trailer VOLVO S90 2018 Owner´s Manual

DRIVER SUPPORT
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•
signs partially or fully covered by frost, snow and/or dirt
• digital road maps 101
that are outdated, incor-
rect or do not contain speed information 102
.
NOTE
Certain types of bike carriers that are con- nected to the trailer socket may be interpre-ted as a connected trailer by the RSI function.In such cases, the instrument panel may indi-cate incorrect speed information.
NOTE
The function uses the vehicle's camera unit, which has some general limitations – see thesection "Camera unit limitations".
Related information
• Road Sign Information
* (p. 346)
Driver Alert Control
The Driver Alert Control (DAC) function is designed to help capture the driver becomeaware of erratic behavior, e.g. if the driver is dis-tracted or showing signs of fatigue.
The objective of DAC is to detect slowly deterio- rating driving behavior and is primarily intended tobe used on major roads. The function is notintended for use in city traffic. DAC is activated when the vehicle's speed exceeds 65 km/h (40 mph) and remains activeas long as speeds are above 60 km/h (37 mph).
A camera monitors the traffic lane's marker lines and compares the direction of the road with thedriver's movements of the steering wheel.
If the driving behavior becomes noticeably erratic, the driver willbe alerted by this symbol in theinstrument panel and the mes- sage
Time for a break
soon?.
If driving behavior does not improve but instead becomes even more erratic, the driver will bealerted by the same symbol in the instrument panel, an audible signal and the message
Time
for a break.
If the Rest Stop Guidance function is activated
in Sensus Navigation * when the Time for a
break warning is given, suggestions will also be
provided for suitable places to take a break.
101 Vehicles equipped with Sensus Navigation.
102 Map data and speed information is not available for all areas.

DRIVER SUPPORT
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371
Park Assist front, rear and sides
Park Assist has different parameters depending on which part of the vehicle is approaching anobstacle.
Back
Note: This illustration is general and details may vary depending on model.
The rear sensors will be activated if the vehicle begins rolling backward or if reverse gear isengaged. The distance monitored begins approx. 1.5 meters (5 feet) behind the vehicle. The rear sensors will be automatically deactivated if the vehicle is backing up with a trailer attached.
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.
Side sensors
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 begins approx. 30 cm (1 ft) from the sides. The audible signal for obsta-cles along the sides of the vehicle is emittedfrom the side speakers.
Front camera
Note: This illustration is general and details may vary depending on model.
Park Assist's front sensors are automatically acti- vated when the engine is started. The front sen-sors are active at speeds below 10 km/h(6 mph). The distance monitored begins approx. 80 cm (2.5 ft) in front of the vehicle.
NOTE
The Parking Assist system is deactivated when the parking brake is applied or when P
is selected on vehicles with automatic trans- mission.

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CAUTION
When installing auxiliary lights: Make sure these do not obscure the sensors – the auxili-ary lights could be perceived as an obstacle.
Related information
• Park Assist
* (p. 370)
Activating/deactivating Park Assist
The Park Assist Pilot function can be activated/ deactivated.
On/OffPark 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 shows the status of the function: GREEN (on) or GRAY (off).
In vehicles equipped with Park Assist Camera,Park Assist can also be activated/deactivatedfrom the relevant camera view.
Related information
• Park Assist
* (p. 370)
Park Assist limitations
Park Assist may not be able to detect all condi- tions in all situations and functionality may there-fore be limited in certain cases.
The driver should be aware of the following limi- tations for Park Assist:
WARNING
Be extra cautious when reversing if this symbol isshown when a trailer, bikecarrier or similar is attachedand electrically connectedto the vehicle. The symbol indicates that
the rear parking assist sensors are deacti-
vated and will not warn of any obstacles.

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CAUTION
Objects such as chains, thin and glossy poles or low obstacles may end up in the "signalshadow" and then go temporarily undetectedby the sensors – the pulsating tone may thenunexpectedly stop instead of becoming aconstant tone as expected. The sensors cannot detect high objects, such as protruding ramps.
• In such situations, pay extra attention andmaneuver/drive the vehicle very slowly orstop the current parking maneuver –there may be a high risk of damage tothe vehicle or other objects since infor-mation from the sensors is not alwaysreliable in such situations.
CAUTION
In some circumstances, the Park Assist Sys- tem may produce false warnings due to exter-nal sound sources with the same ultrasonicfrequencies as those the system works with. Examples of such sources are horns, wet tires on asphalt, pneumatic brakes, exhaust noisefrom motorcycles, etc.
NOTE
When a trailer hitch is configured with the vehicle electrical system, the trailer hitch pro-trusion is included when the function meas-ures the distance to objects behind the vehi-cle.
Related information
•
Park Assist
* (p. 370)
Recommended maintenance forPark Assist
For Park Assist to function optimally, its sensors must be cleaned regularly with water and carwashing detergent.
Location of the Park Assist sensors 111
.
NOTE
Dirt, ice and snow covering the sensors could cause false warnings, reduced function, or nofunction.
Related information
• Park Assist
* (p. 370)
111
Note: This illustration is general and details may vary depending on model.

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Side cameras
The side cameras116
are located in the rearview mirrors.
The side cameras can show views along each side of the vehicle.
Related information
• Park Assist Camera
* (p. 375)
Park Assist Camera trajectory lines
The Park Assist Camera uses trajectory lines and fields on the screen to indicate the vehicle'sposition in relation to its immediate surround-ings.
Example 117
of trajectory lines.
The trajectory lines show the anticipated trajec- tory for the vehicle's outermost dimensions basedon the current position of the steering wheel to help simplify parallel parking, backing into tightspaces or attaching a trailer. The lines on the screen are projected as if they were painted lines on the ground behind thevehicle and are directly affected by the way inwhich the steering wheel is turned. This enablesthe driver to see path the vehicle will take, even ifhe/she turns the steering wheel. These lines also indicate the outermost limits that any object (towbar, rearview mirrors, corners ofthe body, etc.) extends out from the vehicle.
NOTE
•
When reversing with a trailer that is not electrically connected to the vehicle, thescreen guide lines show the path the vehicle
will take – not the trailer.
• The screen does not show guide lines when a trailer is electrically connected tothe vehicle's electrical system.
• Guide lines are not shown when zoomingin.
116
Note: This illustration is general and details may vary depending on model.
117 The illustration is generic - details may vary according to vehicle model.

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CAUTION
• Bear in mind that when the rearward camera view is selected, the screen onlyshows the area behind the vehicle – payattention to the sides and front of thevehicle when steering while reversing.
• The same applies to the reverse – payattention to what is happening with therear parts of the vehicle when the frontcamera view is selected.
• Note that the guide lines show the
short-
est path – pay extra attention to ensure
that the vehicle sides do not come incontact with/travel over anything whensteering while driving forward or that thevehicle front moves toward/over anythingwhen steering while reversing.
Trajectory lines in 360° view *
360° view with trajectory lines117
.
In the 360° view, trajectory lines are shown behind, in front of, or to the sides of the vehicle,depending on the direction of travel.
• When driving forward: Front lines
• When backing up: Side lines and rear lines.
When the front or rear camera is selected, thetrajectory lines will be shown regardless of thevehicle's direction of travel. With a side camera selected, the trajectory lines will only be shown if the vehicle is backing up.
Trajectory lines for a towbar *
Towbar with trajectory line117
.
Towbar - activate trajectory lines for towbar.
Zoom - zoom in/out.
The camera can help make hitching a trailer eas- ier by showing an anticipated trajectory line for the towbar's path toward the trailer.
117 The illustration is generic - details may vary according to vehicle model.

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Starting the Park Assist Camera
The Park Assist Camera starts automatically when reverse gear is engaged or can be startedmanually using one of the center display's func-tion buttons.
Camera view when backing upWhen reverse gear is engaged, the screen shows the rear view 119
.
Camera view when manually starting
the camera
Start the Park Assist Camera using this button in the centerdisplay's Function view. The screen will first show the most recently used cameraview. However, each time the
engine is started, the previous side view will bereplaced by the 360° view and a previously dis-played zoomed-in rear view will be replaced bythe regular rear view.
Automatically deactivating the cameraFront view switches off when the vehicle's speed reaches 25 km/h (16 mph) to help avoid dis-tracting the driver. It will be automatically reactiva-ted if the vehicle's speed falls below 22 km/h(14 mph) within 1 minute as long as the vehicle'sspeed has not exceeded 50 km/h (31 mph). Other camera views switch off at 15 km/h(9 mph) and are not reactivated.
Related information
•
Park Assist Camera
* (p. 375)
Park Assist Camera limitations
The Park Assist Camera may not be able to detect 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 when reversing if this symbol isshown when a trailer, bikecarrier or similar is attachedand electrically connectedto the vehicle. The symbol indicates that
the rear parking assist sensors are deacti-
vated and will not warn of any obstacles.
NOTE
A bike carrier and other accessories mounted on the rear of the vehicle can obscure thecamera's view.
119
In Canada, it is also possible to select the 360° view.

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Parallel parking
Overview of parallel parking.
The PAP function parks the vehicle using the fol- lowing steps:
1. The system searches for and measures
potential parking spaces.
2. The vehicle is steered while it is backing into the parking space.
3. The vehicle's position in the space is adjusted by driving forward/backward.
The
Park Out function can be used to receive
assistance from PAP while pulling out of a park- ing space. See the heading "Pulling out of aparking space" under "Parking with Park AssistPilot".
Perpendicular parking
Perpendicular parking overview.
The PAP function parks the vehicle using the fol- lowing steps:
1. The system searches for and measures potential parking spaces.
2. The vehicle is steered while it is backing into the space and its position is adjusted by driv-ing forward/backward.
NOTE
The PAP function Park Out cannot help the
vehicle leave a perpendicular parking space – the function should only be used for parallelparking.
Related information
• Park Assist Pilot
* (p. 384)
Parking with Park Assist Pilot Park Assist Pilot (PAP 122
) helps the driver park
using three different steps. The function can also help the driver pull out of a parking space.
NOTE
The PAP function measures the space and steers the vehicle – the driver's role is to:
• keep close watch of the area around thevehicle
• follow the instructions on the center dis-play
• change gears (reverse/forward) – a"ping" sound indicates when the drivershould change gears
• regulate and maintain a safe speed
• apply the brakes and stop.
Information about the actions required by the driver are provided in the center display usingsymbols, graphics and/or text. PAP can be activated if the following criteria have been met after the engine is started: •
No trailer is hitched to the vehicle
• Your vehicle's speed is lower than 30 km/h (20 mph).

STARTING AND DRIVING
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Parking on a hill
Always use the parking brake when parking on a hill.
WARNING
Always apply the parking brake when parking on an incline. Selecting a gear or putting the automatic transmission in P may not be suffi-
cient to keep the vehicle stationary in all sit- uations.
If the vehicle is pointing uphill: • Turn the front wheels so they are pointing away from
the curb.
If the vehicle is pointing downhill:
• Turn the front wheels so they are pointingtoward
the curb.
Heavy load uphill
Heavy loads, such as a trailer, could cause the vehicle to roll backward when the parking brakeis released automatically on steep uphill gradi-ents. To help avoid this, pull the control upwardwhile you are driving away. Release the controlwhen the vehicle gains traction.
Related information
•Activating and deactivating the parking brake(p. 402)
Parking brake malfunction
If you are unable to deactivate or activate the parking brake after several attempts, contact anauthorized Volvo workshop.
A audible warning signal will sound if the parking brake is applied while the vehicle is being driven. If the vehicle must be parked before the problem is rectified, turn the wheels as when parking on an incline and put the gear selector in P.
Low battery charge levelIf the battery charge level is too low, it will not be possible to apply or release the parking brake.Connect an auxiliary battery to the vehicle if thebattery is discharged.
Replacing brake padsDue to the design of the electric parking brake,the rear brake pads must be replaced by a work-shop. An authorized Volvo workshop is recom-mended.
Symbols in the instrument panel
SymbolMeaning
A
B A flashing symbol indicates that a fault has been detected. See themessage in the instrument panel.
A
B
Fault in the brake system. See the message in the instrument panel.
Information message in the instru- ment panel.
A
Canadian models.
B US models.

STARTING AND DRIVING
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Conditions for the Start/Stopfunction Certain conditions must be met for Start/Stop to function.
If any condition is not met, this will be indicated in the instrument panel.
The engine does not auto-stopThe engine will not auto-stop if: •the vehicle has not reached a speed of ca 10 km/h (6 mph) after starting.
• after several auto-stops, the speed mustagain exceed approximately ca 10 km/h(6 mph) before the next auto-stop.
• the driver's seat belt is unbuckled.
• the start battery's charge is below the mini-mum level.
• the engine is not running at its normal oper-ating temperature.
• the ambient temperature is under approxi-mately -5 °C (23 °F) or over approximately30 °C (86 °F).
• windshield heating is activated.
• the climate system settings and the actualclimate in the passenger compartment differ.
• the vehicle is backing up.
• the start battery's temperature is above orbelow the permitted limits.
• the driver is turning the steering wheel hard. •
the road gradient is very steep.
• the hood is open.
• driving at high altitude and the engine hasnot reached its normal operating tempera-ture.
• ABS has been activated.
• hard braking (even if the ABS system hasnot been activated).
• many starts during a short period of timehave triggered the starter motor's overheat-ing protection.
• a trailer's electrical system is connected tothe vehicle's electrical system.
• the transmission is not running at its normaloperating temperature.
• The gear selector is in mode
M (±).
The engine does not auto-startThe engine will not auto-start after an auto-stopif: • the driver is not wearing a seat belt, the gear selector is in the
P position and the driver's
door is open. The engine must be started normally.
The engine auto-starts while the brake
pedal is depressed
In the following situations, the engine will auto-start even if the brake pedal is depressed: •
High levels of condensation on the inside ofthe windows.
• the climate system settings and the actualclimate in the passenger compartment differ.
• Electrical current consumption is temporarilyhigh or the start battery's charge is below theminimum level.
• The brake pedal is pumped repeatedly.
• The hood is open.
• The vehicle begins to roll or increases speedslightly if the engine auto-stopped before thevehicle was at a standstill.
• The driver's seat belt is unbuckled with the gear selector in the
D or N positions.
• The gear selector is moved from
D to R or M
( ± ).
• The driver's door is opened with the gearselector in
D. An audible signal and a text
message informs the driver that the ignition is on.
WARNING
Do not open the hood if the engine has auto- stopped. Turn off the engine by switching offthe ignition before lifting the hood.