2017 VOLVO S90 heating

CLIMATE
* Option/accessory.193
2. Tap the steering wheel heating button
repeatedly to select one of four levels:
Off,High, Middle or Low.
> The level changes and is displayed in the button.
Automatic steering wheel heatingThe automatic function starts heating the steer- ing wheel automatically when the engine isstarted if the temperature is sufficiently cold. Thisfeature can be activated/deactivated. 1. Tap
Settings in the center display's Top
view.
2. Tap
Climate.
3. Under
Auto Steering Wheel Heating
Level, select Off, Low, Middle or High to
activate/deactivate the automatic function.
Related information
• Climate system controls (p. 182)
• Climate system controls in the center display (p. 183)
• Steering wheel (p. 159)
Air conditioning
The air conditioning cools and dehumidifies the air in the passenger compartment.
Activating/deactivating the main air conditioning unit
Air conditioning button in Climate view
1. Open Climate view in the center display. 2. Tap
AC.
> The air conditioning is activated (button lights up)/deactivated (button is off).
When the air conditioning is activated, it will be switched on and off automatically by the climatesystem as necessary.
NOTE
• For the air conditioning to function opti- mally, close the side windows and the moonroof
*
• The air conditioning cannot be activated if the blower is set to
Off
Related information
•Climate system controls in the center display (p. 183)

CLIMATE
* Option/accessory.
194
Turning seat heating * on and off
The seats can be heated for added comfort in cold weather.
Activating/deactivating front seat heating
Steering wheel and seat buttons in the climate bar
1. Tap the left or right side steering wheel and seat button in the center display's climate bar to open the steering wheel and seatheating controls. If the vehicle is not equipped with the optional heated steering wheel or ventilatedseats, the button for seat heating will bedirectly accessible in the climate bar. 2. Tap the seat heating button repeatedly to
select one of four levels:
Off, High, Middleor Low.
> The level changes and is displayed in the button.
Activating/deactivating rear seat heating
From the front seat *
Temperature buttons for Rear climate in Climate view
1. Open Climate view in the center display and
tap Rear climate.
2. Tap the button repeatedly to select one of the following seat heating levels:
Off, Low,Middle or High.
> The level will change and will be displayed in the button.
From the rear seat
With the 2-zone climate system
Seat heating buttons on the climate panel on the rear side of the tunnel console
–Press repeatedly on the left or right side but- tons on the climate panel on the rear side ofthe tunnel console to select one of four lev- els:
Off, High, Middle or Low.
> The level changes and the indicator lights in the button display the level.
With the 4-zone climate system *

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* Option/accessory.195
Seat heating indicator and control on the climate panel on the rear side of the tunnel console
–Tap repeatedly on the left or right side seat heating buttons on the climate panel on therear side of the tunnel console to select one of four levels:
Off, High, Middle or Low.
> The level changes and is displayed on the screen in the climate panel.
Automatically activating/deactivating the seat heating function when theengine is started
The seat heating * can be set to start automati-
cally when the engine is started. The automatic function starts heating the seats when the ambient temperature is sufficiently cold. 1. Tap
Settings in the center display's Top
view.
2. Tap
Climate. 3.
Under
Auto Driver Seat Heating Level andAuto Passenger Seat Heating Level,
select Off, Low, Middle or High to activate/
deactivate the automatic function and select a level for the driver's and passenger's seats.
Related information
• Climate system controls (p. 182)
• Climate system controls in the center display(p. 183)
• Rear climate system controls on the tunnel console
* (p. 185)
Turning front seat ventilation * on
and off
Seat ventilation can be used e.g., to help remove dampness from the seat occupant's clothing.
The ventilation system consists of fans in the seats and backrests that draw air through theseat upholstery. The cooling effect increases asthe air in the passenger compartment becomescooler. This feature can be activated when theengine is running and it monitors the seat's tem-perature, sunlight in the passenger compartmentand the ambient temperature.

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199
Air distribution table
Air distribution can be adjusted manually.
Air distribution Use
If all air distribution buttons are deselected in manual mode, the climate system will revert to automatic mode.
Main air flow from the defroster vents, some flow from the other vents. To remove ice and condensation (with moderate
blower speed).
Main air flow from the dashboard vents, some flow from the other vents. For best comfort in hot weather.
Main air flow from the floor vents, some flow from the other vents. For heating/cooling near the floor.

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Related information
•Towing recommendations (p. 359)
Overheating the engine and transmission
In demanding driving conditions, such as when transporting heavy loads, driving in mountainousareas or in very hot weather there is a risk ofoverheating the engine or transmission.
• The engine's output may be slightly limited if there is a risk of overheating.
• Remove e.g., auxiliary lights mounted in frontof the grille in hot weather.
• If the temperature of the engine coolantbecomes too high, the warning symbol will illuminate and the message
Engine
temperature/Stop safely will be displayed.
Stop the vehicle as soon as possible in a safe place and let the engine idle for severalminutes.
• If the message
Engine temperature/High
temperature Turn off engine or Engine
coolant/Stop safely is displayed, stop
safely and turn off the engine.
• If the transmission begins to overheat, an alternative gear shifting program will beselected. An integrated protective functionwill also by activated, the warning symbol will illuminate and the message
Transmission
warmHigh temperature Reduce speed
or Transmission warmStop safely, wait
for cooling will be displayed in the instru-
ment panel. •
The air conditioning may be switched off temporarily.
• After a prolonged period of driving, do notturn off the engine immediately after stop-ping.
• The engine cooling fan commonly continuesto run for several minutes after the enginehas been turned off.
WARNING
The cooling fan (located at the front of the engine compartment, behind the radiator) maystart or continue to operate (for up to6 minutes) after the engine has beenswitched off.
Related information
•
Driving with a trailer (p. 366)
• Before a long distance trip (p. 353)

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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. 362)
Jump starting
Follow the instructions provided here to jump start your vehicle or to jump start another vehi-cle.
Jumper cable connecting points
If the 12-volt auxiliary battery to be used is in
another vehicle, check that the vehicles are not touching to prevent premature completion of acircuit. Be sure to follow jump starting instruc-tions provided for the other vehicle.
1. Switch off the ignition in your vehicle (set the
ignition to mode 0).

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Battery drain Your vehicle's electrical functions drain the bat- tery to varying extents.
Avoid using ignition mode II as much as posssi-
ble, or electrical functions that require a great deal of electrical current when the engine is notrunning. Using ignition mode I whenever possible con-
sumes less electrical current. Functions that require a great deal of electrical current include:
• the climate system blower
• headlights
• wipers
• infotainment system (especially at high vol-ume).
If the battery's charge level is low, a text messagewill appear in the instrument panel. The vehicle'senergy-saving function will then turn off orreduce certain functions that are currently con-suming electrical current. If the battery needs to be recharged, start the engine and let it idle for at least 15 minutes ordrive the vehicle (driving charges the batteryfaster than letting the engine idle).
Related information
• Ignition modes (p. 370)
Starting the engine
The engine can be started using the start knob on the tunnel console if there is a remote key inthe passenger compartment.
Start knob in the tunnel console between the front seats (generic illustration)
WARNING
Before starting the engine:
• Fasten the seat belt.
• Check that the seat, steering wheel and mirrors are adjusted properly.
• Make sure the brake pedal can bedepressed completely. Adjust the seat ifnecessary. To start the engine.
1. A remote key must be in the passenger com-
partment. On models with the standard Passive Start, the key has to be in the frontsection of the passenger compartment. If thevehicle is equipped the optional PassiveEntry system (keyless locking/unlocking) thekey can be anywhere in the vehicle.
2. Press firmly on the brake pedal 2
.
3. Turn the start knob toward START and
release it to start the engine.
> The starter motor will crank until the engine starts or its overheating protection is triggered.
2If the vehicle is moving, it is only necessary to turn the start knob toward START to start the engine.

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STARTING AND DRIVING
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CAUTION
• When starting in cold weather, the auto- matic transmission may shift up at slightlyhigher engine speeds than normal untilthe automatic transmission fluid reachesnormal operating temperature.
• Do not race a cold engine immediatelyafter starting. Oil flow may not reachsome lubrication points fast enough toprevent engine damage.
• The engine should be idling when youmove the gear selector. Never accelerateuntil after you feel the transmissionengage. Accelerating immediately afterselecting a gear will cause harsh engage-ment and premature transmission wear.
• Selecting
P or N when idling at a stand-
still for prolonged periods of time will helpprevent overheating of the automatictransmission fluid.
Related information
• Ignition modes (p. 370)
• Turning the engine off (p. 374)
• Changing the remote key's battery (p. 215)
• Jump starting (p. 364)
Turning the engine off
The engine can be turned off using the start knob on the tunnel console.
Start knob in the tunnel console between the front seats
To turn off the engine:
–Turn the start knob toward STOP and
release it to switch the engine off.
If the gear selector is in P or if the vehicle is mov-
ing:
–Hold the knob in the STOP position until the
engine stops.
Related information
• Starting the engine (p. 372)
• Ignition modes (p. 370)
Drive modes
*
Selecting a drive mode affects the vehicle's driv- ing characteristics to help make driving moreenjoyable or easier in certain types of situations.
The following systems are adapted to help pro- vide the best vehicle performance in the respec-tive drive modes: • Steering
• Engine/transmission/All Wheel Drive
*
• Brakes
• Suspension control
• Instrument panel
• Start/Stop
• Climate system settings
Select the drive mode best suited to the current driving conditions. Please be aware that not all modes can be selected in all driving situations. The selectedmode will be displayed in the instrument panel.