2020 VOLVO S90 TWIN ENGINE warning lights

WINDOWS, GLASS AND MIRRORS
* Option/accessory.
170
Rearview/door mirrors
The rearview mirror and door mirrors can be used to improve the driver's visibility behindthe vehicle.
Rearview mirrorThe rearview mirror can be adjusted manually. The rearview mirror is equipped with Home- Link *, auto-dim * and compass *.
Door mirrors
WARNING
The door mirror on the passenger side is curved to improve visibility. Objects in themirror may appear farther away than theyactually are.
The joystick in the drivers' door control panel is used to adjust the position of the door mir-rors. There are also several automatic settingsthat can also be connected to the memory function buttons for the power seat *.
Related information

HomeLink ®
* (p. 445)
Compass
* (p. 449)
Adjusting the rearview mirror dimming function (p. 170)
Adjusting the door mirrors (p. 171)
Storing positions for seats, mirrors and head-up display
* (p. 186)
Activating and deactivating the heated rear window and door mirrors (p. 218)
Adjusting the rearview mirror dimming function
Bright light entering the vehicle from behind, e.g. from the headlights of following vehicles,could reflect in the rearview mirror and doormirrors and cause a glare. Use the dimmingfunction when light from behind is distract-ing.
Auto-dimIf bright light enters the vehicle from behind, the door mirrors will automatically dim. Auto-dim is always active when the engine is run-ning, except when reverse gear is engaged.
NOTE
Adjustments to the sensitivity level will not be noticeable immediately but will insteadtake effect after a short period of time.
The sensitivity level for dimming will affect both the rearview mirror and door mirrors. To change the dimming sensitivity level:1. Tap
Settings in the Top view in the center
display.
2. Tap
My CarMirrors and Convenience.
3. Under
Rearview Mirror Auto Dimming,
select Normal, Dark or Light.

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DRIVER SUPPORT
* Option/accessory.
316
1 - Collision warning
The driver is first alerted to the risk of an immi- nent collision. In vehicles equipped with a head-up display *,
a flashing warning symbol will be displayed on the windshield.
Collision warning symbol on the windshield.
NOTE
Visual warnings on the windshield may be difficult to notice in cases of strong sun-light, reflections, extreme light contrasts,or if the driver is wearing sunglasses or isnot looking straight ahead.
City Safety can detect pedestrians, cyclists or vehicles that are stationary, are moving in thesame direction as your vehicle and are aheadof your vehicle. City Safety can also detect pedestrians, cyclists or large animals that arecrossing the road in front of your vehicle. If there is a risk of a collision with a pedestrian, large animal, cyclist or another vehicle, thedriver will be alerted with light, sound and pul-sations in the brake pedal. At lower speeds,during hard braking or if the accelerator pedalis pressed, the brake pedal pulsation warningwill not be given. The intensity of the brakepedal pulsations varies according to the vehi-cle's speed.
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 the driver is exerting on the brake pedal is insuffi-cient to prevent the collision, brake supportwill increase pressure.
3 - Auto-brake
The automatic braking function is activated at the last moment. If the driver has not taken evasive action by this stage and a collision is imminent, theautomatic braking function will be triggered.This occurs whether or not the driver is press-ing the brake pedal. Full braking force will beapplied to reduce the speed at impact orreduced braking effect will be applied if this issufficient to avoid the collision.
The seat belt tensioner may be activated whenthe automatic braking function is triggered. In certain situations, auto-braking may begin with a limited braking force before applyingfull braking force. If City Safety has prevented a collision, the vehicle will be kept at a standstill until thedriver takes action. If the vehicle has slowed toavoid colliding with a slower-moving vehicleahead, your speed will be reduced to that vehi-cle's speed. Auto-braking can always be cancelled if the driver presses hard on the accelerator pedal.
NOTE
When City Safety activates the brakes, the brake lights come on.
When City Safety applies the brakes, a text message will appear in the instrument panelto notify the driver that the function is/wasactivated.
WARNING
City Safety may not be used to change how the driver operates the vehicle. Thedriver must not only rely on City Safety tobrake the vehicle.

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DRIVER SUPPORT
* Option/accessory.
318
WARNING
No automatic system can guarantee 100% correct function in all situations.You should therefore never test use ofCity Safety in the direction of people,animals or vehicles – this could lead tosevere damage, serious personal injuryor even death.
City Safety warns the driver if there is arisk of collision, but the function cannotreduce the driver's reaction time.
Even if the warning distance has been set to
Early, warnings may be per-
ceived as late in certain situations – e.g. when there are large speed differ-ences or if the vehicle ahead suddenlybrakes heavily.
With the warning distance set to
Early,
warnings come further in advance. This may cause the warnings to come morefrequently than with warning distance
Normal, but is recommended since it
can make City Safety more effective.
NOTE
The warning with direction indicators for Rear Collision Warning * is deactivated if
the collision warning distance in the City Safety function is set to the lowest level "
Late".
The seat belt tensioning and braking func- tions remain active.
Related information
City Safety
™ (p. 314)
City Safety limitations (p. 324)
Rear Collision Warning
* (p. 328)
Detecting obstacles with City Safety
City Safety 54
can help the driver detect other
vehicles, cyclists, large animals and pedes- trians.
VehiclesCity Safety can detect most vehicles that are stationary or are moving in the same directionas your vehicle. In some cases, it can alsodetect oncoming vehicles and crossing traffic. For City Safety to be able to detect a vehicle in the dark, its headlights and taillights must beon and clearly visible.
Cyclists
Examples of what City Safety would interpret to be a cyclist: clear body and bicycle shapes.
54 This function is not available on all markets.

DRIVER SUPPORT
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319
For good performance, the system's function for cyclist detection needs the clearest possi-ble information about the contours of the bicy-cle and of the cyclist's head, arm, shoulders,legs, torso and lower body in combinationwith normal human movements. If large portions of the cyclist's body or the bicycle itself are not visible to the function'scamera, it will not be able to detect a cyclist. The system can only detect adult cyclists rid- ing on bicycles intended for adults.
WARNING
City Safety is supplementary driver sup- port, but it cannot detect all cyclists in allsituations and, for example, cannot see:
partially obscured cyclists.
cyclists if the background contrast of the cyclist is poor - warning and brakeinterventions may then be late or notoccur at all.
cyclists in clothing that hides theirbody contour.
bikes loaded with large objects.
The driver is always responsible for ensur- ing that the vehicle is driven correctly andwith a safety distance suitable for thespeed.
Pedestrians
Examples of what the system considers to be a pedestrian: clear body contours.
For good performance, the system's function for pedestrian detection needs the clearestpossible information about the contours of thepedestrian's head, arm, shoulders, legs, torsoand lower body in combination with normalhuman movements. In order to detect a pedestrian, there must be a contrast to the background, which coulddepend on clothing, weather conditions, etc. Ifthere is little contrast, the person may bedetected late or not at all, which may result ina delayed reaction from the system or no reac-tion at all. City Safety can detect pedestrians even in dark conditions if they are illuminated by thevehicle's headlights.
WARNING
City Safety is supplementary driver sup- port, but it cannot detect all pedestrians inall situations and, for example, cannot see:
partially obscured pedestrians, people in clothing that hides their body con-tour or pedestrians shorter than 80 cm(32 in.).
pedestrians if the background contrastof the pedestrians is poor - warningand brake interventions may then belate or not occur at all.
pedestrians who are carrying largeobjects.
The driver is always responsible for ensur- ing that the vehicle is driven correctly andwith a safety distance suitable for thespeed.

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DRIVER SUPPORT
320
Large animals
Examples of what City Safety would interpret as a large animal: stationary or moving slowly and withclear body contours.
For good performance, the system's function for detecting large animals (e.g. moose,horses, etc.) needs the clearest possible infor-mation about body contours. This entailsbeing able to detect the animal straight fromthe side in combination with normal move-ments for that animal. If parts of the animal's body are not visible to the function's camera, the system will not beable to detect the animal. City Safety can detect large animals even in dark conditions if they are illuminated by thevehicle's headlights.
WARNING
City Safety is supplementary driver sup- port, but it cannot detect all large animalsin all situations and, for example, cannotsee: partially obscured larger animals.
larger animals seen from the front or from behind.
running or fast moving larger animals.
larger animals if the contrast of the ani-mal's background is poor - warningand brake interventions may thenoccur late or not at all.
smaller animals such as cats and dogs.
The driver is always responsible for ensur- ing that the vehicle is driven correctly andwith a safety distance suitable for thespeed.
Related information
City Safety
™ (p. 314)
City Safety limitations (p. 324)
City Safety in crossing traffic City Safety 55
can assist the driver when turn-
ing into the path of an oncoming vehicle in an intersection.
Sector in which City Safety can detect an oncoming vehicle in crossing traffic.
In order for City Safety to detect an oncomingvehicle in situations where there is a risk of acollision, that vehicle must be within the sec-tor in which City Safety can analyze the situa-tion. The following criteria must also be met:
your vehicle's speed must be at least 4 km/h (3 mph)
your vehicle must be making a left turn
the oncoming vehicle's headlights mustbe on
55
This function is not available on all markets.

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DRIVER SUPPORT
324
your lane must have clear side lane mark- ings
your vehicle must be positioned straight inyour lane
the oncoming vehicle must be positionedwithin your vehicle's lane markings
the oncoming vehicle's headlights mustbe on
the function can only handle “front-to-front” collisions
the function can only detect vehicles withfour wheels.
WARNING
Warnings and brake interventions due to an imminent collision with an oncomingvehicle always come very late.
Related information

City Safety
™ (p. 314)
City Safety limitations (p. 324)
City Safety limitations
City Safety 57
functionality may be reduced in
certain situations.
Surroundings
Low objects
Hanging objects, such as flags for overhang- ing loads or accessories such as auxiliarylights or front protective grids that extendbeyond the height of the hood, may limit City Safety functionality.
Slippery road conditions
The extended braking distance on slippery roads may reduce City Safety's capacity tohelp avoid a collision. In these types of situa-tions, the Anti-lock Braking System and Elec- tronic Stability Control (ESC 58
) are designed
for optimal braking power with maintained stability.
Backlighting
The visual warning signal in the windshield may be difficult to detect in bright sunlight, ifthere are reflections, or if the driver is wearingsunglasses or not looking straight ahead.
Heat
If the temperature in the passenger compart- ment is high due to e.g. bright sunlight, thevisual warning signal in the windshield may betemporarily disabled.
Camera and radar sensor's field of vision
The camera's field of vision is limited and in certain situations, it may be unable to detectpedestrians, large animals, cyclists or vehicles,or it may detect them later than expected. Vehicles that are dirty may be detected later than clean vehicles, and in dark conditions,motorcycles may be detected late or not at all. If a text message displayed in the instrument panel indicates that the camera/radar sensoris obstructed, it may be difficult for City Safetyto detect pedestrians, large animals, cyclists,vehicles or lane markings in front of the vehi-cle. City Safety functionality may therefore bereduced. Text messages may not be displayed for all sit- uations in which the windshield sensors areblocked. The driver must therefore alwayskeep the windshield in front of the camera/radar sensor clean.
CAUTION
Only a workshop may perform mainte- nance on driver support components – anauthorized Volvo workshop is recom-mended.
57 This function is not available on all markets.
58 Electronic Stability Control

DRIVER SUPPORT
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325
Driver intervention
Backing up
City Safety is temporarily deactivated when the vehicle is backing up.
Low speed
City Safety is not activated at very low speeds under 4 km/h (3 mph). The system will there-fore not intervene in situations in which yourvehicle is approaching another vehicle veryslowly, such as when parking.
Active driver
Action by the driver always has priority. City Safety will therefore not react or will react at alater stage with a warning or intervention insituations in which the driver is clearly steeringand operating the accelerator pedal, even if acollision is unavoidable. An active and aware driving style may there- fore delay collision warnings and interventionin order to minimize unnecessary warnings.
Other limitations
WARNING
The driver support system only issues a warning for obstacles detected by its radarsensor – thus, a warning may come after adelay or not at all. Never wait for a warning or assistance. Apply the brakes when necessary.
WARNING
Warnings and brake interventions can be triggered late or not at all if the traf-fic situation or external influences pre-vent the camera and radar unit fromproperly detecting pedestrians,cyclists, large animals or vehiclesahead of the vehicle.
To be able to detect vehicles at night,its front and rear lights must work andilluminate clearly.
The camera and radar unit have a lim-ited range for pedestrians and cyclists– the system can provide effectivewarnings and brake interventions if therelative speed is lower than 50 km/h(30 mph). For stationary or slow-mov-ing vehicles, warnings and brake inter-ventions are effective at vehicle speedsof up to 70 km/h (43 mph). Speedreduction for large animals is less than15 km/h (9 mph) and can be achievedat vehicle speeds over 70 km/h(43 mph). At lower speeds, the warn-ing and brake intervention for large ani-mals is less effective.
Warnings for stationary or slow-mov-ing vehicles and large animals can bedisengaged due to darkness or poorvisibility.
Warnings and brake interventions for pedestrians and cyclists are disen-gaged at vehicle speeds over 80 km/h(50 mph).
Do not place, affix or mount anythingon the inside or outside of the wind-shield, or in front of or around the cam-era and radar unit – this could disruptcamera-based functions.
Objects, snow, ice or dirt in the area ofthe camera sensor can reduce thefunction, disengage it completely orgive an improper function response.

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DRIVER SUPPORT
* Option/accessory.
330 If a passing vehicle's speed is more than 15 km/h (9 mph) faster than your vehicle, BLISwill not react.
NOTE
The light illuminates on the side of the vehicle where the system has detected thevehicle. If the vehicle is passed on bothsides simultaneously, both lights come on.
WARNING

The function is supplementary driver support intended to facilitate drivingand help make it safer – it cannot han-dle all situations in all traffic, weatherand road conditions.
The driver is advised to read all sec-tions in the Owner's Manual about thisfunction to learn of its limitations,which the driver must be aware ofbefore using the function.
Driver support functions are not a sub-stitute for the driver's attention andjudgment. The driver is always respon-sible for ensuring the vehicle is drivenin a safe manner, at the appropriatespeed, with an appropriate distance toother vehicles, and in accordance withcurrent traffic rules and regulations.
Related information
Driver support systems (p. 268)
Activating or deactivating BLIS (p. 330)
BLIS limitations (p. 331)
BLIS messages (p. 332)
Activating or deactivating BLIS
The BLIS 63
function can be activated or deac-
tivated.
Activate or deactivate the function using this button inthe center display's Functionview.
GREEN button indicator light – the func- tion is activated.
GRAY button indicator light – the functionis deactivated.
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 turned off, it will remain off the next time theengine is started and the indicator lights willnot illuminate.
Related information
BLIS
* (p. 329)
BLIS limitations (p. 331)
63
Blind Spot Information