engine VOLVO S90 TWIN ENGINE 2019 Repair Manual
[x] Cancel search | Manufacturer: VOLVO, Model Year: 2019, Model line: S90 TWIN ENGINE, Model: VOLVO S90 TWIN ENGINE 2019Pages: 669, PDF Size: 14.33 MB
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Standby mode due to action by the driver
Pilot Assist will be temporarily deactivated andput in standby mode if:
the brakes are applied.
the gear selector is moved to N
a turn signal is used for more than 1 minute.
the vehicle is driven faster than the setspeed for more than 1 minute
Temporarily increasing speed using the accelera-tor pedal, e.g. when passing another vehicle, willnot affect the setting. The vehicle will return tothe set speed when the accelerator pedal isreleased.
When the turn signals are used, Pilot Assist'ssteering assistance will be temporarily deacti-vated. When the turn signal is switched off, steer-ing assistance will be automatically reactivated ifthe traffic lane's side markings can still bedetected.
Automatic standby mode
Pilot Assist is dependent on other systems, such
as Electronic Stability Control (ESC56). If any ofthese other systems stops working, Pilot Assistwill automatically switch off.
WARNING
With automatic standby mode, the driver iswarned by an acoustic signal and a messageon the instrument panel.
The driver must then regulate vehiclespeed, apply the brakes if necessary, andmaintain a safe distance to other vehicles.
Adaptive Cruise Control may go into standbymode if, e.g.:
the driver opens the door.
the brake temperature is high.
the driver's hands are not on the steeringwheel.
the parking brake is applied.
the engine speed (rpm) is too low/high.
the driver unbuckles the seat belt.
one or more of the wheels lose traction.
the camera/radar sensor is covered by snowor heavy rain (the camera lens/radar wavesare blocked)
your vehicle's speed goes below 5 km/h(3 mph) and Pilot Assist cannot determine ifthe vehicle ahead is stationary or if it isanother object, e.g. a speed bump.
your vehicle's speed goes under 5 km/h(3 mph) and the vehicle ahead turns so thatPilot Assist no longer has a vehicle to follow.
Reactivating Pilot Assist from standby
mode
Note: This illustration is general and details may varydepending on model.
To reactivate Pilot Assist:
–Press the button on the steering wheel(1).
> Speed will be set to the most recentlystored speed.
56Electronic Stability Control
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WARNING
When Pilot Assist follows another vehicle atspeeds over approx. 30 km/h (20 mph) andchanges target vehicle – from a moving vehi-cle to a stationary one – Pilot Assist willignore the stationary vehicle and insteadaccelerate to the stored speed.
The driver must then intervene and applythe brakes.
Automatic standby mode when switching
targets
Pilot Assist disengages and goes into standbymode if:
your vehicle's speed goes below 5 km/h(3 mph) and Pilot Assist cannot determine ifthe target object is a stationary vehicle oranother object, e.g. a speed bump.
your vehicle's speed goes under 5 km/h(3 mph) and the vehicle ahead turns so thatPilot Assist no longer has a vehicle to follow.
Related information
Pilot Assist (p. 308)
Auto-hold braking with Pilot Assist
Pilot Assist has a special braking function inslow traffic and at a standstill.
Braking function in slow traffic and at a
standstill
In slow-moving, stop-and-go traffic or when stop-ped at a traffic light, driving will resume automati-cally if the vehicle is stopped for less thanapprox. 3 seconds. If it takes more than 3 sec-onds for the vehicle ahead to begin moving again,Pilot Assist will go into standby mode and theAuto-hold brake function will activate.
–Pilot Assist can be reactivated by:
Pressing the button on the steeringwheel keypad.
Pressing the accelerator pedal.
> Pilot Assist will resume following the vehi-cle ahead if it begins to move withinapprox. 6 seconds.
NOTE
Pilot Assist can keep the vehicle stationaryfor no more than 5 minutes – after that timethe parking brake is applied and the functionis deactivated.
The parking brake must be released beforePilot Assist can be reactivated.
Deactivation of the Auto-hold brake function
In certain situations, Auto-hold will be deactivatedwhen the vehicle is at a standstill and Pilot Assistwill go into standby mode. This means that thebrakes will be released and the vehicle couldbegin to roll. The driver must actively apply thebrakes to keep the vehicle stationary.
This can occur if:
the driver depresses the brake pedal
the parking brake is applied
the gear selector is moved to the P, N or Rpositions
the driver puts Pilot Assist in standby mode.
Auto Activate Parking Brake
In certain situations, the parking brake will beapplied to keep the vehicle at a standstill.
This occurs if Pilot Assist is keeping the vehiclestationary using the brakes and:
the driver opens the door or unbuckleshis/her seat belt
Pilot Assist has kept the vehicle at a stand-still for more than approx. 5 minutes
the brakes overheat
the driver switches off the engine manually.
Related information
Pilot Assist (p. 308)
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High temperatures
If the temperature in the passenger compartmentis very high, the camera/radar sensor will switchoff temporarily for approx. 15 minutes after theengine is started to protect its electronic compo-nents. When the temperature has cooled suffi-ciently, the camera/radar sensor will automati-cally restart.
Damaged windshield
CAUTION
If there are cracks, scratches or stone chipson the windshield in front of any of the cam-era and radar unit "windows" and this coversan area of about 0.5 × 3.0 mm(0.02 × 0.12 in.) or more, contact a workshopto have the windshield replaced – an author-ized Volvo workshop is recommended.
Failure to take action could result in reducedperformance for the driver support systemsthat use the camera and radar unit.
It could cause functions to be reduced, deac-tivated completely or produce an incorrectfunction response.
To avoid the risk of loss of function, malfunc-tion or reduced function of the driver supportsystems that use the radar unit, the followingalso apply:
Volvo advises against repairing cracks,scratches or stone chips in the area infront of the camera and radar unit – theentire windshield should instead bereplaced.
Before replacing the windshield, contactan authorized Volvo workshop to verifythat the right windshield has beenordered and installed.
The same type of windshield wipers orwipers approved by Volvo should be usedfor replacement.
CAUTION
If the windshield is replaced, the camera andradar unit must be recalibrated by a workshopto help ensure proper functioning of all of thevehicle's camera and radar-based systems –an authorized Volvo workshop is recom-mended.
Related information
Radar sensor (p. 324)
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CauseAction
The area of the windshield in front of the camera/radar sensor isdirty or covered by ice or snow.Clean the windshield in front of the camera/radar sensor and remove dirt, ice andsnow.
Thick fog, heavy rain or snow is blocking the radar signals or thecamera's range of visibility.No action. Heavy precipitation may sometimes prevent the camera/radar sensor fromfunctioning.
Water or snow is spraying/swirling up and blocking the radar signalsor the camera's range of visibility.No action. Very wet or snow-covered roads may sometimes prevent the camera/radar sensor from functioning.
There is dirt between the inside of the windshield and the camera/radar sensor.Consult a workshop to have the area of the windshield on the inside of the camera'scasing cleaned. An authorized Volvo workshop is recommended.
Bright sunlight.No action. The camera/radar sensor will reset automatically when lighting conditionsimprove.
NOTE
Keep the windshield in front of the cameraand radar unit clean.
High temperatures
If the temperature in the passenger compartmentis very high, the camera/radar sensor will switchoff temporarily for approx. 15 minutes after theengine is started to protect its electronic compo-nents. When the temperature has cooled suffi-ciently, the camera/radar sensor will automati-cally restart.
Damaged windshield
CAUTION
If there are cracks, scratches or stone chipson the windshield in front of any of the cam-era and radar unit "windows" and this coversan area of about 0.5 × 3.0 mm(0.02 × 0.12 in.) or more, contact a workshopto have the windshield replaced – an author-ized Volvo workshop is recommended.
Failure to take action could result in reducedperformance for the driver support systemsthat use the camera and radar unit.
It could cause functions to be reduced, deac-tivated completely or produce an incorrectfunction response.
To avoid the risk of loss of function, malfunc-tion or reduced function of the driver supportsystems that use the radar unit, the followingalso apply:
Volvo advises against repairing cracks,scratches or stone chips in the area infront of the camera and radar unit – theentire windshield should instead bereplaced.
Before replacing the windshield, contactan authorized Volvo workshop to verify
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2 - Brake assistance
If the risk of a collision increases after the colli-sion warning, brake support will be activated.
If the system determines that the pressure thedriver is exerting on the brake pedal is insufficientto prevent the collision, brake support willincrease pressure.
3 - Auto-brake
The automatic braking function is activated at thelast moment.
If the driver has not taken evasive action by thisstage and a collision is imminent, the automaticbraking function will be triggered. This occurswhether or not the driver is pressing the brakepedal. Full braking force will be applied to reducethe speed at impact or reduced braking effect willbe applied if this is sufficient to avoid the colli-sion.
The seat belt tensioners may be activated alongwith the automatic braking function. See "Seatbelt tensioners" for more information.
In certain situations, auto-braking may begin witha limited braking force before applying full brak-ing force.
If City Safety has prevented a collision, the vehi-cle will be kept at a standstill until the drivertakes action. If the vehicle has slowed to avoidcolliding with a slower-moving vehicle ahead, yourspeed will be reduced to that vehicle's speed.
Auto-braking can always be cancelled if thedriver presses hard on the accelerator pedal.
NOTE
When City Safety activates the brakes, thebrake lights come on.
When City Safety applies the brakes, a text mes-sage will appear in the instrument panel to notifythe driver that the function is/was activated.
WARNING
City Safety may not be used to change howthe driver operates the vehicle. The drivermust not only rely on City Safety to brake thevehicle.
Related information
City Safety™ (p. 333)
Setting a warning distance for CitySafety
City Safety is always active, but the function'swarning distance can be adjusted.
NOTE
The City Safety function cannot be deacti-vated. It is activated automatically each timethe engine/electric motor is started.
The alert distance determines the sensitivity ofthe system and regulates the distance at whichthe light, sound and brake pulsations will be acti-vated.
To select warning distance:
1. Select SettingsMy CarIntelliSafe inthe center display's Top view.
2.Under City Safety Warning, tap Late,Normal or Early to set the desired warningdistance.
If the driver feels that the Early setting is givingtoo many warnings or finds them irritating, theNormal or Late warning distance settings canbe selected instead.
If the driver feels that the warnings are too fre-quent and distracting, the warning distance canbe reduced. This will reduce the total number ofwarnings, but it will also result in City Safety pro-viding warnings at a later stage.
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Rear Collision Warning
The Rear Collision Warning (RCW) function canhelp the driver avoid rear-end collisions fromvehicles approaching from behind.
RCW is automatically activated each time theengine is started.
RCW can warn the driver of a potential collisionwith vehicles approaching from behind by rapidlyflashing the turn signals.
If, at a speed below 30 km/h (20 mph), the RCWfunction detects that the car is in danger of beinghit from behind, the seatbelt tensioners may ten-sion the front seatbelts and activate the WhiplashProtection System safety system.
Immediately before a collision from behind, RCWmay also activate the foot brake in order toreduce the forward acceleration of the car duringthe collision. However, the brakes will only beapplied if your vehicle is stationary. The brakeswill be immediately released if the acceleratorpedal is depressed.
Related information
Rear Collision Warning limitations (p. 346)
Whiplash Protection System (p. 46)
Rear Collision Warning limitations
In some situations, it may be difficult for RCW towarn the driver of a collision risk.
This may be the case if:
the vehicle approaching from the rear isdetected at a late stage
the vehicle approaching from the rearchanges lanes at a late stage
the vehicle approaching from the rear is mov-ing at a speed above 80 km/h (50 mph)
a trailer, bicycle holder or similar is con-nected to the vehicle's electrical system - theRCW function will then be automaticallydeactivated.
NOTE
In certain markets RCW does not warn withthe direction indicators due to local trafficregulations – in such cases, that part of thefunction is deactivated.
NOTE
The warning with direction indicators for RearCollision Warning is deactivated if the colli-sion warning distance in the City Safety func-tion is set to the lowest level "Late".
The seat belt tensioning and braking func-tions remain active.
Related information
Rear Collision Warning (p. 346)
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given, the indicator light will become brighter andbegin flashing.
NOTE
The light illuminates on the side of the vehiclewhere the system has detected the vehicle. Ifthe vehicle is passed on both sides simulta-neously, both lights come on.
WARNING
The BLIS function is supplementary driversupport intended to facilitate driving andhelp make it safer – it cannot handle allsituations in all traffic, weather and roadconditions.
The responsibility for changing lanessafely and using good judgment alwaysrests with the driver.
BLIS is not a substitute for the driver'sattention and judgment. The driver isalways responsible for ensuring the vehi-cle 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.
Related information
Activating/deactivating BLIS (p. 348)
BLIS limitations (p. 349)
Recommended maintenance for BLIS(p. 350)
BLIS messages (p. 351)
Activating/deactivating BLIS
The BLIS71 function can be activated/deacti-vated.
Location of BLIS indicator light.72
Indicator light
The BLIS button in the center display's Func-tion view is used to activate/deactivate thefunction.
–Tap the BLIS button in Function view.
> The BLIS indicator light shows the statusof the function: GREEN (on) or GRAY(off).
If BLIS is activated when the engine is started,the indicator lights in the rearview mirrors willflash once.
If BLIS is deactivated when the engine is turnedoff, it will remain off the next time the engine isstarted and the indicator lights will not illuminate.
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Activating/deactivating Cross TrafficAlert
The driver can choose to deactivate the CTA81
function as follows:
Press the Cross Traffic Alertbutton in the center display'sFunction view.
GRAY button indicator light - CTA is deacti-vated.
GREEN button indicator light - CTA is acti-vated.
CTA is automatically activated each time theengine is started.
Related information
Cross Traffic Alert* (p. 352)
Cross Traffic Alert limitations
CTA82 functionality may be reduced in certainsituations.
CTA does not function optimally in all situationsand has certain limitations. The CTA sensors, forexample, cannot "see" through other parkedvehicles or objects blocking the vehicle.
Below are a few examples of situations in whichCTA's field of vision may be initially limited andapproaching vehicles may therefore not bedetected until they are very close to your vehicle:
The vehicle is parked very far into a parking space.
In a diagonal parking space, CTA may be completely"blind" on one side of your vehicle.
CTA's blind zone.
CTA's field of vision.
However, as you back your vehicle slowly out of aparking space, CTA's field of vision changes inrelation to the obstructing vehicle/object and itsblind zone is reduced.
81Cross Traffic Alert82Cross Traffic Alert
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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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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.