2019 VOLVO S90 TWIN ENGINE warning light

DRIVER SUPPORT
* Option/accessory.364
Selecting guidance to a rest area ifthe Driver Alert Control warning hasbeen given
The Rest Stop Guidance function can beswitched on or off.
In vehicles equipped with Sensus Navigation*, thedriver can activate a guide that can automaticallysuggest a suitable rest stop if the DAC warningis given.
To select Rest Stop Guidance:
1.Tap Settings in the center display's Topview.
2.Select My CarIntelliSafeDriver AlertControl.
3.Select/deselect Rest Stop Guidance toactivate/deactivate the function.

Related information
Driver Alert Control (p. 362)
Driver Alert Control limitations
Driver Alert Control (DAC) functionality may bereduced in certain situations.
In certain situations, the system may provide awarning even if it has not detected a change indriving behavior, e.g.:
in strong crosswinds
on grooved road surfaces.
WARNING
In certain cases, driving behavior might not beaffected despite the driver's fatigue – whenusing the Pilot Assist function – resulting inthe driver not getting a warning from DAC.
It is therefore very important to always stopand take a break at the slightest sign of fati-gue, regardless of whether the DAC functionhas issued a warning or not.

NOTE
The function uses the vehicle's camera unit,which has some general limitations – see thesection "Camera unit limitations".

Related information
Driver Alert Control (p. 362)
Camera limitations (p. 330)
Lane Keeping Aid
Lane Keeping Aid (LKA99) is designed toactively steer the vehicle on freeways, highwaysand other major roads to help the driver reducethe risk of the vehicle unintentionally veering outof the lane.
Lake Keeping Assistance steers the vehicle backinto the lane and/or alerts the driver using vibra-tions in the steering wheel.
Lane Keeping Aid is active at speeds between65-200 km/h (40-125 mph) on roads withclearly visible traffic lane marker lines.
On narrow roads, the function may be unavailableand go into standby mode. The function willbecome available again when the road becomessufficiently wide.
A camera monitors the road/traffic lane's marker lines.
99Lane Keeping Aid

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Lane Keeping Aid steers the vehicle back into its lane.
Lane Keeping Aid alerts the driver using vibrations in thesteering wheel100.
Depending on the settings used, Lane KeepingAid functions in different ways:
With Assist101 activated: When the vehicleapproaches a lane marker line, LKA willactively steer the vehicle back into the laneusing light pressure on the steering wheel.
With Warning101 activated: If the vehicle isabout to move over a lane marker line, thedriver will be alerted by vibrations in thesteering wheel.

NOTE
When the direction indicator is activated, theLane Keeping Aid does not provide any warn-ing or intervene with steering.
WARNING
The Lane Keeping Aid function is supple-mentary driver support intended to helpimprove driving safety – it cannot handleall situations in all traffic, weather androad conditions.
The function is not a substitute for thedriver's attention and judgment. The driveris always responsible for ensuring thevehicle is driven in a safe manner, at theappropriate speed, with an appropriatedistance to other vehicles, and in accord-ance with current traffic rules and regula-tions.
100The steering wheel vibrations vary. The more time the vehicle is over the lane marker line, the longer the vibrations.101See "LKA assistance options" under "Activating/deactivating Lane Keeping Aid".

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vated, another symbol will illuminate and thefollowing message will be displayed:
– Lane Keeping Aid – Applysteering
LKA will then be deactivated until the driverbegins actively steering the vehicle again.
The audible signal will stop and the informationsymbol and message will disappear when LKAdetects that the driver is actively steering thevehicle again.

Related information
Lane Keeping Aid (p. 364)
Activating/deactivating LaneKeeping Aid
The Lane Keeping Aid (LKA103) function can beswitched On or Off.
On/Off
Press the Lane Keeping Aidbutton in the center display'sFunction view.
GREEN button indicator light - LKA is acti-vated.
GRAY button indicator light - LKA is deacti-vated.

Related information
Lane Keeping Aid (p. 364)
Selecting type of assistance forLane Keeping Aid
The driver can determine what types of assis-
tance LKA104 should provide if the vehicle veersfrom its lane.
1. Select SettingsMy CarIntelliSafe inthe center display's Top view.
2.Under Lane Keeping Aid Mode, selectwhat assistance LKA should provide:
Assist the driver will receive steeringassistance but no warning.
Both - the driver will receive both steeringassistance and a warning.
Warning - the driver will only receive awarning.

Related information
Lane Keeping Aid (p. 364)
103Lane Keeping Aid104Lane Keeping Aid

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Park Assist front, rear and sides
Park Assist has different parameters dependingon which part of the vehicle is approaching anobstacle.

Front camera
Continuous tone warning signal when the obstacle isless than approx. 30 cm (1 ft) from the vehicle 107.
Park Assist's front sensors are automatically acti-vated when the engine is started. They are activeat speeds below 10 km/h (6 mph).
The distance monitored extends approx. 80 cm(2.5 ft) in front of the vehicle.
NOTE
The Parking Assist system is deactivatedwhen the parking brake is applied or when Pis selected on vehicles with automatic trans-mission.

CAUTION
When installing auxiliary lights: Make surethese do not obscure the sensors – the auxili-ary lights could be perceived as an obstacle.

Back
Continuous tone warning signal when the obstacle isless than approx. 30 cm (1 ft) from the vehicle 107
The rear sensors will be activated if the vehiclebegins rolling backward or if reverse gear isengaged.
The distance monitored extendsapprox. 1.5 meters (5 ft) behind the vehicle.
The Parking Assist system's rear sensors will beautomatically deactivated if the vehicle is backingup with a trailer connected to the vehicle's elec-trical system.
NOTE
When reversing with e.g. a trailer or bike car-rier on the trailer hitch – without Volvo originaltrailer cables – the Parking Assist system mayhave to be turned off manually to prevent thesensors from reacting to these.
107The illustration is generic - details may vary according to vehicle model.

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DRIVER SUPPORT
* Option/accessory.384

Side sensors
Rapid pulsing warning signal when the obstacle is lessthan approx. 25 cm (0.8 ft) from the vehicle 107.
Park Assist's side sensors are automatically acti-vated when the engine is started. They are activeat speeds below 10 km/h (6 mph).
The distance monitored is approx. 25 cm (0.8 ft)out from the sides.
The detection area increases significantly whenthe steering angle of the front wheels increasesand depending on the steering wheel position,obstacles up to approx. 90 cm (3 ft) directlybehind or in front of the vehicle can be detected(also see “Side sensor fields” in the section “Sen-sor field from Park Assist for Park Assist Cam-era”).
Related information
Park Assist* (p. 382)
Sensor field from Park Assist for Park AssistCamera (p. 393)
Activating/deactivating Park Assist
The Park Assist Pilot function can be activated/deactivated.

On/Off
Park Assist's front and side sensors are automat-ically activated when the engine is started. Therear sensors are activated if the vehicle is movingbackward or reverse gear is engaged.
The function can be activated/deactivated in the center dis-play's Function view.
–Tap the Park Assist button in Function view.
> The Park Assist Pilot indicator light showsthe status of the function: GREEN (on) orGRAY (off).
In vehicles equipped with Park Assist Camera,Park Assist can also be activated/deactivatedfrom the relevant camera view.

Related information
Park Assist* (p. 382)
107The illustration is generic - details may vary according to vehicle model.

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Park Assist Camera limitations
The Park Assist Camera may not be able todetect all conditions in all situations and func-tionality may therefore be limited.
The driver should be aware of the following limi-tations for the Park Assist Camera:

WARNING
Be extra cautious whenreversing if this symbol isshown when a trailer, bikecarrier or similar is attachedand electrically connectedto the vehicle.
The symbol indicates thatthe rear parking assist sensors are deacti-vated and will not warn of any obstacles.

NOTE
A bike carrier and other accessories mountedon the rear of the vehicle can obscure thecamera's view.
Blind sectors
There are "blind" sectors between the cameras' fields ofvision.
With 360° view selected, objects/obstacles maynot be detected if they are located in the "joints"where the edges of the individual camera viewsmeet.

WARNING
Even if it seems as though only a fairly smallsection of the screen image is obstructed, thismay mean that a relatively large sector is hid-den and obstacles there may not be detecteduntil they are very near the vehicle.
Defective camera
If a camera sector is dark andcontains this symbol, this indi-cates that the camera is notfunctioning properly.
See the following illustration foran example.
The vehicle's left-side camera is malfunctioning.

Dark camera sector
A dark camera sector may also be displayed inthe following situations, but without the defectivecamera symbol:
a door is open
the trunk lid is open
a rearview mirror is folded in

Lighting conditions
The camera image is automatically adjustedaccording to the current lighting conditions. This

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
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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.