sensor VOLVO V90 CROSS COUNTRY 2021 Service Manual

DRIVER SUPPORT
* Option/accessory.
294
Cruise control standby mode Cruise control (CC 31
) can be deactivated and
put in standby mode. This may happen auto- matically or be due to driver intervention.
Standby mode means that the function is selected in the instrument panel but not acti-vated. In standby mode, cruise control will notregulate speed.
Standby mode due to action by the
driver
Cruise control will be deactivated and put instandby mode if any of the following occurs:
The brakes are applied.
The gear selector is moved to
N.
The vehicle is driven faster than the setspeed for more than 1 minute.
The driver must then control the vehicle'sspeed. Temporarily increasing speed using the accel- erator pedal, e.g. when passing another vehi-cle, will not affect the setting. The vehicle willreturn to the set speed when the acceleratorpedal is released.
Automatic standby modeThe function may automatically go intostandby mode if one of the following occurs: The wheels lose traction.
The engine speed (rpm) is too low/high.
The temperature in the brake system becomes too high.
The vehicle's speed goes below 30 km/h(20 mph).
The driver must then control the vehicle'sspeed.
Related information
Cruise control (p. 291)
Selecting and activating cruise control(p. 292)
Deactivating cruise control (p. 293)
Adaptive Cruise Control
*32
Adaptive Cruise Control (ACC 33
) can help the
driver to maintain a constant speed, com- bined with a preset time interval to the vehi-cle in front.
The camera/radar sensor measures the distance to the vehicle ahead.
Adaptive Cruise Control can help provide a more relaxed driving experience on long tripson highways or long, straight roads with eventraffic flows. The driver sets a speed and a time interval to the vehicle ahead. If the camera/radar sensordetects a slower-moving vehicle ahead, yourvehicle's speed will be automatically adaptedaccording to the set time interval to that vehi-
31 Cruise Control
32 Depending on market, this function can be either standard or optional.
33 Adaptive Cruise Control

DRIVER SUPPORT
* Option/accessory.295
cle. When there are no longer slower-moving vehicles ahead, the vehicle will return to theset speed. If the Curve Speed Assist (CSA)
* function is
activated, it may also affect the vehicle's speed. Adaptive Cruise Control is designed to: smoothly regulate speed. The driver must apply the brakes in situations requiringimmediate braking. For example, whenthere are great differences in speedbetween vehicles or if the vehicle aheadbrakes suddenly. Due to limitations in theradar sensor, braking may occur unexpect-edly or not at all.
follow a vehicle ahead in the same laneand maintain a time interval to that vehicleset by the driver. If the radar sensor doesnot detect a vehicle ahead, it will insteadmaintain the speed set by the driver. Thiswill also happen if the speed of the vehicleahead exceeds the set speed for your vehi-cle.
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.
CAUTION
Only a workshop may perform mainte- nance on driver support components – anauthorized Volvo workshop is recom-mended.
Related information
Driver support systems (p. 278)
Adaptive Cruise Control
* controls (p. 296)
Adaptive Cruise Control
* displays (p. 296)
Selecting and activating Adaptive Cruise Control
* (p. 297)
Adaptive Cruise Control
* limitations
(p. 300)
Symbols and messages for AdaptiveCruise Control
* (p. 302)
Collision risk warning from driver support (p. 319)
Setting time interval to the vehicle ahead(p. 322)
Adjusting set speed for driver support(p. 321)
Auto-hold braking with driver support(p. 323)
Switching target vehicles with driver sup-port (p. 320)
Passing assistance
* (p. 318)
Contacting Volvo (p. 26)

||
DRIVER SUPPORT
* Option/accessory.
300 such as Electronic Stability Control (ESC
45
).
The driver opens the door.
The driver unbuckles the seat belt.
The engine speed (rpm) is too low/high.
One or more of the wheels lose traction.
The brake temperature is high.
The parking brake is applied.
The camera and radar unit is covered by snow or heavy rain (the camera lens/radarwaves are blocked).
Your vehicle's speed goes below 5 km/h(3 mph) and ACC cannot determine if thevehicle ahead is stationary or if it isanother object, e.g. a speed bump.
Your vehicle's speed goes below 5 km/h(3 mph) and the vehicle ahead turns sothat ACC no longer has a vehicle to follow.
Related information

Adaptive Cruise Control
* (p. 294)
Selecting and activating Adaptive Cruise Control
* (p. 297)
Deactivating Adaptive Cruise Control
*
(p. 298)
Adaptive Cruise Control
* limitations
(p. 300)
Adaptive Cruise Control *46
limitations Adaptive Cruise Control (ACC 47
) may have
limited functionality in certain situations.
Steep roads and/or heavy loadsAdaptive Cruise Control is primarily intended to be driven on flat roads. The function maynot be able to maintain the correct time inter-val to the vehicle ahead when driving downsteep hills. The driver should be extra attentiveand prepared to apply the brakes. Do not use Adaptive Cruise Control if the vehi- cle is carrying a heavy load or towing a trailer.
Drive mode unavailableThe Off Road drive mode cannot be selected
if Adaptive Cruise Control is activated.
WARNING
This is not a collision avoidance sys- tem. The driver is always responsibleand must intervene if the system failsto detect a vehicle ahead.
The function does not brake for peopleor animals and does not brake for smallvehicles, such as bikes and motorcy-cles. Similarly, it does not brake for lowtrailers, oncoming, slow-moving or sta-tionary vehicles and objects.
Do not use the function in demandingsituations, such as in city traffic, atintersections, on slippery surfaces,with a lot of water or slush on the road,in heavy rain/snow, in poor visibility, onwinding roads, or on on/off ramps.
NOTE
The function uses the vehicle's camera and radar sensor, which has certain generallimitations.
Related information

Adaptive Cruise Control
* (p. 294)
Camera/radar sensor limitations (p. 390)
45
Electronic Stability Control
46 Depending on market, this function can be either standard or optional.

DRIVER SUPPORT
* Option/accessory.303
Symbol Message Meaning
The symbol is WHITE The vehicle is maintaining the stored speed.
Adaptive Cruise Contr. Unavailable
The symbol is GRAY Adaptive Cruise Control is in standby mode.
Adaptive Cruise Contr. Service required
The symbol is GRAYThe system is not functioning as intended. Contact a workshop
‒ an authorized Volvo
workshop is recommended.
Windscreen sensor Sensor blocked, see Owner's manualClean the windshield in front of the camera and radar sensors.
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
Adaptive Cruise Control
* (p. 294)
Contacting Volvo (p. 26)

DRIVER SUPPORT
* Option/accessory.
304
Pilot Assist *53
Pilot Assist can help the driver keep the vehi- cle in the current traffic lane and maintain aneven speed and a set time interval to thevehicle ahead.
Get to know Pilot Assist
The camera/radar sensor monitors the distance to the vehicle ahead and detects lane markings.
Camera and radar sensor
Distance monitor
Lane marker line monitors
Pilot Assist helps to steer the vehicle, and you may need to drive a few miles with Pilot Assistbefore you feel completely at home with the function. It is important to be familiar with all of the function's applications and limitations in order to take advantage of all it has to offer. The Pilot Assist function is primarily intended for use on highways and other major roadswhere it can help provide a more comfortableand relaxing driving experience. The driver sets the desired speed and distance to the vehicle ahead. Pilot Assist monitors thedistance to the vehicle ahead and the trafficlane's side markers using the camera. The sys-tem maintains the set time interval to the vehi-cle ahead by automatically adjusting your vehi-cle's speed and keeps your vehicle in its laneby providing steering assistance. If the Curve Speed Assist (CSA)
* function is
activated, it may also affect the vehicle's speed. Pilot Assist regulates speed by accelerating and braking. It is normal for the brakes to emita slight sound when they are being used toadjust speed. Pilot Assist is designed to:
smoothly regulate speed. The driver must apply the brakes in situations requiringimmediate braking. For example, whenthere are great differences in speedbetween vehicles or if the vehicle aheadbrakes suddenly. Due to limitations in the camera and radar sensor, braking mayoccur unexpectedly or not at all.
follow a vehicle ahead in the same laneand maintain a time interval to that vehicleset by the driver. If the radar sensor doesnot detect a vehicle ahead, it will insteadmaintain the speed set by the driver. Thiswill also happen if the speed of the vehicleahead exceeds the set speed for your vehi-cle.
The vehicle's position in the traffic
lane
When Pilot Assist helps to steer, it attempts toposition the vehicle halfway between the visi-ble lane marking lines. For a smoother drive, itis a good idea to allow the vehicle to find agood position. The driver can always adjustthe position him/herself by increasing steeringinput. It is important for the driver to makesure the vehicle is positioned safely in the lane. If Pilot Assist does not position the vehicle appropriately in the lane, the driver should turnoff Pilot Assist or switch to Adaptive Cruise Control *.
53
Depending on market, this function can be either standard or optional.

DRIVER SUPPORT
}}
305
Steering assistanceThe color of the steering wheel symbol indicates thecurrent status of steeringassistance: • GREEN indicates that steering assistance is active
• GRAY (as shown in illustration) indicates thatsteering assistance is deactivated.
Pilot Assist's steering assistance is based on monitoring the direction of the vehicle aheadand the traffic lane's side marker lines. Thedriver can override Pilot Assist's steering rec-ommendations at any time and steer inanother direction, e.g. to change lanes or avoidobstacles on the road. If the camera/radar sensor cannot detect the lane's side marker lines or if Pilot Assist isunable for some other reason to clearly inter-pret the lane, Pilot Assist will temporarilydeactivate steering assistance until it can onceagain interpret the lane markings. However,the speed and distance warnings will remainactive. The driver will be alerted by slightvibrations in the steering wheel that the func-tion has been temporarily deactivated.
WARNING
Pilot Assist is deactivated automatically and resumes working without prior notice.
In curves and forks in the roadPilot Assist is designed to interact with the driver. The driver should never wait for steer-ing assistance from Pilot Assist, but insteadshould always be ready to increase his or herown steering efforts, particularly in curves. When the vehicle is approaching an off-ramp or a fork in the road, the driver should steertoward the desired lane so that Pilot Assistcan detect the desired direction of travel.
Hands on the steering wheelPilot Assist only functions if the driver's handsare on the steering wheel. It is also importantfor the driver to always continue to be activeand alert when driving since Pilot Assist isunable to read all situations and may togglebetween off and on without prior warning.
If Pilot Assist detects that thedriver's hands are not on thesteering wheel, the systemwill provide a symbol and atext message in the instru-ment panel to instruct thedriver to actively steer the
vehicle.
If the driver's hands are still detected on the steering wheel after a few seconds havepassed, the instructions to actively steer thevehicle will be repeated, accompanied by anaudible signal. If Pilot Assist still does not detect the driver'shands on the steering wheel after a few moreseconds have passed, the audible signal willbecome intense and the steering function willswitch off. Pilot Assist must then be reactiva- ted by pressing the
button on the steering
wheel.
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.

DRIVER SUPPORT
* Option/accessory.311

Your vehicle's speed goes below 5 km/h (3 mph) and Pilot Assist cannot determineif the vehicle ahead is stationary or if it isanother object, e.g. a speed bump.
Your vehicle's speed goes below 5 km/h(3 mph) and the vehicle ahead turns sothat Pilot Assist no longer has a vehicle tofollow.
Related information

Pilot Assist
* (p. 304)
Selecting and activating Pilot Assist
*
(p. 308)
Deactivating Pilot Assist
* (p. 309)
Pilot Assist
* limitations (p. 312)
Temporarily deactivating steering assistance with Pilot Assist *61
Pilot Assist steering assistance can be tem- porarily deactivated and reactivated withoutprior warning.
When the turn signals are used, Pilot Assist's steering assistance will be temporarily deacti-vated. When the direction indicator is turnedoff, steering assistance is reactivated automat-ically if the lane's edge markings can still bedetected. If Pilot Assist cannot clearly interpret the lane's side marker lines or if the camera/radarsensor is unable for some other reason toclearly interpret the lane, Pilot Assist will tem-porarily deactivate steering assistance. How-ever, the speed and distance warnings willremain active. Steering assistance will resumewhen the side marker lines can once again beinterpreted. In these situations, the driver maybe alerted through slight vibrations in thesteering wheel that steering assistance is tem-porarily deactivated.
Related information
Pilot Assist
* (p. 304)
Selecting and activating Pilot Assist
*
(p. 308)
Deactivating Pilot Assist
* (p. 309)
Pilot Assist
* limitations (p. 312)
60
Electronic Stability Control
61 Depending on market, this function can be either standard or optional.

DRIVER SUPPORT
* Option/accessory.
312
Pilot Assist *62
limitations
Pilot Assist functionality may be reduced in certain situations.
Pilot Assist is a driver support function designed to simplify driving and assist thedriver in many situations. However, the driveris always responsible for maintaining a suita-ble distance to vehicles or objects around itand ensuring that the vehicle is correctly posi-tioned in the traffic lane.
WARNING
In some situations, Pilot Assist may have trouble helping the driver properly or maybe deactivated automatically – we adviseagainst using Pilot Assist in such cases.Examples of such situations include:
the lane markings are unclear, worn, missing, cross each other, or there aremultiple sets of road markings.
the lane division changes, e.g. whenlanes split or merge, and at off-ramps.
when there is road construction andsudden changes to the road surface,e.g. when the lines may no longer markthe correct route.
edges or other lines than lane markingsare present on or near the road, e.g.curbs, joints or repairs to the road sur-face, edges of barriers, roadside edgesor strong shadows.
the lane is narrow or winding.
the lane contains ridges or holes.
weather conditions are poor, e.g. rain,snow or fog or slush or reduced visibil-
ity with poor light conditions, back- lighting, wet road surface, etc.
The driver should also note that Pilot Assist has the following limitations:
High curbs, roadside barriers, tempo- rary obstacles (traffic cones, safety bar-riers, etc.) are not detected. Alterna-tively, they may be detected incorrectlyas lane markings, with a subsequentrisk of contact between the vehicle andsuch obstacles. The driver is responsi-ble for ensuring that the vehicle main-tains a suitable distance from suchobstacles.
The camera and radar sensors do nothave the capacity to detect all oncom-ing objects and obstacles in trafficenvironments, e.g. potholes, stationaryobstacles or objects that completely orpartially block the route.
Pilot Assist does not "see" pedestrians,animals, etc.
The steering assistance is limited inforce, which means that Pilot Assistcannot always help the driver to steerand keep the vehicle within the lane.
In vehicles equipped with Sensus Navigation
*, the function is able to use
62
Depending on market, this function can be either standard or optional.

DRIVER SUPPORT
* Option/accessory.313
information from map data, which could cause variations in performance.
Pilot Assist will be switched off if thespeed-dependent power steeringwheel resistance is working at reducedpower, e.g. during cooling due to over-heating.
WARNING
Pilot Assist should only be used if there are clear lane lines painted on each side of thelane. All other use will increase the risk ofcontact with nearby obstacles that cannotbe detected by the functions.
WARNING
This is not a collision avoidance sys- tem. The driver is always responsibleand must intervene if the system failsto detect a vehicle ahead.
The function does not brake for peopleor animals and does not brake for smallvehicles, such as bikes and motorcy-cles. Similarly, it does not brake for lowtrailers, oncoming, slow-moving or sta-tionary vehicles and objects.
Do not use the function in demandingsituations, such as in city traffic, atintersections, on slippery surfaces,with a lot of water or slush on the road,in heavy rain/snow, in poor visibility, onwinding roads, or on on/off ramps.
The driver can always correct or adjust steer-ing assistance provided by Pilot Assist by turn-ing the steering wheel to the desired position.
Steep roads and/or heavy loadsPilot Assist is primarily intended to be drivenon flat roads. The function may not be able tomaintain the correct time interval to the vehi-cle ahead when driving down steep hills. Thedriver should be extra attentive and preparedto apply the brakes. Do not use Pilot Assist if the vehicle is carryinga heavy load or towing a trailer.
NOTE
Pilot Assist cannot be activated if a trailer, bike carrier or similar is connected to thevehicle electrical system.
Drive mode unavailableThe Off Road drive mode cannot be selected
when Pilot Assist is activated.
NOTE
The function uses the vehicle's camera and radar sensor, which has certain generallimitations.
Related information
Pilot Assist
* (p. 304)
Camera/radar sensor limitations (p. 390)
Speed-dependent steering wheel resis- tance (p. 278)
Drive modes
* (p. 419)

DRIVER SUPPORT
* Option/accessory.
314
Pilot Assist *63
symbols and
messages
A number of symbols and messages relating to Pilot Assist may be displayed in the instru- ment panel and/or the head-up display *.
Symbol Message Meaning
Gray steering wheel symbol Indicates that steering assistance is deactivated. When Pilot Assist is providing steer-
ing assistance, the steering wheel is green.
Symbol for hands on the steering wheel The system cannot detect the driver's hands on the steering wheel. Place your handson the steering wheel and actively steer the vehicle.
Windscreen sensor Sensor blocked, see Owner's man- ualClean the windshield in front of the camera and radar sensors.
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.
63 Depending on market, this function can be either standard or optional.