brake sensor VOLVO XC90 TWIN ENGINE 2020 Owners Manual

9

Park Assist Camera*
375
Location and field of vision of Park Assist Cameras * 376
Park Assist Camera trajectory lines *
378
Park Assist sensor field 380
Activating Park Assist Camera 381
Park Assist Camera symbols and messages 383
Park Assist Pilot *
384
Types of parking with Park Assist Pilot * 385
Using Park Assist Pilot *
386
Leaving a parallel parking spacewith Park Assist Pilot *389
Park Assist Pilot * limitations
389
Park Assist Pilot * messages
392
HYBRID INFORMATION
General information about Twin Engine 394
Charging the hybrid battery 395
Charging current 397
Charge cable 397
Charging cable residual current device 399
Charging cable temperature moni-toring 400
Opening and closing the chargingsocket cover 400
Initiating hybrid battery charging 401
Charging status in the vehicle'scharging socket 403
Charging status in the chargingcable's charging module 403
Charging status in the instrumentpanel 405
Stopping hybrid battery charging 407
Twin Engine symbols and mes-sages in the instrument panel 408
Long-term storage of vehicleswith hybrid batteries 410
STARTING AND DRIVING
Starting the vehicle
412
Switching off the vehicle 414
Ignition modes 415
Selecting ignition mode 416
Brake functions 417
Brakes 417
Brake Assist System 419
Braking on wet roads 420
Braking on salted roads 420
Maintenance of the brake system 420
Parking brake 421
Activating and deactivating the parking brake 421
Settings for automatically activat-ing the parking brake 423
Parking on a hill 423
Parking brake malfunction 423
Auto-hold brakes 424
Activating and deactivating Auto-hold at a standstill 425
Hill Start Assist 426
Braking assist after a collision 426
Transmission 426
Automatic transmission 427
Gear selector positions for auto-matic transmissions 428

YOUR VOLVO
30
Drive-E ‒ purer driving pleasure
Volvo is committed to the well-being of its customers. As a natural part of this commit-ment, we care about the environment inwhich we all live. Concern for the environ-ment means an everyday involvement inreducing our environmental impact.
Volvo's environmental activities are based on a holistic view, which means we consider theoverall environmental impact of a productthroughout its complete life cycle. In this con-text, design, production, product use, andrecycling are all important considerations. Inproduction, Volvo has partly or completelyphased out several chemicals including CFCs,lead chromates, asbestos, and cadmium; andreduced the number of chemicals used in ourplants 50% since 1991. Volvo was the first in the world to introduce into production a three-way catalytic converterwith a Lambda sond, now called the heatedoxygen sensor, in 1976. The current version ofthis highly efficient system reduces emissionsof harmful substances (CO, HC, NOx) from theexhaust pipe by approximately 95 - 99% andthe search to eliminate the remaining emis-sions continues. Volvo is the only automobilemanufacturer to offer CFC-free retrofit kits forthe air conditioning system of all models as farback as the 1975 model 240. Advanced elec-tronic engine controls and cleaner fuels arebringing us closer to our goal. In addition to continuous environmental refinement of con-ventional gasoline-powered internal combus-tion engines, Volvo is actively looking atadvanced technology alternative-fuel vehicles. When you drive a Volvo, you become our part- ner in the work to lessen the vehicle's impacton the environment. To reduce your vehicle'senvironmental impact, you can:
Maintain proper air pressure in your tires.Tests have shown decreased fuel econ-omy with improperly inflated tires.
Follow the recommended maintenanceschedule in your Warranty and ServiceRecords Information booklet.
Drive at a constant speed whenever possi-ble.
See a trained and qualified Volvo servicetechnician as soon as possible for inspec-tion if the check engine (malfunction indi-cator) light illuminates, or stays on afterthe vehicle has started.
Properly dispose of any vehicle-relatedwaste such as used motor oil, used batter-ies, brake pads, etc.
When cleaning your vehicle, please usegenuine Volvo car care products. All Volvocar care products are formulated to beenvironmentally friendly.
Twin Engine vehicles
If possible, precondition the vehicle withthe charging cable before driving.
If preconditioning is not possible in coldweather, use the seat and steering wheelheating primarily. Avoid heating the entirepassenger compartment, which reducesthe hybrid battery's charge level.
Choose the
Pure drive mode to help mini-
mize electric power consumption.
In hilly terrain, put the gear selector in mode
B to utilize the electric motor's
braking function when the acceleratorpedal is released. This helps charge thehybrid battery.
Related information
Economical driving (p. 446)
Starting and stopping preconditioning(p. 234)
The Owner's Manual and the environment(p. 25)
Air quality (p. 210)

SAFETY
64
Safety mode Safety mode is a feature that is triggered after a collision if there is potential damage toan important function in the vehicle, such asthe fuel lines, sensors for one of the safetysystems, the brake system, etc.
If the vehicle has been involved in a collision, the text Safety mode See Owner's manualmay appear in the instrument panel along with the warning symbol if the panel is undamagedand the vehicle's electrical system is intact.The message indicates that one or more of thevehicle's functions may be reduced.
WARNING
Never attempt to restart the vehicle if you smell fuel fumes when the message Safety
mode See Owner's manual is displayed
in the instrument panel. Leave the vehicle immediately.
If safety mode has been set, it may be possi- ble to reset the system in order to start andmove the vehicle a short distance, for exam-ple, if it is blocking traffic.
WARNING
Never attempt to perform repairs or reset electrical components on your own afterthe vehicle has been in safety mode. Thiscould result in injury or prevent the vehiclefrom functioning properly. Volvo recom-mends having the vehicle inspected andreset to normal operating status by an authorized Volvo workshop after
Safety
mode See Owner's manual has been dis-
played.
WARNING
When the vehicle is in safety mode, it should not be towed behind another vehi-cle. It should be towed from the site on atow truck. Volvo recommends towing thevehicle directly to an authorized Volvoworkshop.
Related information
Safety (p. 44)
Starting and moving the vehicle when it is in safety mode (p. 64)
Recovery (p. 470)
Starting and moving the vehicle when it is in safety mode If safety mode has been set, it may be possi- ble to reset the system in order to start andmove the vehicle a short distance, for exam-ple, if it is blocking traffic.
Starting the vehicle when it is in safety mode
1. Check the vehicle for damage, particularly
for fuel leakage. Make sure you do not detect any gasoline fumes. If the damage to the vehicle is minor and there is no fuel leakage/fumes, you mayattempt to start the engine.
WARNING
Never attempt to restart the vehicle if you smell fuel fumes when the message Safety
mode See Owner's manual is displayed
in the instrument panel. Leave the vehicle immediately.
2. Switch off the ignition.

DISPLAYS AND VOICE CONTROL
* Option/accessory.
84
Instruments and controls in left- hand drive vehicles The overviews show the location of the vehi- cle's displays and controls.
Steering wheel and dashboard
Parking lights, daytime running lights, low beams, high beams, turn signals, rear foglight, trip computer reset
Steering wheel paddles for manual shift- ing *
Head-up display *
Instrument panel
Wipers and washers, rain sensor *
Right-side steering wheel keypad
Steering wheel adjustment
Horn
Left-side steering wheel keypad
Hood open
Display lighting, tailgate unlock/open */
close *, halogen headlight height adjust-
ment
Ceiling console
Front reading lights and courtesy lighting
Panoramic roof *
Ceiling console display ON CALL button
HomeLink ®
*
Center and tunnel console
Center display
Hazard warning flashers, defrosting, media, glove compartment open
Gear selector
Start knob
Drive modes
Parking brake
Auto-hold brakes

DISPLAYS AND VOICE CONTROL
* Option/accessory.
86
Instrument panel The instrument panel displays information related to the vehicle and driving.
The instrument panel contains gauges, indica- tors and monitoring and warning symbols.What is shown in the instrument panel variesdepending on the equipment, settings andfunctions currently active. The instrument panel is activated as soon as a door is opened, i.e. in ignition mode 0. The
panel will power down after a short period oftime if it is not used. To reactivate it, do one ofthe following:
Depress the brake pedal.
Activate ignition mode
I.
Open one of the doors.
WARNING
If the instrument panel turns off, does not activate when the ignition is switched on,or part/all of the panel cannot be read, donot drive the vehicle. Consult a workshopimmediately. Volvo recommends anauthorized Volvo workshop.
WARNING
If the instrument panel is not functioning properly, information about brakes, airbagsor other safety-related systems may not bedisplayed. The driver will then not be ableto check the status of the vehicle systemsor receive relevant warnings and informa-tion.
The illustration is generic - details may vary accord- ing to vehicle model.
Location in the instrument panel:
Left side In the center Right side
Speedometer Indicator and warning symbols
Tachometer/Hybrid gaugeA
Trip odometer Ambient temperature sensor Gear indicator Odometer B
Clock Drive Mode
Cruise control/speed limiter information Message (also graphics in some cases) Fuel gauge Road sign information * Door and seat belt status Hybrid battery gauge
– Hybrid battery's charge level Distance to empty tank

DRIVER SUPPORT
* Option/accessory.
280
Driver support systems
The vehicle is equipped with a number of driver support systems that can provide thedriver with active or passive assistance in var-ious situations.
The systems can, for example, help the driver:
maintain a set speed
maintain a set time interval to the vehicle ahead
help prevent a collision by warning thedriver and applying the brakes
park the vehicle.
Some of the systems are standard and othersare options. This also varies from market tomarket.
Related information
IntelliSafe – driver support and safety(p. 31)
Speed-dependent steering wheel resis-tance (p. 280)
Stability system (p. 285)
Curve Speed Assist (CSA)
* (p. 315)
Electronic Stability Control (p. 281)
Distance Alert
* (p. 285)
Cruise control (p. 287)
Adaptive Cruise Control
* (p. 290)
Pilot Assist
* (p. 300)
Radar sensor (p. 318)
Camera (p. 321)
City Safety
™ (p. 327)
Rear Collision Warning
* (p. 341)
BLIS
* (p. 342)
Cross Traffic Alert
* (p. 346)
Road Sign Information
* (p. 350)
Driver Alert Control (p. 355)
Lane Keeping Aid (p. 357)
Steering assistance at risk of collision(p. 364)
Park Assist
* (p. 370)
Park Assist Camera
* (p. 375)
Park Assist Pilot
* (p. 384)
Speed-dependent steering wheel resistance Speed-dependent power steering increases the steering wheel resistance in pace withthe vehicle's speed, which can help give thedriver an enhanced feeling of control and sta-bility.
Steering is stiffer on highways. When parking and at low speeds, it will be easier to movethe steering wheel.
NOTE
In rare situations, the power steering may become too hot andrequire temporary cooling – dur-ing such time the power steering
will work at reduced output and the steer-ing wheel may feel more difficult to move. The message
Power steering Assistance
temporarily reduced will be displayed
along with this symbol in the instrument panel.
While the power steering is working at reduced power, the driver support func-tions and systems with steering assistanceare not available.

DRIVER SUPPORT
* Option/accessory.
290
Cruise control standby mode Cruise control (CC 18
) 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 modeAdaptive Cruise Control may go into standbymode if:
the wheels lose traction
the engine speed (rpm) is too low/high
the temperature in the brake systembecomes 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. 287)
Selecting and activating cruise control(p. 288)
Deactivating cruise control (p. 289)
Adaptive Cruise Control
*19
Adaptive Cruise Control (ACC 20
) helps the
driver maintain a constant speed with a set time interval 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 camera/radar sensor measures the distance to the vehicle ahead.
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-cle. When there are no longer slower-moving
18 Cruise Control
19 Depending on market, this function can be either standard or optional.
20 Adaptive Cruise Control

DRIVER SUPPORT
* Option/accessory.291
vehicles ahead, the vehicle will return to the set speed. If the Curve Speed Assist (CSA)
* function is
activated, it may also affect the vehicle's speed.
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.
Adaptive Cruise Control regulates speed byaccelerating and braking. It is normal for thebrakes to emit a slight sound when they arebeing used to adjust speed. Adaptive Cruise Control always attempts toregulate speed smoothly. The driver mustapply the brakes in situations requiring imme-diate braking. For example, when there aregreat differences in speed between vehicles orif the vehicle ahead brakes suddenly. Due tolimitations in the radar sensor, braking mayoccur unexpectedly or not at all. Adaptive Cruise Control is designed to follow a vehicle ahead in the same lane and maintaina time interval to that vehicle set by the driver.If the radar sensor does not detect a vehicleahead, it will instead maintain the speed setby the driver. This will also happen if the speedof the vehicle ahead exceeds the set speed foryour vehicle.
CAUTION
Only a workshop may perform mainte- nance on driver support components – anauthorized Volvo workshop is recom-mended.
Related information

Driver support systems (p. 280)
Adaptive Cruise Control
* controls and dis-
play (p. 292)
Selecting and activating Adaptive Cruise Control
* (p. 293)
Adaptive Cruise Control
* limitations
(p. 296)
Symbols and messages for AdaptiveCruise Control
* (p. 298)
Collision risk warning from driver support (p. 309)
Setting time interval to the vehicle ahead(p. 312)
Adjusting set speed for driver support(p. 311)
Auto-hold braking with driver support(p. 313)
Switching target vehicles with driver sup-port (p. 310)
Passing assistance (p. 317)

DRIVER SUPPORT
}}
* Option/accessory.295
Adaptive Cruise Control *27
standby
mode Adaptive Cruise Control (ACC 28
) can be deac-
tivated and put in standby mode. This may happen automatically or be due to driverintervention.
Standby mode means that the function is selected in the instrument panel but not acti-vated. In standby mode, Adaptive Cruise Con-trol will not regulate speed or distance to thevehicle ahead.
Standby mode due to action by the
driver
Adaptive Cruise Control will be deactivatedand put in standby mode if any of the follow-ing 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.
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.
WARNING
If Adaptive Cruise Control is in standby mode, the driver must intervene andregulate both speed and distance tothe vehicle ahead.
If the vehicle comes too close to a vehi-cle ahead when Adaptive Cruise Con-trol is in standby mode, the driver canbe warned of the short distance by the Distance Alert
* function.
Automatic standby modeAdaptive Cruise Control is dependent on other systems, such as Electronic Stability Control (ESC 29
). If any of these other systems stops
working, Adaptive Cruise Control will be auto- matically deactivated.
WARNING
With automatic standby mode, the driver is warned by an acoustic signal and a mes-sage on the instrument panel.
The driver must then regulate vehicle speed, apply the brakes if necessary,and maintain a safe distance to othervehicles. Adaptive Cruise Control may go into standbymode if:
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 under 5 km/h(3 mph) and the vehicle ahead turns sothat ACC no longer has a vehicle to follow.
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/radar sensor is covered bysnow or heavy rain (the camera lens/radarwaves are blocked).Related information

Adaptive Cruise Control
* (p. 290)
Selecting and activating Adaptive Cruise Control
* (p. 293)
27
Depending on market, this function can be either standard or optional.
28 Adaptive Cruise Control
29 Electronic Stability Control

DRIVER SUPPORT
* Option/accessory.
296
Deactivating Adaptive Cruise Control
*
(p. 294)
Adaptive Cruise Control
* limitations
(p. 296)
Adaptive Cruise Control *30
limitations
Adaptive Cruise Control (ACC 31
) 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.
Other limitationsThe 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. 290)
Camera/radar sensor limitations (p. 322)
30
Depending on market, this function can be either standard or optional.
31 Adaptive Cruise Control