climate control VOLVO XC90 T8 2018 Owner´s Manual

CLIMATE CONTROL
235
NOTE
Maintained climate comfort is not possible when there is not sufficient residual engineheat to maintain the climate settings in thepassenger compartment, or if the outsidetemperature is above approximately 20 °C(68 °F).
NOTE
Climate comfort maintenance will be deacti- vated if the vehicle is locked from the outsidein order to avoid using residual engine heatunnecessarily. This function is intended to beused to maintain climate comfort when thedriver or a passenger remains in the vehicleafter the engine is turned off.

CLIMATE CONTROL
236
Parking climate symbols andmessages
A number of symbols and messages related to parking climate may be displayed in the instru-ment panel.
SymbolMessageMeaning
Parking climate Service requiredParking climate is not functioning properly. Contact a workshop A
to have the system checked as
soon as possible.
Parking climate Temporarily unavailableParking climate is temporarily not functioning properly. If the problem persists, contact a workshop A
to have the system checked.
Parking climate Unavailable Charge level too lowThe parking climate cannot be activated because the hybrid battery's charge level is too low to start the high-voltage coolant heater. Charge the battery.
Parking climate Unavailable, not con- nected to power supplyThe parking climate cannot be activated if the charging cable is not connected. Connect the charg- ing cable.
Parking climate Limited Charge level too lowThe parking climate is operating with limited functionality because the hybrid battery's charge level is too low to start the high-voltage coolant heater. Charge the battery.
A An authorized Volvo workshop is recommended.
Related information
• Parking climate (p. 230)

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STARTING AND DRIVING
444Can provide the combustion engine with extra electrical current.
Electric motor - Powers the vehicle using electricity. 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. 406)
• Starting and stopping the combustion enginein Twin Engine vehicles (p. 444)
• Drive modes (p. 445)
• Transmission (p. 438)
• Factors affecting electric motor range(p. 458)
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 temperaturesAt low ambient temperatures, the combustion engine 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, the electric motor's driving range and power may bereduced and affect how often the combustionengine automatically starts.
Emission control systemTo 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.
Related information
•
Drive systems (p. 443)
• Economical driving (p. 456)
• Using the electric motor only (p. 457)
• Drive modes (p. 445)

STARTING AND DRIVING
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* Option/accessory.445
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's many 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
• Pneumatic suspension
* and shock absorbers
• Instrument panel
• Climate control settings
Select the drive mode that is best suited to the current 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 emit any 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 unventilated area 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.
HYBRID
• This is the default mode in which the electric motor and combustion engine work together.
The vehicle starts in Hybrid mode. The control system uses both the electric motor and the gas-oline engine - separately or in tandem - and cal-culates optimal utilization with regard to perform-ance, fuel consumption and comfort. At highspeeds, ground clearance is automatically low- ered 4
to reduce air resistance. Driving capacity on
the electric motor alone is determined by factors such as the hybrid battery's charge level, the need for heat/cooling in the passenger compart-ment, etc. If there is sufficient charge in the battery, it is possible to drive solely on electric power. Whenthe accelerator pedal is pressed, only the electricmotor will be activated until the battery reaches acertain charge level. Above this level, the currentin the battery cannot supply the power requestedby the accelerator pedal and the combustionengine will start. When the hybrid battery's charge level is low, the combustion engine will start more frequently tosave the remaining current in the battery. Chargethe hybrid battery from a 120-240 volt outlet using a charging cable, or activate
Charge in
Function view to reset the option of only using the electric motor. This drive mode is designed for low energy con- sumption with an optimized mix between theelectric motor and gasoline engine, without com-promising on climate comfort or driving experi-ence. When faster acceleration is requested bythe driver, the electric driveline will be utilized tohelp provide maximum additional power. Thevehicle also monitors the driving conditions andautomatically engages all-wheel drive if neces-sary. All-wheel drive and extra electric power arealways available regardless of the battery'scharging status.
4 For vehicles with pneumatic suspension.

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STARTING AND DRIVING
446
Information in the instrument panel
When driving in Hybrid mode, a hybrid gauge will be displayed in the instrument panel. The gaugewill indicate the amount of electrical currentrequired when the driver depresses the accelera-tor pedal. The marker between the lightning andthe drop shows how much current is available.
The instrument panel gauge when both the electric motor and the combustion engine are being used.
The instrument panel also shows how much current is being restored to thebattery (regenerated) during light brak-ing.
PURE
•Uses the electric motor only, with the lowest possible energy consumption and carbon dioxide emissions. This drive mode maximizes the use of the hybrid battery. Ground clearance is lowered
4
to reduce
air resistance and certain climate system func- tions are reduced to provide the longest possibledriving distance using only electricity. Pure mode is available when the hybrid battery is sufficiently charged. Even in Pure mode, the com-bustion engine will start if the charge level in thebattery gets too low. The combustion engine willalso start
• if the vehicle's speed goes above 125 km/h(78 mph)
• if the driver requests more power than theelectric motor can provide
• if factors such as cold weather affect thesystem or components.
This drive mode is optimized for maximum drivingdistance with electric propulsion and is primarilyintended for use in city driving. Pure helps pro-vide the lowest possible consumption even whenthe hybrid battery is fully discharged. ECO climateis activated to control the climate in the passen-ger compartment, and in slippery road conditionsslightly more wheel spin may be permitted beforeall-wheel drive is automatically activated.
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 electricity consuming functions are reduced. Some ofthese settings can be reset manually, but fullfunctionality will only be restored by leaving
Pure mode or adapting the Individual drive
mode to full climate system functionality.
If condensation forms on the windows, tap the max defroster button, which will function normally.
4 For vehicles with pneumatic suspension.

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STARTING AND DRIVING
448
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 has been activated in the center display.
Settings view 5
for Individual drive mode.
1. Tap Settings in the Top view.
2. Tap
My CarIndividual Drive Mode and
select Individual Drive Mode. 3.
Under
Presets, select one of the following
drive modes as a basis: Pure, Hybrid orPower.
The following settings can be modified: •
Driver Display
•Steering force
•Powertrain Characteristics
•Brake Characteristics
•Suspension Control
•ECO Climate.
Using the combustion engineAn advanced control system determines the dis- tance that the vehicle can be driven on the com- bustion engine, electric motor, or both at the same time. Its primary function is to use the motor/engine and the current available in the hybrid battery asefficiently as possible based on the characteris-tics of the various drive modes and the poweroutput requested by the driver by pressing theaccelerator pedal. In certain cases, temporary limitations in the sys- tem or mandatory functions to help maintain alow overall emissions level may result in greateruse of the combustion engine.
5 The image is schematic and the details may vary depending on vehicle model or software update.

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STARTING AND DRIVING
456
Related information
•Hill Descent Control (p. 454)
• Changing drive mode (p. 449)
Economical driving
Drive economically and environmentally con- scious by thinking ahead, avoiding rapid startsand stops and adapting driving style and speedto the current traffic conditions.
Planning for electric drivingIt is important to plan electric motor use carefully to achieve the best possible mileage:
Charge
• Charge the vehicle regularly by plugging it into an electrical outlet. Make it a habit to always begin trips with the hybrid battery fully charged.
• Locate charging stations along your route.
• If possible, choose parking spots with charg-ing stations.
NOTE
Charge the vehicle from the electricity grid as often as possible!
Preconditioning
•
Whenever possible, precondition the vehicle before driving by connecting the chargingcable to an electrical outlet.
• Avoid parking the vehicle somewhere wherethe interior will become too hot or too coldwhile the vehicle is parked. If possible, parkthe vehicle in a climate-controlled garage. •
During a short drive after passenger com-partment preconditioning, turn off the pas-senger compartment fan or the air condition-ing in a hot climate.
• If preconditioning is not possible when it iscold outside, use seat and steering wheelheating first. Avoid heating the entire pas-senger compartment to reduce the amountof current being taken from the hybrid bat-tery.

STARTING AND DRIVING
458•
Hybrid gauge (p. 87)
• Factors affecting electric motor range (p. 458)
• Starting and stopping the combustion enginein Twin Engine vehicles (p. 444)
• "Hold" and "Charge" functions (p. 459)
Factors affecting electric motorrange
A number of factors affect the electric motor's driving range. The ability to achieve a long driv-ing range varies according to the outside condi-tions and to how the vehicle is driven.
The certified value for the distance that can be driven using the electric motor should not beconsidered an expected driving range. The actualrange is dependent on a number of factors.
Factors affecting driving rangeThe driver can influence some factors affectingdriving range, but not all. The longest range is achieved under very favora- ble conditions when all factors positively influ- ence range.
Factors the driver cannot control
There are several outside conditions that affect range to varying degrees: • the current traffic situation
• driving short distances
• topography
• ambient temperature and headwinds
• road conditions and road surface.
The following table shows the approximate rela- tionship between ambient temperature and driv-ing range with normal climate settings and withclimate settings turned off. Up to a certain limit, warmer ambient tempera-tures increase the electric motor's driving range.
Ambient tem-peratureClimate set-tings turnedoff
Normal cli-mate set-tings
30 °C (86 °F) 95 % 80 %
20 °C (68 °F) 100 % 90%
10 °C (50 °F) 90 % 80 %
0 °C (32 °F) 80 % 60 %
-10 °C (14 °F) 70 % 40 %

STARTING AND DRIVING
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459
Factors the driver can control
The driver should be aware that the following fac- tors help conserve energy and improve drivingrange:• charging the battery regularly
• preconditioning
• Pure drive mode
• climate control settings
• speed and acceleration
• the
Hold function
• tires and tire pressure.
The following table shows the approximate rela- tionship between constant speed and drivingrange. Driving at a lower constant speed helpsincrease the electric motor's driving range.
Constant speed
100 km/h (62 mph) 50 %80 km/h (50 mph) 70 %
60 km/h (37 mph) 90 %
50 km/h (31 mph) 100 %
NOTE
• The figures shown in the tables pertain to a new vehicle.
• None of the figures are absolute and areaffected by e.g. driving style, environmentand other conditions.
Related information
• Using the electric motor only (p. 457)
• Economical driving (p. 456)
• "Hold" and "Charge" functions (p. 459)
• Drive modes (p. 445)
"Hold" and "Charge" functions
In certain situations, it can be useful to control the hybrid battery's charge level while driving. This is possible with the
Hold and Charge func-
tions, which are available in all drive modes.
Function buttons for Hold and ChargeThe functions can be activated in the center dis- play's Function view.
Hold
Battery level sustained for later use.
This function retains the charge in the hybrid battery for theelectric motor and saves availa-ble electrical current for use at
a later time, such as when driving in an urban area or residential neighborhood.
Hold is availa-
ble regardless of the hybrid battery's charge level. The vehicle will function as in normal hybrid driv- ing with a discharged battery - in addition toreusing energy from e.g. regenerative braking, thecombustion engine will be used more frequentlyto maintain the charge in the battery.

STARTING AND DRIVING
467
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 drivingIn demanding driving conditions, e.g. when driving in a hot climates, driving with a trailer or drivingfor longer periods at higher altitudes (mountainlandscapes) than normal, it is recommended switching to a higher octane fuel than AKI 916
or
changing gasoline brand to take full advantage of your car's engine capacity and obtain the opti-mum driving force.
Related information
• Fuel (p. 464)
• Emission controls (p. 467)
Emission controls
Three-way catalytic converter
•Keep your engine properly tuned. Certain engine 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 with three-way catalytic converters.
Heated oxygen sensorsThe heated oxygen sensors monitor the oxygen content 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. 465)
• Fuel (p. 464)
6
AKI (Anti Knock Index) is an average value of RON (Research Octane Number) and MON (Motor Octane Number) - (RON)+(MON)/2