brake sensor VOLVO S90 TWIN ENGINE 2019 Owner's Manual

DRIVER SUPPORT
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383
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.

DRIVER SUPPORT
* Option/accessory.385
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 whenreversing if this symbol isshown when a trailer, bikecarrier or similar is attachedand electrically connectedto the vehicle.
The symbol indicates thatthe rear parking assist sensors are deacti-vated and will not warn of any obstacles.
CAUTION
Objects such as chains, thin and glossy polesor 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, suchas 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 tireson asphalt, pneumatic brakes, exhaust noisefrom motorcycles, etc.
NOTE
When a trailer hitch is configured with thevehicle 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. 382)

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DRIVER SUPPORT
404

The parking sequence is cancelled
A parking sequence will be cancelled if:
the driver moves the steering wheel
the vehicle's speed exceeds 7 km/h (4 mph)
the driver taps Cancel in the center display
when the anti-lock brakes or the Electronicstability control are engaged - e.g. when awheel loses grip on a slippery road
when the power steering works at reducedpower - e.g. during cooling due to overheat-ing (see section "Speed-dependent steeringforce").
A message in the center display will explain whythe parking sequence was cancelled.

CAUTION
Under certain circumstances, PAP may not beable to find parking spaces – one reason maybe that the sensors are disrupted by externalsound sources that emit the same ultrasonicfrequencies that the system works with.
Examples of such sources include horns, wettires on asphalt, pneumatic brakes, exhaustnoise from motorcycles, etc.
NOTE
Dirt, ice and snow covering the sensorsreduce their function and can make measure-ment impossible.

Driver responsibility
The driver should keep in mind that PAP is aparking aid ‒ not an infallible fully automatic sys-tem. The driver must always be prepared to takecontrol and cancel a parking sequence if neces-sary.
There are a number of things to keep in mindwhen parking, including:
The driver is always responsible for determin-ing if the space suggested by PAP is suita-ble for parking.
Do not use PAP when using snow chains ora temporary spare tire.
Do not use PAP if there are any objects pro-truding from the vehicle.
Heavy rain or snowfall may inhibit PAP's abil-ity to accurately measure a parking space.
While searching and measuring the parkingspace, PAP may be unable to detect objectslocated far into the space.
PAP may not suggest parking spaces onnarrow streets if it does not detect sufficientspace for maneuvering the vehicle.
Use approved tires121 inflated to the correcttire pressure because this affects PAP's abil-ity to provide parking assistance.
PAP's function is based on the way the vehi-cles are parked behind and in front of yourparking space. If they are, for example,parked too close to the curb, there is a riskthat your vehicle's tires or wheel rims couldbe damaged by the curb during the parkingprocedure.
Perpendicular parking spaces may not bedetected or may be suggested unnecessarilyif a parked vehicle is sticking out more thanother parked vehicles.
PAP is intended to provide parking assis-tance on straight streets, not sections ofstreet with sharp curves or bends. Alwaysmake sure that your vehicle is parallel to rel-evant parking spaces when PAP is measur-ing the parking space.

CAUTION
Switching to another approved wheel and/ortire dimension could change the tire circum-ference, which would then require the PAPsystem to be updated. Consult a workshop –an authorized Volvo workshop is recom-mended.
121"Approved tires" refers to tires of the same type and make as the vehicle's original, factory-installed tires.

STARTING AND DRIVING
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431
Brakes
The brake pedal is used to apply the vehicle'sregular brakes, which are part of the brake sys-tem.
The vehicle is equipped with two brake circuits. Ifone brake circuit is damaged, the brake pedal willgo down further when depressed. More pressurewill then be required from the driver for normalbraking effect.

WARNING
The power brakes only work when the electricmotor or combustion engine is running.
If the brake pedal is used when the engine isswitched off, greater pressure must be applied tobrake the vehicle.
In very hilly areas or when driving with a heavyload, gear position B can be used to augment thebrakes with engine braking.

Anti-lock brakes
The vehicle is equipped with an Anti-lock BrakingSystem (ABS), which helps prevent the wheelsfrom locking and helps maintain steering controlwhen braking. Vibrations may be felt from thebrake pedal when ABS is operating, which is nor-mal.
After the vehicle is started, a brief test of theABS system is automatically performed when the
driver releases the brake pedal. An additionalautomatic test of the system may be performedwhen the vehicle is traveling at a low speed. Dur-ing the test, the brake pedal may feel as though itis pulsating.
Light braking charges the hybrid battery
When the brakes are applied lightly, the electricmotor braking function is used. This converts thevehicle's kinetic energy into electrical energy,which is used to charge the hybrid battery. Whenthe battery is being charged with the electricmotor braking function, this will be indicated inthe instrument panel.
When the battery is being charged with the electricmotor braking function, this will be indicated in theinstrument panel.
This function is active at speeds in the range of150-5 km/h (93-3 mph). When braking atspeeds outside of this range, or during harderbraking, the hydraulic braking system is used to
augment braking. This is indicated in the instru-ment panel with the pointer down in the red area.
Symbols in the instrument panel
Symbol Meaning
A
B
Check the brake fluid level. If thelevel is low, fill brake fluid andcheck to determine the reason forthe loss of brake fluid.
A
B
Fault in pedal sensor.

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MAINTENANCE AND SERVICE
* Option/accessory.610
FunctionAmpere
12 V outlet in trunk/cargocompartment*
USB ports for iPad holders
15
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––
––
––
Heated windshield*, left sideShunt
Heated windshield*, left side40
Headlight washers*25
Windshield washer25
––
Horn20
Alarm siren*5
Brake system control module(valves, parking brake)40
Wipers30
––
FunctionAmpere
Heated windshield*, right side40
––
Brake system control module(ABS pump)40
––
Heated windshield*, right sideShunt
Fed when ignition is on:Engine control module; trans-mission components, electricalpower steering, central electri-cal module
5
Exterior vehicle sound (certainmarkets)5
Right-side headlight7.5
Right-side headlight, some
models with LEDC15
––
––
––
Airbags5
FunctionAmpere
Left-side headlight7.5
Left-side headlight, some
models with LEDC15
Accelerator pedal sensor 5
Transmission control module;gear selector control module15
Engine control module5
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––
––
––
Engine control module; actua-tor; throttle unit; turbo-chargervalve
20
Solenoids; valve; engine cool-ing system thermostat10
Vacuum regulators; valve 7.5
Spoiler shutter control module;radiator shutter control mod-ule
5
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MAINTENANCE AND SERVICE
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* Option/accessory.613
Fuse pliers are provided on the inside of the fusebox cover to assist in removing and insertingfuses.
There are also spaces for several extra fuses inthe distribution box in the engine compart-ment.

Positions
Fuses 1, 3-21, 23-36, 39-53 and 55-59 are"Micro" fuses.
Fuses 2-22, 37-38 and 54 are "MCase"fuses and should only be replaced by a work-
shop17.
FunctionAmpere
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––
Movement sensor*5
Instrument panel5
Center console buttons5
Sun sensor5
FunctionAmpere
Sensus control module20
––
Steering wheel module5
Module for start knob andparking brake controls5
Heated steering wheel* mod-ule15
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––
––
––
Climate system control mod-ule10
––
Data link connector OBD-II 10
Center display5
Climate system blower module(front)40
FunctionAmpere
USB HUB5
Instrument lighting; Interiorlighting; Rearview mirror auto-dim function*; Rain and lightsensors*; Rear tunnel consolekeypad, rear seat*; Power frontseats*; Rear door control pan-els; Climate system blowermodule left/right
7.5
Control module for driver sup-port functions5
Panoramic roof with sun cur-tain*20
Head-up display*5
Passenger compartment light-ing5
––
Ceiling console display (seatbelt reminder/front passengerside airbag indicator)
5
––
Humidity sensor5
17An authorized Volvo workshop is recommended.

MAINTENANCE AND SERVICE
627
Automatic car washes
The vehicle should be washed as soon as itbecomes dirty. This makes the vehicle easier toclean because dirt does not attach as strongly. Italso reduces the risk of scratches and keeps thevehicle looking new.
An automatic car wash is a fast and easy way tokeep your vehicle clean, but it does not reach allareas of the vehicle. For best results, Volvo rec-ommends hand washing your vehicle or supple-menting automatic car washes with a hand wash.

NOTE
Volvo recommends not washing the vehicle inan automatic car wash during the first fewmonths; the paintwork on new vehicles takessome time to fully harden.

CAUTION
Before driving the vehicle into a car wash,deactivate the Automatic Braking when Sta-tionary and Automatic Parking Brake Applica-tion functions. If the functions are not deacti-vated, the brake system will seize when thevehicle is stationary and the vehicle will not beable to roll.
CAUTION
For automatic car washes in which the vehicleis pulled forward on rolling wheels:
1. Before washing the vehicle, make surethat the automatic rain sensor is deacti-vated. If it is not deactivated and inadver-tently starts, the wiper arms could bedamaged.
2.To help prevent damage from the auto-matic car wash machinery, make surethat the door mirrors are folded in, anten-nas retracted or removed, and any auxili-ary lights secured.
3. Drive into the automatic car wash.
4. Turn off the "Automatic Braking when
Stationary" function using the buttonin the tunnel console.
5. Turn off the "Automatic Parking BrakeApplication" function in the center dis-play's Top view.
6.Turn off the engine by turning the startknob in the tunnel console clockwise.Hold the knob in position for at least2 seconds.
The vehicle is now ready for the automatic carwash.
CAUTION
The system will automatically change to Pmode if the above steps are not followed. In Pmode, the wheels are locked, which theyshould not be when the vehicle is beingwashed in a car wash.

Related information
Cleaning the exterior (p. 624)
Polishing and waxing (p. 625)
Hand washing (p. 625)
High-pressure washing (p. 628)
Cleaning the wiper blades (p. 628)
Cleaning exterior plastic, rubber and trimcomponents (p. 629)
Cleaning rims (p. 630)
Corrosion protection (p. 630)

INDEX
651
1, 2, 3 ...
4WD444
A
ABS
anti-lock brakes431
AC (Air conditioning)223
ACC - Adaptive Cruise Control 292, 295,
296, 297, 298, 299, 301, 302, 303, 304,
305, 306
Accessories and extra equipment 35
installation36
Accessory installation warning 36, 37
Active Bending Lights155
Adapting driving characteristics 270, 446
Adaptive Cruise Control 292, 295, 296,
297, 298, 299, 301, 302, 303, 304, 305, 306
change cruise control functionality 305
function292
manage speed296, 297
pass301, 302
radar sensor324
set time interval298, 299
troubleshooting304
Adjusting the steering wheel193
Airbag52
activation/deactivation56
driver's side53
passenger side53, 56
Air bag, see Airbag52
Air conditioning223
Air conditioning, fluid
volume and grade648
Air distribution201
air vents201, 202
changing202
defrosting215
recirculation214
table showing options204
Air quality198, 200
allergy and asthma199
passenger compartment filter201
Air recirculation214
Alarm266
deactivating267
Allergy and asthma-inducing substances 199
All Wheel Drive, AWD444
All Wheel Drive (AWD)444
All Wheel Drive (four-wheel drive) 444
Android Auto512, 514
Antenna
location255
Apple CarPlay509, 511
Approach lighting157
Apps480
Assistance at risk of collision372, 373,
374, 375, 376, 377, 378, 379, 381
Audio and media478
Audio system
HD digital radio490
SiriusXM® Satellite radio 490, 491, 493
Auto-climate214
Auto hold437
Auto-hold brakes437
activate and deactivate438
after collision439
Automatic car wash627
Automatic high beam153
Automatic locking260
Automatic relocking240, 253
Automatic Speed Limiter 279, 281, 282, 283
Automatic transmission440
kickdown444
oil647
Auxiliary heater232
INDEX

INDEX
652
B
Backrest
front seat, adjusting 180, 181, 184,
185, 186, 187
rear seat, adjusting192
rear seat, folding189
Battery
Hybrid605
jump-start466
Maintenance601
start601
symbols on the battery606
warning symbols606
BLIS347, 348, 349, 350
Blower
adjusting219, 220
air distribution202
air vents202
Bluetooth
connect506
connecting vehicle to Internet 525
phone514
settings523
Book service and repair589
Booster cushions71
Brake assist
after collision439
Brake fluid
grade647
Brake functions430
Brake light156
Brake position440
Brakes431
anti-lock brakes, ABS431
automatic when stationary437
Brake Assist System, BAS432
brake lights156
brake system430
emergency brake lights156
handbrake434
Maintenance433
on salted roads433
on wet roads433
brake system
fluid647
C
Camera sensor343
Camera unit329, 333
Capacity weight570, 643
Cargo compartment579
attachment points582
Car wash624, 625, 627, 628, 629, 630
Catalytic converter464
recovery468
CD player504
Cell phone, see Phone 515
Center console 575
Center display
change appearance 127
cleaning 619
climate controls 207
Function view 118
keyboard 122
messages 136, 137
operation 108, 111, 115, 120
overview 105
settings 128, 129
switch off and change volume 127
symbols in status bar 120
views 111
Central locking 256
Change of owner 130
Changing a wheel 556
Charge
vehicle function 456
Charge level
vehicle function 456

INDEX
658
low beams 151
position lights 150
rear fog light 155
settings 149
Turn signals 154
Lighting, replacing bulbs 600
Limp home 440
Load anchoring eyelets
cargo compartment 582
Load anchoring hooks 581
Load carriers 581
Load index 546
Loading
general 580
load anchoring eyelets 582
long load 580
Lock indication 236
setting 237
Locking/unlocking
trunk lid 241, 255
Locking wheel bolts 557
Locks
Locking 240
unlocking 240
Long-term storage 424
Low battery charge level
start battery 466
Low beams151
Low oil level598
M
Maintained climate comfort229
start/stop229
Maintenance584
corrosion protection630
Max. axle weight643
Max. roof load643
Media player500, 502
compatible file formats507, 508
voice control144
Messages and symbols
Adaptive Cruise Control306
Collision warner with auto-brake345
Messages in BLIS351
Messages in display101, 136
handling102, 136
saved103, 137
Mileage85
electric motor455
Misting
condensation in headlights 624, 627
Mood lighting159
O
Occupant safety43
Occupant weight sensor56
Octane rating462
Oil, see also Engine oil646
On-board diagnostics584
On-board Diagnostic socket37
Option/accessory21
Outside temperature gauge90
Overheating465
Owner's information16
OWNER'S MANUAL21
in cellular phone20
in the center display17, 18
P
Paddle at steering wheel193
Paint
color code632
paint damage and touch-up631, 632
Panoramic roof
opening and closing171
pinch protection162