steering wheel VOLVO XC90 2015 Repair Manual

DRIVER SUPPORT
3263.
Under
Lane Keeping Aid Warning
Feedback, select:
•
Sound: an audible warning signal will be
provided
•
Vibrations: the driver will be warned by
vibrations in the steering wheel
Type of assistanceSelect the type of assistance LKA should provide: 1. Tap
Settings in the center display's Top
view.
2. Tap
My CarIntelliSafeLane Keeping
Aid.
3. Under
Lane Keeping Aid Assistance
Mode, select:
•
Assist: the system will provide steering
assistance but no warning.
•
Both: the system will provide steering
assistance and warning
•
Warning: the system will provide warning
but no steering assistance
Related information
• Driving lane assistance (p. 323)

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.
328
Symbols and messages
SymbolMessageExplanation
Driver support system Reduced functionality Service requiredThe system is not functioning properly. Contact a trained and qualified Volvo service techni- cian.
Windscreen sensor Sensor blocked, see Owner's manualThe camera's functionality is limited.
Lane Keeping Aid Apply steeringLKA's steering assistance does not function if the driver's hands are not on the steering wheel. Steer the vehicle actively.
Related information
• Driving lane assistance (p. 323)
• Activating/deactivating Lane Departure Warning (LDW) (p. 325)
• Activating/deactivating Lane Keeping Aid (LKA)
* (p. 325)

STARTING AND DRIVING
* Option/accessory, for more information, see Introduction.
330
Starting and driving The vehicle is equipped with features that sup- plement its basic functions, such as shifting gears with steering wheel paddles * and the fuel-
conserving start/stop function.
The vehicle is equipped with an automatic trans- mission that also makes it possible to shift gearsmanually. Certain functions can also be used when the engine is not running, depending on the ignitionmode being used.
Related information
• Starting the engine (p. 356)
• Ignition modes (p. 355)
• Automatic transmission (p. 367)
• Opening/closing the fuel filler door (p. 348)
• Start/Stop (p. 364)
• Parking brake (p. 335)
Brakes The brake system is a hydraulic system consist- ing of two separate brake circuits. If a problemshould occur in one of these circuits, it is stillpossible to stop the vehicle with the other brakecircuit.
Brake systemIf one of the brake circuits is not functioning, more pressure will be needed on the brake pedal(and the pedal will go down farther) for normalbraking effect. If the brake pedal must be depressed farther than normal and requires greater foot pressure,the stopping distance will be longer. Pressure on the brake pedal is enhanced by the power braking function. The power brakes only function when the engine is running. If the power brakes are not working, considerably higher pressure will be required on the brakepedal to compensate for the lack of power assis-tance. This can happen for example when towingyour vehicle or if the engine is switched off whenthe vehicle is rolling. The brake pedal feels stifferthan usual. When the Hill Start Assist function is being used, it will take slightly longer for the brake pedal toreturn to its normal position if the vehicle isparked on an incline or uneven surface. When driving in very hilly areas or if the vehicle iscarrying a heavy load, manual gear shifting canbe used (move the gear selector toward +/-) forengine braking to augment the brakes. Hill Descent Control or the
Off Road*
driving mode
can also be used to increase the engine braking effect at low speeds.
Anti-lock Braking System ABSThe ABS system helps to improve vehicle control (stopping and steering) during severe brakingconditions by limiting brake lockup. When ABS is operating, there may be some vibration in the brake pedal, which is normal. The system performs a brief self-diagnostic test when the engine has been started and driverreleases the brake pedal. Another automatic testmay be performed when the vehicle first reachesa speed of approximately 6 mph (10 km/h). Thebrake pedal will pulsate several times and asound may be audible from the ABS controlmodule, which is normal.
Cleaning the brake discsCoatings of dirt and water on the brake discsmay result in delayed brake function. This delay isminimized by cleaning the brake linings. Cleaning the brake pads is advisable in wet weather, prior to long-term parking, and after thevehicle has been washed. Do this by braking gen-tly for a short period while the vehicle is moving.

STARTING AND DRIVING
340•
Remove snow tires when threat of snow or ice has ended.
• Note that roof racks, ski racks, etc, increaseair resistance and also fuel consumption.
• At highway driving speeds, fuel consumptionwill be lower with the air conditioning on andthe windows closed than with the air condi-tioning off and the windows open.
• Using the onboard trip computer's fuel con-sumption modes can help you learn how todrive more economically.
Other factors that decrease gas mileage are:
• Dirty air cleaner
• Dirty engine oil and clogged oil filter
• Dragging brakes
• Incorrect front end alignment
Some of the above mentioned items and others are checked at the standard maintenance inter-vals.
Handling and roadholding
• Vehicle load, tire design and inflation pres- sure all affect vehicle handling. Therefore,check that the tires are inflated to the rec-ommended pressure according to the vehicleload. Loads should be distributed so thatcapacity weight or maximum permissible axleloads are not exceeded.
• At the specified curb weight your vehicle hasa tendency to understeer, which means thatthe steering wheel has to be turned more than might seem appropriate for the curva-ture of a bend. This ensures good stabilityand reduces the risk of rear wheel skid.Remember that these properties can alterwith the vehicle load. The heavier the load inthe cargo compartment, the less the ten-dency to understeer.
Driving through standing water
The vehicle should be driven with extreme cau- tion if it is necessary to drive through standingwater.
The vehicle can be driven through water up to a depth of approximately 17.7 in. (45 cm) at walk-ing speed to help prevent water from enteringthe differential and the transmission. Thisreduces the oil's lubricating capacity and mayshorten the service life of these components.
• Take particular care when driving through flowing water.
• After driving through water, apply the brakesand check that they are functioning correctly.
• Clean the electrical connections for trailerwiring after driving in mud or water.
• When driving through water, maintain lowspeed and do not stop in the water.

STARTING AND DRIVING
344
Towing recommendations
Always check with state and local authorities before attempting to tow another vehiclebecause this type of towing is subject to regula-tions regarding maximum towing speed, lengthand type of towing device, lighting, etc.
Towing your vehicle behind another
vehicle
1. After securely attaching the towing line to both vehicles, put the gear selector in posi- tion N and release the parking brake.
2. Put the ignition in mode II by turning the
start knob to START (without depressing
the brake pedal) and hold it in this position
for approx. 4 seconds. Release the knob.
3. Put the gear selector in position N and
release the parking brake.
4. The towing vehicle can now begin driving.
5. Keep the tow rope taut when the towing vehicle slows down by applying light pressure on the brake pedal. This will help prevent jar-ring movements of the vehicle being towed.
6. Be prepared to apply the brakes to stop the vehicle being towed.
CAUTION
General towing precautions:
• If the vehicle's battery is dead, an auxiliary battery will be necessary to provide cur-rent for releasing the electric parkingbrake and to move the gear selector from the
P position to N. If this is not possible,
use the shiftlock override procedure tomanually release the gear selector from P
and move it to N.
• Maximum speed: 50 mph (80 km/h). Do not exceed the maximum allowable tow-ing speed.
• Maximum distance with front wheels onground: 50 miles (80 km).
• The vehicle should only be towed in theforward direction.
WARNING
• When the vehicle is being towed, the igni- tion should be in mode
II (in mode I, all of
the vehicle's airbags are deactivated).
• The remote key must remain inside the vehicle.
• The power brakes and power steering willnot function when the engine is not run-ning. Approximately 5 times more pres-sure will be required on the brake pedaland the steering wheel will be considera-bly harder to turn.
• The towing eyelets must not be used forpulling the vehicle out of a ditch or forany similar purpose involving severestrain.

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
357
Start knob in the tunnel console between the front seats
WARNING
Before starting the engine:• Fasten the seat belt.
• Check that the seat, steering wheel and mirrors are adjusted properly.
• Make sure the brake pedal can bedepressed completely. Adjust the seat ifnecessary. To start the engine.
1. A remote key must be in the passenger com-
partment. On models with the standard Passive Start, the key has to be in the frontsection of the passenger compartment. If thevehicle is equipped the optional PassiveEntry system (keyless locking/unlocking) thekey can be anywhere in the vehicle.
2. Press firmly on the brake pedal 4
.
3. Turn the start knob toward START and
release it to start the engine.
> The starter motor will crank until the engine starts or its overheating protection is triggered.
WARNING
• Never use more than one floor mat at a time on the driver's floor. Before driving,remove the original mat from the driver'sseat floor before using any other type offloor mat. Any mat used in this positionshould be securely and properly anchoredin the attaching pins. An extra mat on thedriver's floor can cause the acceleratorand/or brake pedal to catch. Check thatthe movement of these pedals is notimpeded.
• Volvo's floor mats are specially manufac-tured for your car. They must be firmlysecured in the clips on the floor so thatthey cannot slide and become trappedunder the pedals on the driver's side.
Back-up reader in the tunnel console
4
If the vehicle is moving, it is only necessary to turn the start knob toward START to start the engine.

STARTING AND DRIVING
* Option/accessory, for more information, see Introduction.359
Turning the engine off
The engine can be turned off using the start knob on the tunnel console.
Start knob in the tunnel console between the front seats
To turn off the engine:
–Turn the start knob toward STOP and
release it to switch the engine off.
If the gear selector is in P or if the vehicle is mov-
ing:
–Hold the knob in the STOP position until the
engine stops.
Related information
• Starting the engine (p. 356)
• Ignition modes (p. 355)
Drive modes
*
Selecting a drive mode affects the vehicle's driv- ing characteristics to help make driving moreenjoyable or easier in certain types of situations.
The following systems are adapted to help pro- vide the best vehicle performance in the respec-tive drive modes: • Steering
• Engine/transmission/All Wheel Drive
• Brakes
• Pneumatic suspension and shock absorbers
• Instrument panel
• Start/Stop
• Climate system settings
Select the drive mode best suited to the current driving conditions. Please be aware that not all modes can be selected in all driving situations. The selectedmode will be displayed in the instrument panel.

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.361
INDIVIDUALThis setting allows you to adapt a driving mode to your personal preferences. Select one of the other driving modes as a basis and change the settings to provide the drivingcharacteristics that you prefer. These settings willbe stored in a separate driver profile. This drivingmode is only available if it has been activated inthe center display. INDIVIDUAL is only available if it has been acti- vated in the center display.
Settings view6
for INDIVIDUAL driving mode
1. Tap Settings in the center display's Top
view.
2. Tap
My CarIndividual Drive Mode and
tap Individual Drive Mode. 3.
Select:
Eco, Comfort or Dynamic.
The following settings can be modified: •
Driver Display
•Steering force
•Powertrain Characteristics
•Brake Characteristics
•Pneumatic suspension and shock absorbers
Related information
• Adjustable steering force
* (p. 308)
• Loading (p. 207)
• Start/Stop (p. 364)
• ECO drive mode (p. 362)
• All Wheel Drive (AWD) (p. 372)
• Hill Descent Control (HDC) (p. 334)
• Driver profiles (p. 112)
6
Generic ilustration.