2015 VOLVO XC90 towing

STARTING AND DRIVING
354
Trailer Stability Assist (TSA)
Trailer Stability Assist is a system designed to help stabilize a vehicle that is towing a trailerwhen the vehicle and trailer have begun to swayand is part of the Electronic Stability Control sys-tem.
FunctionA vehicle towing a trailer may begin to sway for various reasons. Normally this only occurs at highspeeds but, for example, if the trailer is overloa-ded or if the load is unevenly distributed in thetrailer, there is risk of swaying. Swaying may be caused by factors such as:
• The vehicle and trailer are hit by a sudden, strong crosswind
• The vehicle and trailer are traveling on anuneven road surface or drive over a bump
• Sudden movements of the steering wheel
Facts about TSA
• The stability system symbol in the instrumentpanel will flash when TSA is working
• If the driver switches off the stability system'sSpin Control function, TSA will also beswitched off (but will be on again the nexttime the engine is started)
• TSA may not intervene when the vehicle andtrailer begin to sway if the driver tries to com-pensate for the swaying motion by movingthe steering wheel rapidly
How TSA worksOnce swaying has begun, it can be very difficult to stop, which makes it difficult to control thevehicle and trailer. The TSA system continuously monitors the vehi- cle's movements, particularly lateral movement. Ifthe system detects a tendency to sway, thebrakes are applied individually on the frontwheels, which has a stabilizing effect on the vehi-cle and trailer. This is often enough to enable thedriver to regain control of the vehicle. If this is not adequate to stop the swaying motion, the brakes are applied to all of the wheels on thevehicle and on the trailer if it is equipped withbrakes, and engine power is temporarily reduced.As the swaying motion begins to decrease andthe vehicle-trailer have once again become sta-ble, TSA will now stop regulating the brakes/engine power and the driver regains control ofthe vehicle. TSA is deactivated if the driver deactivates
ESCin the center display's menu system.
When the ESC symbol in the
instrument panel flashes, TSA is active.
Related information
• Detachable trailer hitch (p. 353)
• Driving with a trailer (p. 351)
• Electronic Stability Control (ESC) (p. 308)

STARTING AND DRIVING
360
Selecting a drive mode
1.Press the DRIVE MODE control in the tunnel
console.
> A pop-up menu will open in the center display.
2. Roll the control upward or downward to scroll to the desired drive mode. A drive mode can also be selected by tap- ping its button on the center display.
3. Press the control again to select it.
Available drive modes
COMFORTThis is the default mode. When the engine is started, COMFORT 5
drive
mode will be selected and the Start/Stop func- tion will be activated. This setting offers driving comfort and light steering.
ECOECO drive mode is designed to help promote fuel-efficient driving. In this mode, Start/Stop is activated, ground clearance is lowered to help reduce wind resis-tance and certain climate system functions willbe reduced. There is an ECO guage in the instrument panel to indicate the current level of fuel-efficiency. Seealso the article "ECO drive mode."
OFF ROADThis mode helps maximize the vehicle's capacity to traverse difficult terrain or poor roads. In OFF ROAD, ground clearance is maximized, the steering is light, All Wheel Drive and HillDescent Control are activated and a compassand altimeter will be displayed in the instrumentpanel. Start/Stop is deactivated. This drive mode can only be activated at low speeds (the permissable speed range will beshown on the speedometer). At higher speeds,OFF ROAD mode will be cancelled and anotherdrive mode will be activated. This mode is not intended for normal street driv- ing.
CAUTION
OFF ROAD drive mode may not be used if the vehicle is towing a trailer without an elec-trical connection. This could result in damageto the pneumatic suspension system's bel-lows.
Due to the increased ground clearance, if the OFF ROAD mode was selected when the enginewas switched off, it will also restart in this mode.
DYNAMICDYNAMIC driving mode is designed to provide sportier driving characteristics. Steering response will be more immediate, the suspension will be stiffer and low ground clear-ance will help reduce body roll when cornering.Start/Stop will be deactivated.
5
If the OFF ROAD mode was selected when the engine was switched off, it will also restart in this mode.

STARTING AND DRIVING
* Option/accessory, for more information, see Introduction.371
AutomaticallyIf the paddles are not used for a period of time, they will deactivate automatically. The number ofthe current gear in the instrument panel changes to "D".
The paddles will remain active if engine braking is currently being used.
Related information
• Gear selector positions (p. 367)
• Gear shift indicator (p. 370)
Low Speed Control (LSC) Low Speed Control (LSC) helps make off-road driving easier on slippery surfaces when towinga trailer on grass, etc. This feature is part of the
Off Road drive mode.
When driving at low speeds, LSC prioritizes low gears and all wheel drive to help avoid wheel spinand to improve the vehicle's tractive force. Theaccelerator pedal and engine react differently tomake low-speed driving easier. It is activated along with Hill Descent Control (HDC), which increases engine braking to helpkeep vehicle speed low and smooth, even drivingdown steep hills.
Activating LSCThis function can be activated in different ways,depending on how the vehicle is equipped.
Using the driving mode control
*
Select the Off Road drive mode to activate LSC.
Select any other drive mode to turn it off.
NOTE
When LSC with HDC is activated by the Off
Road drive mode, the feel of the accelerator
pedal and engine response will change. The function is deactivated when driving at higher speeds and must be reactivated atlower speeds if so desired.
Related information
• Brake functions (p. 332)
• Hill Descent Control (HDC) (p. 334)
• Drive modes
* (p. 359)

VOLVO ON CALL WITH SENSUS CONNECT *
* Option/accessory, for more information, see Introduction.
424
Changing ownership of a vehicle with Volvo On Call
If the vehicle changes owners, the Volvo On Call (VOC) service should be cancelled.
Cancelling the VOC serviceIf your vehicle changes owners, contact your Volvo retailer to cancel the VOC service. The sub-scription will be terminated and the service his-tory will be erased. When the vehicle changes owners, all personal settings should be reset to the factory defaults,see the owner's manual supplement.
Starting the VOC serviceIf you purchase a previously owned Volvo withVOC: The new owner should contact his/her Volvo retailer to transfer the remaining period of theVOC subscription. All contact information mustbe updated in order for VOC to function and toensure that the previous owner is no longerauthorized to use VOC services in the vehicle.The new owner will be given a 4-digit personalcode, which is used to identify him/her as beingauthorized to approve certain VOC services.
Related information
• Volvo On Call (VOC)
* (p. 414)
• Volvo On Call PIN code (p. 418)
• Resetting user data when the vehicle changes owners (p. 112)
Volvo On Call manual safety service Contact the Volvo On Call (VOC) customer service center in emergency situations.
To contact the VOC customer service center manually: 1.
Press SOS to contact the customer service
center for help in emergency situations such as illness, injury, a threat, etc.
2. An emergency signal is transmitted to the VOC customer service center with informa-tion about the vehicle's location.
3. The VOC customer service center attempts to establish voice contact with the driver todetermine the extent of the accident and/orthe need for assistance.
If voice contact is not possible, the VOC cus- tomer service then contacts the emergency serv-ices for appropriate action.
Related information
• Volvo On Call safety services (p. 424)
• Volvo On Call roadside assistance (p. 425)
• Using Volvo On Call (p. 414)
Volvo On Call safety services
The Volvo On Call (VOC) manual or automatic safety services are intended for use in emer-gency situations.
Automatic alarmIn the event of certain types of accidents, a signal is transmitted automatically to the VOC customerservice center, who take appropriate actionaccording to the information that they receive. The following occurs if the seat belt pretension- ers, airbags or the inflatable curtains have beentriggered:
1. A signal is transmitted automatically to the VOC customer service center with informa- tion about the vehicle's location and that anairbag, etc., has been triggered.
2. The VOC customer service center attempts to establish voice contact with the driver todetermine the extent of the accident and theneed for assistance.
3. The VOC customer service center then con- tacts the appropriate emergency service(police, ambulance, towing, etc.).
If voice contact is not possible, the VOC cus- tomer service then contacts the emergency serv-ices for appropriate action.
Manual alarmPress SOS to contact the customer service cen-
ter for help in emergency situations, see also thearticle "VOC manual safety service."

WHEELS AND TIRES
471
Tread wear indicatorThe tires have wear indicator strips running across or parallel to the tread.
The letters TWI are printed on the side of the tire. When approximately 1/16" (1.6 mm) is left onthe tread, these strips become visible and indi-cate that the tire should be replaced. Tires withless than 1/16" (1.6 mm) tread offer very poortraction. When replacing worn tires, it is recommended that the tire be identical in type (radial) and sizeas the one being replaced. Using a tire of thesame make (manufacturer) will help preventalteration of the driving characteristics of thevehicle.
Related information
• Tire direction of rotation (p. 470)
• Checking tire inflation pressure (p. 473)
Loading specifications Properly loading your vehicle will provide maxi- mum return of vehicle design performance.
Weight designations
Before loading your vehicle, familiarize yourself with the following terms for determining yourvehicle's weight ratings, with or without a trailer,from the vehicle's Federal/Canadian Motor Vehi-cle Safety Standards (FMVSS/CMVSS) label, andthe vehicle's tire information placard:
Curb weightThe weight of the vehicle including a full tank of fuel and all standard equipment. It does notinclude passengers, cargo, or optional equipment.
Capacity weightAll weight added to the curb weight, including cargo and optional equipment. When towing,trailer hitch tongue load is also part of cargoweight.
Permissible axle weightThe maximum allowable weight that can be car- ried by a single axle (front or rear). These num-bers are shown on the Federal/Canadian MotorVehicle Safety Standards (FMVSS/CMVSS) label.The total load on each axle must never exceed itsmaximum permissible weight.
Gross vehicle weight (GVW)The vehicle's curb weight + cargo + passengers.
Steps for Determining Correct Load Limit1. Locate the statement "the combined weight
of occupants and cargo should never exceed XXX pounds" on your vehicle's placard.
2. Determine the combined weight of the driver and passengers that will be riding in yourvehicle.
3. Subtract the combined weight of the driver and passengers from XXX kilograms or XXXpounds.
4. The resulting figure equals the available amount of cargo and luggage load capacity.For example, if the "XXX" amount equals1400 lbs. and there will be five 150 lb. pas-sengers in your vehicle, the amount of availa-ble cargo and luggage load capacity is650 lbs. (1400 – 750 (5 × 150) = 650 lbs.)
5. Determine the combined weight of luggage and cargo being loaded on the vehicle. Thatweight may not safely exceed the availablecargo and luggage load capacity calculatedin Step 4.
6. If your vehicle will be towing a trailer, load from your trailer will be transferred to yourvehicle.

WHEELS AND TIRES
* Option/accessory, for more information, see Introduction.475
NOTE
•If you overfill the tire, release air by push- ing on the metal stem in the center of thevalve. Then recheck the pressure withyour tire gauge.
• Some spare tires require higher inflationpressure than the other tires. Consult thetire inflation pressure table or the inflationpressure placard.
Changing tires
When changing wheels to another dimension, always follow Volvo's instructions.
When changing to tires of another
dimension
If you mount tires with a dimension other thanthe factory-installed tires, contact an authorizedVolvo retailer to update the vehicle's software.This may also be necessary when changing fromsummer to winter tires, or vice versa.
Related information
• Snow tires and chains (p. 473)
• Spare tire (p. 476)
• Installing a wheel (p. 479)
• Removing a wheel (p. 478)
Tools in the cargo compartment
Tools for e.g., changing wheels, etc. are located under the cargo compartment floor.
The foam block under the cargo compartment floor contains the towing eyelet, the tool for removing plastic wheel bolt covers, the jack * and
the lug wrench *. There is also a storage space for
the tool used to remove locking wheel bolts.

WHEELS AND TIRES
479
5.
Lug wrench and towing eyelet
Screw the towing eyelet into the lug wrench as shown in the illustration.
CAUTION
The towing eyelet must be screwed into the lug wrench as far as possible.
6. With the vehicle still on the ground, use the
lug wrench/towing eyelet to loosen the wheel bolts ½ – 1 turn by exerting downward(counterclockwise) pressure. 7. When hoisting the vehicle, it is essential that
the jack (or garage lift arms) are positionedcorrectly on the underside of the vehicle.There are two jack attachment points oneach side of the vehicle and there is a groovein the plastic cover at each attachment point.Position the jack under the attachment pointto be used on a level, firm, non-slippery sur-face and crank it up until it is correctlyaligned and seated in the attachment point.The pin on the jack's head must be posi-tioned in the hole in the attachment point.
8. Raise the vehicle until the wheel to bechanged is lifted off the ground. Remove the wheel bolts.
Related information
• Wheel bolts (p. 477)
• Installing a wheel (p. 479)
• Jack (p. 476)
Installing a wheel
It is important to install wheels properly.
1. Clean the contact surfaces on the wheel and hub.
2. Lift the wheel and place it on the hub.
3. Install the wheel bolts and tighten hand-tight. Using the lug wrench, tighten crosswise until all bolts are snug.
4. Lower the vehicle to the ground and alter- nately tighten the bolts crosswise to103 ft. lbs. (140 Nm).
5. Press the plastic covers onto the wheel bolts.

558Emergency towing 344
Emission inspection readiness 488Engine
overheating 341
Start/Stop 364, 365
starting 356
turning off 359
Engine compartment fuses 501
Engine compartment overview 519
Engine oil 544 checking 520, 521
Engine specifications 543Entering a destination POI 440
Entering destination free-text search 436
recent options 438
tapping the map 435
using an address 441
Enterining destination 435
Environment 15Eyelet towing 343
Eyelets for anchoring loads 212
F
Federal Clean Air Act 488 Floor mats placing correctly 356
Fluid specifications 541, 542, 546Fog lights front 143
rear 144
Front airbags 83, 84 disconnecting passenger