2020 VOLVO S90 sensor

DRIVER SUPPORT
* Option/accessory.
342
Driver Alert Control limitations
Driver Alert Control (DAC) functionality may be reduced in certain situations.
In certain situations, the system may provide a warning 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 be affected despite the driver's fatigue – when using the Pilot Assist
* function –
resulting in the driver not getting a warning from DAC. It is therefore very important to always stop and take a break at the slightest signof fatigue, regardless of whether the func-tion has issued a warning or not.
NOTE
The function uses the vehicle's camera and radar sensor, which has certain generallimitations.
Related information
Driver Alert Control (p. 340)
Camera/radar sensor limitations (p. 307)
Lane Keeping Aid
Lane Keeping Aid (LKA 85
) is designed to
actively steer the vehicle on freeways, high- ways and other major roads to help the driverreduce the risk of the vehicle unintentionallyveering out of the lane.
Lake Keeping Aid steers the vehicle back into the lane and/or alerts the driver using vibra-tions in the steering wheel. Lane Keeping Aid is active at speeds between 65–200 km/h (40–125 mph) on roads withclearly visible traffic lane marker lines. On narrow roads, the function may be unavail- able and go into standby mode. The functionwill become available again when the roadbecomes sufficiently wide.
A camera monitors the road/traffic lane's marker lines.
Lane Keeping Aid steers the vehicle back into its lane.
85 Lane Keeping Aid

DRIVER SUPPORT
345
Lane Keeping Aid limitations
In certain demanding driving conditions, Lane Keeping Aid (LKA 88
) may not be able to prop-
erly assist the driver. In these situations, it is recommended that the function be deacti-vated.
Examples of such situations include:
road work
winter driving conditions
poor road surfaces
a very sporty driving style
bad weather with reduced visibility
roads with indistinct or no lane markings
sharp edges or lines other than the lane's side markings
when speed-dependent power steeringwheel resistance is working at reducedpower – e.g. during cooling due to over-heating.
The function cannot detect barriers, railings orsimilar obstacles at the side of the lane.
NOTE
The function uses the vehicle's camera and radar sensor, which has certain generallimitations.
Related information
Lane Keeping Aid (p. 342)
Speed-dependent steering wheel resis- tance (p. 266)
Camera/radar sensor limitations (p. 307)
88
Lane Keeping Aid

DRIVER SUPPORT
346
Lane Keeping Aid symbols and messages
A number of symbols and messages related to Lane Keeping Aid (LKA 89
) may be dis- played in the instrument panel. Several exam- ples are provided below.
Symbol Message Meaning
Driver support system Reduced functionality Service requiredThe system is not functioning as intended. Contact a workshop
A
.
Windscreen sensor Sensor blocked, see Owner's manualThe camera's ability to detect the lane in front of the vehicle is reduced.
Lane Keeping Aid Apply steeringLKA's steering assistance is disabled when the driver's hands are not on the wheel. Follow the instructions and steer the vehicle.
Lane Keeping Aid Standby until steering appliedLKA will go into standby mode until the driver begins steering the vehicle again.
A An authorized Volvo workshop is recommended.
89 Lane Keeping Aid

DRIVER SUPPORT
* Option/accessory.353
Steering assistance during collision risks limitations
The function may have limited functionality in certain situations and not intervene, e.g.:
for smaller vehicles such as motorcycles
if more than half of your vehicle has moved into the adjacent lane
on roads/lanes with indistinct or no sidelane markings
outside the speed range 60-140 km/h(37-87 mph)
when speed-dependent power steeringwheel resistance is working at reducedpower – e.g. during cooling due to over-heating.
Functionality may also be reduced in other sit-uations, such as: road work
winter driving conditions
narrow roads
poor road surfaces
a very sporty driving style
bad weather with reduced visibility.
In these demanding driving conditions, the function may not be able to properly assist thedriver. In these situations, it is recommendedthat it is turned off.
NOTE
The function uses the vehicle's camera and radar sensor, which has certain generallimitations.
Related information
Steering assistance at risk of collision (p. 349)
Run-Off Mitigation with steering assis-tance (p. 350)
Steering assistance during collision risksfrom oncoming traffic (p. 351)
Steering assistance during collision risks from behind
* (p. 352)

DRIVER SUPPORT
354
Symbols and messages for steering assistance during collisionrisks
A number of symbols and messages related to steering assistance may be displayed in the instrument panel. Several examples areprovided below.
Symbol Message
Meaning
Collision avoidance assistance Automatic interventionWhen the function is activated, a message will appear to alert the driver.
Windscreen sensor Sensor blocked, see Owner's manualThe camera's ability to detect the lane in front of the vehicle is reduced.
A text message can be erased by briefly press- ing the
button in the center of the right-
side steering wheel keypad. If the message persists: Contact a workshop ‒
an authorized Volvo workshop is recom- mended.
Related information
Steering assistance at risk of collision(p. 349)
Steering assistance during collision riskslimitations (p. 353)

DRIVER SUPPORT
* Option/accessory.355
Park Assist*
The Park Assist function can help the driver when maneuvering in tight spaces by indicat-ing distances to obstacles using audible sig-nals and graphics in the center display.
Display view showing obstacle zones and sensor sectors.
The center display shows an overview of the vehicle in relation to objects that have beendetected. The marked sector indicates where the obsta- cle is located. The closer the vehicle symbol isto a marked sector forward/rearward, thecloser the detected obstacle is to your vehicle. The side sectors change color as the distance between the vehicle and an object decreases. The audible signals will also speed up the closer the obstacle is to the vehicle. The vol- ume of the audio system will be automaticallylowered. Audible signals for obstacles in front and to the sides of the vehicle are active when thevehicle is moving but will cease after the vehi-cle has been stationary for approx. 2 seconds.Audible signals for obstacles behind the vehi-cle will remain active even when the vehicle isstationary. If a detected obstacle is within approx. 30 cm (1 ft) from the front or rear of the vehicle, thetone will become constant and the active sen-sor's field closest to the vehicle symbol will befilled in. At distances within approx. 25 cm (0.8 ft) from an obstacle to the sides of the vehicle, anrapid pulsing signal will be given and theactive sector fields will change color fromORANGE to RED. The volume of the Park Assist audible signals can be adjusted while the signal is being givenusing the
>II knob or in the center display's
Top view under
Settings.
NOTE
Besides in the sector closest to the vehicle symbol, audible warnings are only providedfor objects located directly in the vehicle'spath.
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. 266)
Park Assist front, rear and sides
* (p. 356)
Activating or deactivating Park Assist
*
(p. 357)
Park Assist symbols and messages(p. 359)
Park Assist limitations (p. 357)

DRIVER SUPPORT
* Option/accessory.
356
Park Assist front, rear and sides *
Park Assist behaves differently depending on which part of the vehicle is approaching anobstacle.
Front camera
The warning signal has a continuous tone when the obstacle is less than approx. 30 cm (1 ft) from thevehicle.
The Park Assist system's front sensors are automatically activated when the engine isstarted. They are active at speedsbelow 10 km/h (6 mph). The distance monitored extends approx. 80 cm (2.5 ft) in front of the vehicle.
NOTE
The Park Assist system is deactivated when the parking brake is used or when P
is selected on vehicles with automatictransmission.
CAUTION
When installing auxiliary lights: Make sure these do not obscure the sensors – theauxiliary lights could be perceived as anobstacle.
Back
The warning signal has a continuous tone when the obstacle is less than approx. 30 cm (1 ft) from thevehicle.
The rear sensors will be activated if the vehicle begins rolling backward or if reverse gear isengaged. The distance monitored extends approx. 1.5 meters (5 ft) behind the vehicle.
Side sensors
The warning signal will begin pulsating rapidly when the obstacle is less than approx. 25 cm (0.8 ft) fromthe vehicle.
Park Assist's side sensors are automatically activated when the engine is started. They areactive at speeds below 10 km/h (6 mph). The distance monitored is approx. 25 cm (0.8 ft) out from the sides. The detection area of the side sensors increa- ses significantly, however, when the steering angle of the front wheel increases and depending on the position of the steeringwheel, obstacles up to approx. 90 cm (3 ft)

DRIVER SUPPORT
}}
* Option/accessory.357
diagonally behind or in front of the vehicle can be detected.
Related information

Park Assist
* (p. 355)
Park Assist sensor field (p. 364)
Activating or deactivating Park Assist
*
The Park Assist function can be activated or deactivated.
Park Assist's front and side sensors are auto- matically activated when the engine is started.The rear sensors are activated if the vehicle ismoving backward or reverse gear is engaged.
Activate or deactivate thefunction using this button inthe center display's Functionview.
GREEN button indicator light – the func- tion is activated.
GRAY button indicator light – the functionis deactivated.
In vehicles equipped with Park Assist Cam- era *, Park Assist can also be activated or deac-
tivated from the relevant camera view.
Related information
Park Assist
* (p. 355)
Park Assist limitations (p. 357)
Park Assist limitations Park Assist may not be able to detect all con- ditions in all situations and functionality maytherefore be limited in certain cases.
The driver should be aware of the following limitations for Park Assist:
WARNING
The parking sensors have dead/blind spots where objects cannot bedetected.
Pay particular attention to people andanimals near the vehicle.
Bear in mind that the front end of thevehicle may swing out towards oncom-ing traffic during the parking maneuver.