2018 VOLVO XC90 T8 towing

10
STARTING AND DRIVING
Starting the vehicle424
Switching off the vehicle 426
Ignition modes 427
Selecting ignition mode 428
Brake functions 429
Brakes 429
Brake Assist System 431
Braking on wet roads 431
Braking on salted roads 431
Maintenance of the brake system 432
Parking brake 432
Activating and deactivating the park- ing brake 433
Settings for automatically activatingthe parking brake 434
Parking on a hill 434
Parking brake malfunction 435
Auto-hold brakes 436
Activating and deactivating Auto-hold at a standstill 436
Hill Start Assist 437
Braking assist after a collision 437
Transmission 438
Gear selector positions for automatictransmissions 439

Using the steering wheel paddles
* to
shift 441
Shiftlock 442
The kickdown function 442
Gear indicator *
442
All Wheel Drive (AWD) 443
Drive systems 443
Starting and stopping the combus- tion engine in Twin Engine vehicles 444
Drive modes 445
Changing drive mode 449
Leveling control * and suspension
450
Leveling control settings *
453
Low Speed Control 453
Activating and deactivating LowSpeed Control using the function button 454
Hill Descent Control 454
Activating and deactivating HillDescent Control using the functionbutton 455
Economical driving 456
Using the electric motor only 457
Factors affecting electric motor range 458
"Hold" and "Charge" functions 459
Preparing for a long trip 460
Winter driving 461

Driving through standing water462
Opening/closing the fuel filler door 462
Refueling 463
Fuel 464
Octane rating 465
Emission controls 467
Overheating of engine and transmission 468
Battery drain 469
Jump starting using another battery 469
Detachable towbar *
471
Driving with a trailer 472
Trailer Stability Assist *
474
Checking trailer lights 475
Towing using a towline 476
Attaching and removing the towing eyelet 476
Recovery 477
HomeLink ®
* 478
Programming HomeLink ®
* 479
Using HomeLink 480
Type approval for HomeLink ®
* 481
Compass 481
Activating and deactivating the compass 482
Calibrating the compass 482

14

Touching up minor paint damage645
Color codes 646
Changing rear window wipers 647
Replacing windshield wiper blades 648
Windshield wipers in the service position 649
Filling washer fluid 650
SPECIFICATIONS
Type designations654
Dimensions 657
Weights 659
Towing capacity and tongue weight 660
Engine specifications 661
Engine oil specifications 662
Coolant specifications 663
Transmission fluid specifications 663
Brake fluid specifications 663
Fuel tank volume 664
Air conditioning specifications 664
Approved tire pressure 665
INDEX
Index 667

SAFETY
}}
53
WARNING
If your vehicle has become water-damaged in any way (e.g., soaked floor mats/standingwater on the floor of the vehicle), do notattempt to start the engine. This may causeairbag deployment, which could result in seri-ous injury. Volvo recommends towing thevehicle directly to an authorized Volvo work-shop. Before attempting to tow the vehicle:
1. Switch off the ignition for at least 10minutes and disconnect the battery.
2. Follow the instructions for manually over- riding the shiftlock system.
Deployed airbags
WARNING
If any of the airbags have deployed:
• Do not attempt to drive the vehicle. Have it towed to an authorized workshop.
• If necessary, seek medical attention.
Related information
•
Safety (p. 42)
• Driver/passenger-side airbags (p. 53)
• Side airbags (p. 60)
• Inflatable curtain (p. 60)
Driver/passenger-side airbags
As a supplement to the seat belts, the vehicle is equipped with driver and passenger side frontairbags.
Driver/passenger side front airbags.
In a frontal collision, the airbags help protect the driver's and passenger's head, face and chestand the driver's knees and legs. A collision of a sufficiently violent force will trig- ger the sensors and one or more airbags willinflate. The airbag helps cushion the initial impactof the collision for the passenger. The airbagdeflates when compressed by the collision. Asmall amount of powder will also be releasedfrom the airbag. This may appear to be smokeand is normal. The entire process, from inflationto deflation of the airbag, occurs within tenths ofa second.
NOTE
The sensors react differently depending on the circumstances of the accident andwhether or not the seat belt is used. Does notapply to all belt positions. In some accident situations, only one (or none) of the airbags will be deployed. Thesensors monitor the impact of the collisionand react accordingly to deploy one, severalor no airbags.
WARNING
The seat belt and the airbag work together. If the seat belt is not used or is used incorrectly,the airbag may not provide the intended pro-tection in a collision. To help prevent injury in the event the airbag is deployed, passengers should sit as uprightas possible, with their feet on the floor andtheir backs against the seat backrest.
WARNING
Volvo recommends contacting an authorized Volvo workshop for repairs. Incorrectly per-formed repairs to the airbag system couldimpair function and lead to serious injury.
The front airbag systemThe front airbag system includes gas generators surrounded by the airbags, and deceleration sen-

||
SAFETY
62
WARNING
Never attempt to perform repairs or reset electrical components on your own after thevehicle has been in safety mode. This couldresult in injury or prevent the vehicle fromfunctioning properly. Volvo recommends hav-ing the vehicle inspected and reset to normaloperating status by an authorized Volvo work- shop after
Safety mode See Owner's
manual has been displayed.
WARNING
When the vehicle is in safety mode, it should not be towed behind another vehicle. It shouldbe towed from the site on a tow truck. Volvorecommends towing the vehicle directly to anauthorized Volvo workshop.
Related information
• Safety (p. 42)
• Starting and moving the vehicle when it is in safety mode (p. 62)
• Recovery (p. 477)
Starting and moving the vehiclewhen it is in safety mode If safety mode has been set, it may be possible to reset the system in order to start and movethe vehicle a short distance, for example, if it isblocking 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 imme- diately.
2. Switch off the ignition.
3. Then try to start the vehicle. >The message
Vehicle start System
check, wait will appear in the instrument
panel while the electrical system performs a system check and then attempts toreset to normal operating mode. This maytake up to a minute. 4.
When
Vehicle start System check, wait is
no longer displayed in the instrument panel, try again to start the vehicle.
CAUTION
If the message Safety mode See Owner's
manual is still displayed, the vehicle should
not be driven or towed behind another vehi- cle. If the vehicle needs to be moved, it mustbe towed on a tow truck. Even if no damageis apparent, there may be hidden damage thatcould make the vehicle impossible to control.
Moving the vehicle when it is in safety mode
1. If the message Normal mode The vehicle
is now in normal mode is displayed after
attempting to start the engine, the vehicle may be moved carefully from its presentposition if, for example, it is blocking traffic.
2. Do not move the vehicle farther than abso- lutely necessary.
WARNING
When the vehicle is in safety mode, it should not be towed behind another vehicle. It shouldbe towed from the site on a tow truck. Volvorecommends towing the vehicle directly to anauthorized Volvo workshop.

DRIVER SUPPORT
* Option/accessory.
274
Electronic Stability Control
The Electronic Stability Control (ESC 2
) function
helps the driver avoid skidding and improves the vehicle's directional stability.
This symbol will be displayed in the instrument panel when theESC system is intervening. When the ESC has intervened to apply the brakes, a pulsingsound may be heard and the
vehicle may accelerate more slowly than expec-ted when the accelerator pedal is depressed.
The ESC system consists of the following sub- functions: • Stability control 3
• Spin control and active yaw control
• Engine drag control
• Trailer Stability Assist
WARNING
•The Electronic Stability Control system ESC is supplementary driver supportintended to facilitate driving and make itsafer – it cannot handle all situations inall traffic, weather and road conditions.
• ESC 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.
Stability control 3This function helps control the driving and brak-ing force of each individual wheel in an attemptto stabilize the vehicle.
Spin control and active yaw controlThis function is active at low speeds and brakesthe wheels that are spinning to transfer additionalpower from wheels that are not spinning. This function also helps prevent the wheels from spinning while the vehicle is accelerating.
Engine drag control
Engine drag control (EDC
4
) helps prevent inad-
vertent wheel lock, e.g. after downshifting orusing engine braking when driving at low speedson a slippery surface. Inadvertent wheel lock while driving could impair the driver's ability to steer the vehicle.
Trailer Stability Assist *5
Trailer Stability Assist (TSA
6
) is designed to help
stabilize a vehicle that is towing a trailer if thevehicle and trailer have begun to sway. For moreinformation, see "Trailer Stability Assist".
NOTE
The TSA function is deactivated if ESC Sport
Mode is activated.
Related information
• Electronic Stability Control Sport mode (p. 275)
• Activating/deactivating Sport mode in Elec-tronic Stability Control (p. 275)
1
Roll Stability Control
2 Electronic Stability Control
3 Also called traction control.
4 Engine Drag Control
5Trailer Stability Assist is included if the vehicle is equipped with a Volvo original towbar.6
Trailer Stability Assist

DRIVER SUPPORT
}}
* Option/accessory.307
Adaptive Cruise Control limitations
Adaptive Cruise Control (ACC 56
) may have lim-
ited functionality in certain situations.
Steep roads and/or heavy loadsAdaptive Cruise Control is primarily intended to be driven on flat roads. The function may not beable to maintain the correct time interval to thevehicle ahead when driving down steep hills. Thedriver should be extra attentive and prepared toapply the brakes.
• Do not use Adaptive Cruise Control if thevehicle is carrying a heavy load or towing atrailer.
Other limitations
•
The Off Road drive mode cannot be
selected if Adaptive Cruise Control is acti- vated.
NOTE
The function uses the vehicle's camera unit, which has some general limitations – see thesection "Camera unit limitations".
NOTE
The function uses the vehicle's radar unit, which has some general limitations – see thesection "Radar unit limitations".
Related information
• Adaptive Cruise Control
* (p. 295)
Switching between Cruise Controland Adaptive Cruise Control
In vehicles equipped with Adaptive Cruise Con- trol (ACC 57
), the driver can switch between
Cruise Control (CC 58
) and ACC.
A symbol in the instrument panel indicates which cruise control system is active
CCACC
AA
Cruise control Adaptive Cruise Control
A WHITE symbol: The function is active. GRAY symbol: Standby mode
Switching from ACC to CCTo do so: 1. Press the
button on the steering wheel
keypad to put Adaptive Cruise Control in standby mode.
56 Adaptive Cruise Control

||
DRIVER SUPPORT
* Option/accessory.
324
The driver is responsible for ensuring that the vehicle maintains a suitable distancefrom such obstacles.
• The camera and radar sensors do nothave the capacity to detect all oncomingobjects and obstacles in traffic environ-ments, e.g. potholes, stationary obstaclesor objects that completely or partiallyblock the route.
• Pilot Assist does not "see" pedestrians,animals, etc.
• The recommended steering input is lim-ited in force, which means that it cannotalways help the driver to steer and keepthe vehicle within the lane.
• Pilot Assist is switched off if the powersteering is working with reduced power -e.g. during cooling due to overheating(see section "Speed-dependent steeringforce").
The driver can always correct or adjust steeringassistance provided by Pilot Assist by turning thesteering wheel to the desired position.
Steep roads and/or heavy loadsPilot Assist is primarily intended to be driven onflat roads. The function may not be able to main-tain the correct time interval to the vehicle aheadwhen driving down steep hills. The driver should be extra attentive and prepared to apply thebrakes.
• Do not use Pilot Assist if the vehicle is carry-ing a 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.
Other limitations
•
The Off Road drive mode cannot be
selected when Pilot Assist is activated.
NOTE
The function uses the vehicle's camera unit, which has some general limitations – see thesection "Camera unit limitations".
NOTE
The function uses the vehicle's radar unit, which has some general limitations – see thesection "Radar unit limitations".
Related information
• Pilot Assist (p. 311)
• Speed-dependent steering wheel resistance (p. 272)
Pilot Assist
* symbols and messages
A number of symbols and messages relating to Pilot Assist may be displayed in the instrument panel and/or the head-up display *.

||
DRIVER SUPPORT
328
CauseAction
Water or snow is spraying/swirling up and blocking the radar signals or the camera's range of visibility. No action. Very wet or snow-covered roads may sometimes prevent the cam-era/radar sensor from functioning.
There is dirt between the inside of the windshield and the camera/radarsensor. Consult a workshop to have the area of the windshield on the inside of the cam-era's casing cleaned. An authorized Volvo workshop is recommended.
NOTE
Keep the windshield in front of the camera and radar unit clean.
Vehicle speedThe radar sensor's ability to detect a vehicle ahead is significantly reduced if:
• the speed of the vehicle ahead differs greatlyfrom your vehicle's speed
Limited field of visionThe radar sensor has a limited field of vision. Insome situations, it may detect a vehicle later thanexpected or not at all.
The radar sensor's field of vision.
The radar sensor's detection of vehicles very close to your vehicle may be delayed in cer-tain situations, e.g. if a vehicle pulls in between your vehicle and the vehicle directlyahead.
Small vehicles, such as motorcycles, or vehi- cles that are not driving in the center of thelane may remain undetected.
In curves, the radar may detect the wrong vehicle or lose sight of a target vehicle.
Low trailers
Low trailer in the radar shadow.
Low trailers may also be difficult or even impossi- ble for the radar to detect. The driver should beextra alert when driving behind vehicles towing low trailers when Adaptive Cruise Control or Pilot Assist is activated.