasolineengine (and its drive systems) must be at thecorrect operating temperature. Battery capacitycan be considerably reduced if the battery is toocold or too hot. Preconditioning prepares thevehicle's drive systems and passenger compart-ment before driving to help reduce both wear andenergy consumption. It also helps increase thehybrid battery's range.
The hybrid battery which powers the electricmotor is recharged using the charging cable. It
can also be recharged during light braking andthrough engine braking in gear position B. Thecombustion engine can also help recharge thehybrid battery.

Important
No electrical current
Keep in mind that if there is no electrical currentto the vehicle, i.e. the ignition is switched off orthe start battery is discharged, certain functionssuch as brakes, power steering, etc. will not work.

WARNING
If the vehicle does not have electrical currentand both the electric motor and the gasolineengine are switched off, the brakes cannot beused to stop the vehicle.

Towing not permitted
Never tow a Twin Engine vehicle behind anothervehicle, as this could damage the electric motor.

Exterior engine noise
WARNING
Please be aware that there is no sound fromthe engine when the vehicle is being poweredby the electric motor and it may be difficult todetect by children, pedestrians, cyclists andanimals. This is especially true at low speeds.
High-voltage electrical current
WARNING
A number of electrical components in TwinEngine Plug-in Hybrid vehicles use high-volt-age current and can be extremely dangerousif handled incorrectly. These components andany orange wiring in the vehicle may only behandled by trained and qualified Volvo servicetechnicians.
Do not touch anything that is not clearly descri-bed in this Owner's Manual.

Related information
Charging the hybrid battery (p. 409)
Hybrid gauge (p. 83)
Drive modes (p. 446)
Starting and stopping preconditioning(p. 225)
Hybrid battery (p. 605)
Factors affecting electric motor range(p. 455)

HYBRID INFORMATION
}}
409
Gear selector positions for automatic trans-missions (p. 440)
Towing using a towline (p. 468)
Charging the hybrid battery
In addition to the conventional fuel tank, yourvehicle 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 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.
The hybrid battery can be recharged using thecharging cable stored in a storage space in thetrunk.
WARNING
The hybrid electrical system in your vehicleuses high voltage electrical current. Any dam-age to this system or to the hybrid batterymay result in the danger of overheating, fire,or serious injury. If the vehicle is involved in acollision or subjected to flooding, fire, etc.,have it inspected by a trained and qualifiedVolvo service technician. Prior to this inspec-tion, the vehicle should be parked outdoors ata safe distance from any building or poten-tially flammable materials.
The hybrid battery's charging time depends onthe charging current used.

NOTE
The capacity of the hybrid battery diminishessomewhat with age and use, which couldresult in increased use of the gasoline engineand consequently, slightly higher fuel con-sumption.

WARNING
If the hybrid battery needs to be replaced, thismay only be done by a Volvo retailer orauthorized Volvo workshop.

||
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.

||
STARTING AND DRIVING
464

WARNING
Carbon monoxide is a poisonous, colorless,and odorless gas. It is present in all exhaustgases. If you ever smell exhaust fumes insidethe vehicle, make sure the passenger com-partment is ventilated, and immediately returnthe vehicle to a trained and qualified Volvoservice technician for correction.

Demanding driving
In demanding driving conditions, such as whentowing a trailer or driving in hot weather or forprolonged periods at high altitudes, it may be a
good idea to switch to a higher-octane fuel (AKI5
91 or higher) or to switch to another brand ofgasoline in order to fully utilize the vehicle'sengine capacity and optimize traction.

Related information
Fuel (p. 461)
Emission controls (p. 464)
Emission controls
Three-way catalytic converter
Keep your engine properly tuned. Certainengine malfunctions, particularly involving theelectrical, fuel or distributor ignition systems,may cause unusually high three-way catalyticconverter temperatures. Do not continue tooperate your vehicle if you detect enginemisfire, noticeable loss of power or otherunusual operating conditions, such as engineoverheating or backfiring. A properly tunedengine will help avoid malfunctions thatcould damage the three-way catalytic con-verter.
Do not park your vehicle over combustiblematerials, such as grass or leaves, which cancome into contact with the hot exhaust sys-tem and cause such materials to ignite undercertain wind and weather conditions.
Excessive starter cranking (in excess of oneminute), or an intermittently firing or floodedengine can cause three-way catalytic con-verter or exhaust system overheating.
Remember that tampering or unauthorizedmodifications to the engine, the Engine Con-trol Module, or the vehicle may be illegal andcan cause three-way catalytic converter orexhaust system overheating. This includes:altering fuel injection settings or compo-nents, altering emission system components
or location or removing components, and/orrepeated use of leaded fuel.

NOTE
Unleaded fuel is required for vehicles withthree-way catalytic converters.

Heated oxygen sensors
The heated oxygen sensors monitor the oxygencontent of the exhaust gases. Readings are fedinto a control module that continuously monitorsengine functions and controls fuel injection. Theratio of fuel to air into the engine is continuouslyadjusted for efficient combustion to help reduceharmful emissions.

Related information
Octane rating (p. 462)
Fuel (p. 461)
5AKI (Anti Knock Index) is an average value of RON (Research Octane Number) and MON (Motor Octane Number) - (RON)+(MON)/2

||
STARTING AND DRIVING
468
If contact occurs, flush the affected areaimmediately with water. Obtain medicalhelp immediately if eyes are affected.
Never expose the battery to open flameor electric spark. Do not smoke near thebattery. Failure to follow the instructionsfor jump starting can lead to injury.

NOTE
The vehicle cannot be started if the hybridbattery is discharged.

Related information
Starting the vehicle (p. 426)
Ignition modes (p. 429)
Adjusting the steering wheel (p. 193)
Selecting ignition mode (p. 430)
Towing using a towline
This section refers to one vehicle being towedbehind another using a towline.
Twin Engine vehicles may not be towed behindanother vehicle due to the risk of damage to theelectric motor. The vehicle must be lifted onto atow truck and transported with all four wheels onthe bed or lifting platform of the truck (no wheelsmay touch the road).
Towing another vehicle
Towing another vehicle requires a lot of power -use the AWD drive mode. This helps charge thehybrid battery and improve the vehicle's drivingand roadholding characteristics.
Before towing another vehicle, check applicablespeed limit regulations.

Jump starting
Do not tow the vehicle to start the engine. Use anauxiliary battery if the start battery's charge levelis so low that the engine cannot be started.

CAUTION
Attempts to tow-start the vehicle could causedamage to the electrical drive motor andthree-way catalytic converter.
Related information
Attaching and removing the towing eyelet(p. 469)
Hazard warning flashers (p. 157)
Recovery (p. 470)
Jump starting using another battery (p. 466)
Selecting ignition mode (p. 430)

STARTING AND DRIVING
}}
* Option/accessory.469
Attaching and removing the towingeyelet
Use the towing eyelet to tow another vehicle.Screw the towing eyelet securely into place inthe threaded outlet behind the cover on theright-hand side of the rear bumper.

NOTE
If the vehicle is equipped with a towbar, thereis no rear attachment for the towing eye.

Attaching the towing eyelet
Take out the towing eyelet, which is stored ina foam block under the floor in the cargo
compartment7.
Remove the cover - press the marker withyour finger while prying open the oppositeside/corner open with a coin or similar.
> The cover turns along its center line andcan then be removed.
3.Screw in the towing eyelet until it reaches itsstop.
Fasten the eyelet securing by, for example,inserting a lug wrench* through it and usingthis as a lever.

CAUTION
It is important that the towing eye is screwedin securely as far as possible.

Removing the towing eyelet
–Unscrew the towing eyelet after use andreturn it to its storage location in the foamblock.
Replace the cover on the bumper.
7The design and location of the foam block may vary depending on vehicle model.

||
STARTING AND DRIVING
* Option/accessory.470

Related information
Towing using a towline (p. 468)
Recovery (p. 470)
Tool kit (p. 556)
Recovery
This section refers to transporting the vehiclewith a tow truck or similar vehicle.
Call a professional towing service for assistance.
In certain conditions, the towing eyelet can beused to pull the vehicle onto a flatbed tow truck.

CAUTION
Note that vehicles with Twin Engine mustalways be towed raised with all wheels on thetow truck.
For vehicles equipped with leveling control*:If the vehicle is equipped with pneumatic suspen-sion, this feature must be turned off before thevehicle is lifted onto a tow truck. Turning off thefunction in the center display.
1.Tap Settings in the Top view.
2. Tap My CarParking Brake andSuspension.
3.Select Disable Leveling Control.
The vehicle's location and ground clearancedetermine if it can be lifted onto a tow truck. Ifthe incline of the tow truck is too steep or if theground clearance under the vehicle is insufficient,attempting to pull it up may result in damage. Inthis case, the vehicle should only be lifted withthe tow truck's lifting equipment.
WARNING
No person or object should be behind the towtruck when the vehicle is lifted onto the bedof the truck.

Related information
Attaching and removing the towing eyelet(p. 469)

||
WHEELS AND TIRES
* Option/accessory.556

Related information
Recommended tire pressure (p. 551)
Adjusting tire pressure (p. 550)
Calibrating the tire pressure monitoring sys-tem* (p. 553)
Viewing tire pressure status in the centerdisplay* (p. 554)
Tire pressure monitoring system* (p. 551)
Inflate tires with the compressor included inthe tire sealing system (p. 569)
When changing wheels
The wheels can be changed, e.g. to switch tosnow tires or spare tires. Follow the applicableinstructions for removing and installing thewheel.

Changing to tires of another dimension
Make sure that the tire dimension is approved foruse on the vehicle.
If you change to tires of another dimension, con-tact an authorized Volvo workshop to update thevehicle's software. A software update may benecessary when changing to tires of larger/smaller dimensions or when changing to or fromsnow tires.

Related information
Removing a wheel (p. 558)
Installing a wheel (p. 560)
Tool kit (p. 556)
Snow tires (p. 563)
Spare wheel (p. 561)
Wheel bolts (p. 557)
Tool kit
Tools for e.g. towing or changing wheels areprovided in the vehicle's trunk.
The foam block under the cargo compartmentfloor contains the towing eyelet, the tire sealingsystem, the tool for removing plastic wheel boltcovers and the tool for removing the lockingwheel bolts.
If the vehicle is equipped with a spare wheel*14, ajack, lug wrench, and a package withdisposable gloves and a bag for the damagedwheel are also provided.

Related information
When changing wheels (p. 556)
Jack* (p. 557)
14Not available on all models.