2018 VOLVO XC90 brake sensor

||
DRIVER SUPPORT
* Option/accessory.
382
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. 379)
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 115
.
NOTE
Dirt, ice and snow covering the sensors could cause false warnings, reduced function, or nofunction.
Related information
• Park Assist
* (p. 379)
115
Note: This illustration is general and details may vary depending on model.

DRIVER SUPPORT
* Option/accessory.
398
Park Assist Pilot * limitations
Park Assist Pilot PAP 127
may not be able to
detect all conditions in all situations and func- tionality may therefore be limited.WARNING
• The PAP function is supplementary driver support intended to facilitate driving andhelp make it safer – it cannot handle allsituations in all traffic, weather and roadconditions.
• Pay particular attention to people andanimals near the vehicle.
• Bear in mind that the front end of thevehicle may swing out towards oncomingtraffic during the parking maneuver.
• Objects situated higher than the detec-tion area of the sensors are not includedwhen the parking maneuver is calculated,which could cause PAP to swing into theparking space too early. Such parkingspaces should be avoided for this reason.
• PAP is not a substitute for the driver'sattention and judgment. The driver isalways responsible for ensuring the vehi-cle is driven in a safe manner, at theappropriate speed, with an appropriatedistance to other vehicles, and in accord-ance with current traffic rules and regula-tions.
The driver should be aware of the following limi-tations for Park Assist Pilot:
The parking sequence is cancelledA 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 Electronic stability control are engaged - e.g. when awheel loses grip on a slippery road
• when the power steering works at reduced power - 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 be able 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, wet tires on asphalt, pneumatic brakes, exhaustnoise from motorcycles, etc.
127 Park Assist Pilot

MAINTENANCE AND SERVICE
* Option/accessory.607
FunctionAA
– –
Heated windshield *, left side Shunt
Heated windshield
*, left side 40
Headlight washers
*25
Windshield washer 25
Transmission control module 15
Horn 20
Alarm siren
* 5
Brake system control module (valves, parking brake) 40
Wipers 30
Rear window washer 25
Heated windshield
*, right side 40
20
Brake system control module (ABS pump) 40
– –
Heated windshield
*, right side Shunt
FunctionAA
Fed when ignition is on: engine control module, transmissioncomponents, electrical powersteering, central electrical mod-ule, brake system control mod-ule 5
– –
Right-side headlight 7.5 Right-side headlight, some mod- els with LED
B 15
– –
– –
Battery connection control mod- ule 5
Airbags 5
Left-side headlight 7.5 Left-side headlight, some mod- els with LED
B 15
Accelerator pedal sensor 5
A
Ampere
B LED (Light Emitting Diode)
Related information
• Fuses and fuseboxes (p. 603)
• Replacing fuses (p. 604)

MAINTENANCE AND SERVICE
}}
* Option/accessory.609
Fuse pliers are provided on the inside of the fuse box cover to assist in removing and insertingfuses. There are also spaces for several extra fuses in the
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- shop 22
.
FunctionAA
– –
Electrical outlet in tunnel console between rear seats * 30
– –
Movement sensor
* 5
Media player 5
Instrument panel 5
Center console buttons 5
Sun sensor 5
FunctionAA
– –
– –
Steering wheel module 5
Module for start knob and parking brake controls 5
Heated steering wheel
* module 15
– –
– –
– –
– –
Climate system control module 10
– –
Data link connector OBD-II 10
Center display 5
Climate system blower module (front) 40
USB HUB 5
FunctionAA
Instrument lighting; Interior lighting; Rearview mirror auto-dim function
*;
Rain and light sensors *; Rear tun-
nel console keypad, rear seat *;
Power front seats *; Rear door con-
trol panels; Climate system blower module left/right 7.5
Control module for driver support functions
5
Panoramic roof with sun curtain
*20
Head-up display
* 5
Passenger compartment lighting 5
– –
Ceiling console display (seat belt reminder/front passenger side air-bag indicator) 5
– –
Humidity sensor 5
Door module in right-side rear door 20
Fuses in the trunk/cargo compart- ment
10
22
An authorized Volvo workshop is recommended.

MAINTENANCE AND SERVICE
623
Automatic car washes The vehicle should be washed as soon as it becomes 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.
Automatic car washesAn automatic car wash is a fast and easy way to keep 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 in an 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 vehicle is 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 switch in the tunnel console.
5. Turn off the "Automatic Parking Brake Application" function in the center dis-play's Top view.
6. Turn off the engine by turning the start knob in the tunnel console clockwise.Hold the knob in position for at least2 seconds.
The vehicle is now ready for the automatic carwash.
Related information
• Cleaning the exterior (p. 620)
• Polishing and waxing (p. 621)
• Hand washing (p. 621)
• High-pressure washing (p. 624)
• Cleaning the wiper blades (p. 624)
• Cleaning exterior plastic, rubber and trim components (p. 625)
• Cleaning rims (p. 626)
• Corrosion protection (p. 626)

INDEX
649
1, 2, 3 ...
4WD 423
A
ABSanti-lock brakes 409
AC (Air conditioning) 233
ACC - Adaptive Cruise Control 293, 296, 297, 298, 299, 300, 302, 303, 304, 305, 307
Accessories and extra equipment 35 installation 36
Accessory installation warning 36
Active Bending Lights 161
Adapting driving characteristics 270, 423
Adaptive Cruise Control 293, 296, 297, 298, 299, 300, 302, 303, 304, 305, 307
change cruise control functionality 305
function 293
manage speed 297, 298
pass 302, 303
radar sensor 324
set time interval 299, 300
troubleshooting 305
Adjusting the steering wheel 203
Airbag 52 activation/deactivation 56
driver's side 53
passenger side 53, 56
Air bag, see Airbag 52
Air conditioning 233Air conditioning, fluid volume and grade 646
Air distribution 212 air vents 212, 213
changing 212
defrosting 225
recirculation 224
table showing options 214
Air quality 209, 210 allergy and asthma 210
passenger compartment filter 211
Air recirculation 224
Alarm 266 deactivating 267
Allergy and asthma-inducing substances 210
All Wheel Drive, AWD 423
All Wheel Drive (AWD) 423
All Wheel Drive (four-wheel drive) 423
Android Auto 496, 498 Antenna location 255Apple CarPlay 493, 495
Approach lighting 164
Apps 465
Assistance at risk of collision 370, 371, 372, 373, 374, 375, 376, 378
Audio and media 464Audio system HD digital radio 475 SiriusXM ® Satellite radio 476, 477, 478
Auto-climate 223
Auto hold 415
Auto-hold brakes 415 activate and deactivate 416
after collision 417
Automatic car wash 623 Automatic engine stop auto-stop 428
Automatic high beam 159
Automatic locking 259
Automatic relocking 239, 252
Automatic Speed Limiter 280, 282, 283
Automatic transmission 418 kickdown 422
oil 645
Trailer 449
INDEX

INDEX
650
B
Backrestfront seat, adjusting 188, 189, 192, 193 , 194
rear seat, adjusting 200, 201
rear seat, folding 196, 201, 202
Battery jump-start 447
Maintenance 598
start 598
support 601
symbols on the battery 602
warning symbols 602
BLIS 346, 347, 348, 349 Blower adjusting 228, 229
air distribution 212
air vents 213
Bluetooth connect 491
connecting vehicle to Internet 509
phone 498
settings 507
Book service and repair 580
Booster cushions 71 Brake assist after collision 417
Brake fluid
grade 645
Brake functions 408
Brake light 163
Brakes 409 anti-lock brakes, ABS 409
automatic when stationary 415
Brake Assist System, BAS 410
brake lights 163
brake system 408
emergency brake lights 163
handbrake 411
Maintenance 411
on salted roads 411
on wet roads 410
brake system fluid 645
C
Camera sensor 342
Camera unit 329
Capacity weight 556, 641
Cargo compartment 564
attachment points 567
cargo net 571
electrical outlet 560, 562
Lighting 166
Cargo compartment cover 567, 568
cargo net 571
Car wash 620, 621, 623, 624, 625, 626
Catalytic converter 445 recovery 453
CD player 489
Cell phone, see Phone 499
Center console 559Center display change appearance 133
cleaning 615
climate controls 217
Function view 124
keyboard 128
messages 142, 143, 144
operation 114, 117, 121, 126
overview 111
settings 134, 135, 136
switch off and change volume 133
symbols in status bar 126
views 117
Central locking 255
Change of owner 136
Changing a wheel 542
Checking engine oil level 589

INDEX
656Lighting, replacing bulbs 591
daytime running lights/front parking
lights 596
front turn signals 597
high beams 595
low beams 595
remove plastic cover 593
removing rectangular cover 593
Limp home 417 Load anchoring eyelets cargo compartment 567
Load anchoring hooks 566
Load carriers 566
Load index 532Loading general 564
load anchoring eyelets 567
long load 565
Lock indication 236 setting 237
Locking/unlocking Tailgate 241, 254
Locking wheel bolts 543 Locks Locking 239
unlocking 239
Low battery charge level
start battery 447
Low beams 157
Lower the rear end 565
Low oil level 588
Low-speed driving 435 activate with function button 436
M
Maintenance 576
corrosion protection 626
Max. axle weight 641
Max. roof load 641
Media player 485, 486, 487 compatible file formats 514, 515
voice control 150
Messages and symbols Adaptive Cruise Control 307
Collision warner with auto-brake 344
Messages in BLIS 350
Messages in display 106, 142 handling 107, 143
saved 109, 144
Mileage 89
Misting condensation in headlights 620, 623
Mood lighting 166, 167
N
Net cargo compartment 571
O
Occupant safety 43
Occupant weight sensor 56
Octane rating 443
Oil, see also Engine oil 644
On-board diagnostics 576
On-board Diagnostic socket 36
Option/accessory 21
Outside temperature gauge 94
Overheating 446, 449
Owner's information 16
OWNER'S MANUAL 21
environmental labeling 23
in cellular phone 20
in the center display 17, 18