2019 VOLVO S90 TWIN ENGINE ignition

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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. This could prevent fluidsfrom properly lubricating vital compo-nents in the engine before it has reachedthe proper operating temperature.
The engine should be idling when thegear selector is moved. Never accelerateuntil the gear is fully engaged. Accelerat-ing rapidly before a gear is properlyengaged could lead to harder wear ofcomponents.
To help prevent the transmission oil fromoverheating, select P or N when idling ata standstill for prolonged periods of time.

Related information
Switching off the vehicle (p. 428)
Ignition modes (p. 429)
Adjusting the steering wheel (p. 193)
Jump starting using another battery (p. 466)
Selecting ignition mode (p. 430)
Switching off the vehicle
The vehicle can be switched off using the startknob in the tunnel console.
Start knob in the tunnel console.
To switch off the vehicle:
–Turn the start knob clockwise and release toswitch off the vehicle. The control will auto-matically return to the original position.
If the vehicle rolls:
–Turn clockwise and hold the knob until thevehicle switches off.

Related information
Starting the vehicle (p. 426)
Ignition modes (p. 429)
Adjusting the steering wheel (p. 193)
Jump starting using another battery (p. 466)
Selecting ignition mode (p. 430)

STARTING AND DRIVING
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Ignition modes
The vehicle's ignition can be put in variousmodes (levels) to make different functions availa-ble.
To enable the use of a limited number of func-tions when the engine is not running, the ignitioncan be put in one of three different levels: 0, Iand II. These levels are referred to as "ignitionmodes" in the Owner's Manual.
The following table shows which functions areavailable in each ignition mode:
Mode Functions
0The odometer, clock and tem-
perature gauge are illuminatedA.
The power* seats can beadjusted.
The power windows can be used.
The center display is activated
and can be usedA.
The infotainment system can be
usedA.
In this mode, the functions are availa-ble for a limited time and then switchoff automatically.
IThe panoramic roof, power win-dows, 12-volt electrical socket inthe passenger compartment,Bluetooth, navigation, phone,blower and windshield wipers canbe used.
The power seats can be adjusted.
The 12-volt electrical socket* inthe trunk can be used.
Electrical current will be takenfrom the battery in this ignitionmode.
Mode Functions
IIThe headlights illuminate.
Warning/indicator lights illumi-nate for 5 seconds.
A number of other systems areactivated. However, seat and rearwindow heating can only be acti-vated when the engine is running.
This ignition mode uses a lot ofcurrent from the battery andshould be avoided whenever pos-sible!
AAlso activated when the door is opened.

Related information
Starting the vehicle (p. 426)
Adjusting the steering wheel (p. 193)
Jump starting using another battery (p. 466)
Selecting ignition mode (p. 430)

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Selecting ignition mode
The vehicle's ignition can be put in variousmodes (levels) to make different functions availa-ble.

Selecting an ignition mode
Start knob in the tunnel console.
Ignition mode 0 - Unlock the vehicle andkeep the remote key in the passenger com-partment.

NOTE
To set level I or II without engine start – donot depress the brake pedal (or clutch pedalfor vehicles with manual transmission) whenselecting this ignition mode.
Ignition mode I - Turn the start knob clock-wise and release it. The control will automati-cally return to the original position.
Ignition mode II - Turn the start knob clock-wise and hold it there for approx. 5 seconds.Release the knob, which will automaticallyreturn to its original position.
Back to ignition mode 0 - To return to igni-tion mode 0 from mode I and II, turn the startknob clockwise and release it. The controlwill automatically return to the original posi-tion.
Related information
Starting the vehicle (p. 426)
Switching off the vehicle (p. 428)
Ignition modes (p. 429)
Adjusting the steering wheel (p. 193)
Jump starting using another battery (p. 466)
Brake functions
The vehicle's brakes are used to reduce speedor prevent the vehicle from rolling.
In addition to the wheel brakes and parkingbrakes, the vehicle is also equipped with a num-ber of automatic brake assist functions. Thesesystems help the driver by e.g. keeping the vehi-cle stationary when the brake pedal is notdepressed (e.g. at a traffic light or intersection),when starting up a hill or when driving down a hill.
Depending on how the vehicle is equipped, thefollowing brake assist functions may be included:
Auto-hold brakes (Auto Hold)
Hill Start Assist (Hill Start Assist)
Braking assist after a collision
City Safety

Related information
Brakes (p. 431)
Parking brake (p. 434)
Auto-hold brakes (p. 437)
Braking assist after a collision (p. 439)
Hill Start Assist (p. 439)
City Safety™ (p. 333)

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Symbol in the instrument panel
Symbol Meaning
A
B
The symbol will be illuminatedwhen the parking brake is acti-vated.
A flashing symbol indicates that afault has been detected. Read themessage in the instrument panel.
AIn Canada.BIn the US.

Automatic activation
The parking brake is applied automatically:
when the ignition is switched off and the set-ting for automatically activating the parkingbrake is activated in the center display.
if the Auto-hold function (automatic brakeapplication when the vehicle is stationary) isactivated and the vehicle has been stationaryfor a prolonged period of time (5-10minutes).
when the gear selector is moved to P on asteep hill.

Emergency braking
In an emergency, the parking brake can be acti-vated when the vehicle is moving by pulling and
holding up the control. The braking process iscanceled when the control is released or if theaccelerator pedal is depressed.
NOTE
In case of emergency braking at high speeds,a signal sounds during the brake procedure.

Deactivating the parking brake
Deactivating manually
1. Depress the brake pedal firmly.
2. Press the control.
> The parking brake will release and thesymbol in the instrument panel will go out.

Deactivating automatically
1. Fasten your seat belt.
2. Depress the brake pedal firmly.
3. Start the vehicle.
4.Move the gear selector to D or R and pressthe accelerator pedal.
> The parking brake will release and thesymbol in the instrument panel will go out.
NOTE
When the vehicle is initially started, the park-ing brake could disengage automatically evenif the driver's seat belt is not buckled.

Related information
Settings for automatically activating the park-ing brake (p. 436)
Parking brake malfunction (p. 436)
Parking brake (p. 434)
Parking on a hill (p. 436)

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Select gears by moving the spring-loaded, non-locking gear selector forward or backward.

Gear selector positions
Park - P
Park is activated using the P button located nextto the gear selector.
Select P when the vehicle is parked or when star-ting the engine. The vehicle must be stationarywhen Park is selected.
To move to another gear from Park, the brakepedal must be depressed and the ignition inmode II.
When parking – apply the parking brake beforeshifting to Park.
WARNING
Always apply the parking brake when parkingon an incline. Selecting a gear or putting theautomatic transmission in P may not be suffi-cient to keep the vehicle stationary in all sit-uations.

NOTE
The gear selector must be in the P positionbefore the vehicle can be locked and thealarm set.
Help functions
The system will automatically shift to P:
if the ignition is switched off while D or R isselected.
if the driver unbuckles the seat belt andopens the driver's door while the vehicle isrunning with the gear selector in a gear otherthan P.
To park a vehicle with an unbuckled seat belt andopen door – end P mode by shifting to R or Dagain.
The system will not automatically shift to P if theignition is switched off while the gear selector isin the neutral position (N). This is to make it pos-sible to wash the vehicle in an automatic carwash in which the vehicle is pulled forward onrolling wheels.
Reverse - R
Select R when backing up. The vehicle must bestationary when Reverse is selected.

Neutral - N
No gear is selected and the engine can bestarted. Apply the parking brake if the vehicle isstationary with the gear selector in N.
To move the gear selector from Neutral toanother gear, the brake pedal must be depressedand the ignition in mode II.

D drive mode
D is the normal driving gear position. The trans-mission shifts up or down automatically depend-ing on acceleration and speed. The vehicle mustbe stationary when the gear selector is movedfrom R to D.

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–Pull one of the paddles toward the steeringwheel and then release.
"-": Shift down one gear.
"+": Shift up one gear.
As long as the engine speed (rpm) is within thepermissible range for the selected gear, a gearshift will take place each time a paddle is pulled.
After each gear shift, a number indicating thecurrent gear will be displayed in the instrumentpanel.

Turning off Start/Stop
Manual deactivation in gear D and B
–Deactivate the paddles by pulling the rightpaddle (+) toward the steering wheel andholding it until the number of the currentgear is no longer displayed in the instrumentpanel.
>The transmission will revert to gear D or Bdepending on which gear was selectedbefore the paddles were activated.

Automatic deactivation
In gear position D, the steering wheel paddlesare deactivated after a short period of time if theyare not used. The number of the current gear willno longer be displayed in the instrument panel.
In gear position B, the paddles will not activateautomatically.

Related information
Gear selector positions for automatic trans-missions (p. 440)
Shiftlock
The automatic transmission's shiftlock functionhelps prevent inadvertently moving the gearselector between different positions.
Automatic shiftlock
The automatic shiftlock has a separate safetysystem.

From Park - P
To move to another gear from P (Park), the brakepedal must be depressed and the ignition inmode II.

From Neutral - N
If the gear selector is in N and the vehicle hasbeen stationary for at least 3 seconds (with orwithout the engine running), the gear selector willbe locked in that position.
To move the gear selector from N to anothergear, the brake pedal must be depressed and theignition in mode II.

Messages in the instrument panel
If the gear selector is locked in position, a mes-sage will appear in the instrument panel, e.g.Gear lever Press brake pedal to activategear lever.
There is no mechanical shiftlock function.

Related information
Gear selector positions for automatic trans-missions (p. 440)

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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

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Battery drain
The electrical functions in the vehicle drain thebattery to varying degrees. Avoid using ignitionmode II when the engine is switched off. Useignition mode I instead, as this uses less electri-cal current.
Note that certain accessories may also drainpower from the electrical system. Do not usefunctions that use a lot of electrical current whenthe engine is turned off. Examples of such func-tions are:
blower
headlights
windshield wipers
audio system (especially at high volume).
If the starter battery voltage is low, a message isshown in the driver display. The vehicle's energy-saving function will then turn off or reduce certainfunctions, such as the blower and/or the audiosystem.
–Charge the battery by starting the engineand let it run for at least 15 minutes (drivingcharges the battery faster than letting theengine idle).

Related information
Start battery (p. 601)
Ignition modes (p. 429)
Jump starting using another battery
If the start battery is discharged, current fromanother battery can be used to start the vehicle.
Jumper cable connecting points.
CAUTION
The charging point of the vehicle is onlyintended for jump starting the vehicle in ques-tion. The charging point is not intended forjump-starting another vehicle. Using thecharging point to start another vehicle couldcause a fuse to blow, which would cause thecharging point to stop working.
If a fuse has blown, 12 V Battery Fuse failureService required will be displayed in the instru-ment panel. Volvo recommends contacting anauthorized Volvo workshop.
To avoid short circuits or other damage, the fol-lowing steps are recommended when jump star-ting the battery: