warning light VOLVO XC90 2015 Workshop Manual

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.
316
Overview
Blind Spot Information indicators
Indicator light
Blind Spot Information symbol
The indicator light illuminates on the side of the vehicle where the system has detected anothervehicle. If your vehicle is passed on both sides atthe same time, both lights will illuminate.
Principle for Blind Spot Information: Zone 1. Blind area, Zone 2. Area for approaching/passing vehicles
Blind Spot Information functions when your vehi- cle is moving at speeds above approx. 6 mph(10 km/h). Blind Spot Information is designed to react to:
• vehicles that are passing your vehicle
• other vehicles that are rapidly approaching your vehicle
When Blind Spot Information detects a vehicle in zone 1 or a fast-approaching vehicle in zone 2,the indicator light in the respective door mirrorwill glow steadily. If the driver then uses the turn signal on the side on which the warning is given, the indicator lightwill begin flashing and become brighter.
WARNING
• Blind Spot Information does not function in sharp curves.
• Blind Spot Information does not functionwhen your vehicle is backing up.
Related information
•
Blind Spot Information (BLIS)
* On/Off
(p. 317)
• Blind Spot Information (BLIS)
* limitations
(p. 317)
• Cross Traffic Alert (CTA)
* (p. 318)

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.317
Blind Spot Information (BLIS)*
On/Off The Blind Spot Information function can be acti- vated/deactivated.
Blind Spot Information indicators
Indicator light
Blind Spot Information symbol
Blind Spot Information can be activated/deacti- vated in the center display's Function view.
–In Function view, tap BLIS.
> When Blind Spot Information is activated/ deactivated, the indicator light in the but- ton will be green/gray.
If BLIS is activated when the engine is started,the indicator lights in the door mirrors will flashonce. If BLIS is deactivated when the engine isswitched off, it will remain off the next time theengine is started and the indicator lights in thedoor mirrors will not illuminate.
Related information
•
Blind Spot Information (BLIS)
* (p. 315)
Blind Spot Information (BLIS) *
limitations
Blind Spot Information functionality may be reduced in certain situations.
• Dirt, ice and snow on the sensors may reduce functionality and prevent the systemfrom providing warnings.
• Do not attach any objects, tape, decals, etc.,on the surface of the sensors.
• BLIS is deactivated if a trailer is attached tothe vehicle's electrical system.

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.
318
Maintenance
The BLIS/CTA 8
sensors are located on the
inside of the rear fenders/bumper.
Keep the highlighted area clean (on both sides of the vehicle)
For the system to function optimally, the area over and around the sensors must be kept clean. If one or both of the sensors are blocked and "
Rear sensors blocked, cleaning needed" is
displayed in the instrument panel, clean the area over and around the sensors as soon as possible. A text message can be erased by briefly pressing the O button on the right-side steering wheel
keypad.
CAUTION
Repairs to the BLIS/CTA systems and/or repainting the rear bumper should only bedone by a trained and qualified Volvo servicetechnician.
Related information
• Blind Spot Information (BLIS)
* On/Off
(p. 317)
• Blind Spot Information (BLIS)
* (p. 315)
• Cross Traffic Alert (CTA)
* (p. 318)
Cross Traffic Alert (CTA) *
Cross Traffic Alert (CTA) is a supplementary part of Blind Spot Information and is intended todetect vehicles crossing behind your vehiclewhile you are backing up.
When does Cross Traffic Alert function
Principle for CTA
CTA supplements BLIS by warning the driver of crossing traffic behind your vehicle, for example,when backing out of a parking space. It is primarily designed to detect another vehicle but in certain cases may also detect pedestriansor smaller objects such as bicycles. CTA is only activated when the vehicle is rolling rearward or backing up and is activated automati-cally when the gear selector is put in reverse.
8 Cross Traffic Alert *

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.319
•
An audible signal indicates that CTA has detected something that is approaching fromthe side. The signal will come from either theleft or right infotainment system speakers,depending on which the side of your vehiclethe approaching vehicle/ object has beendetected.
• A warning is indicated using the Park Assist
*
system's graphic in the instrument panel.
• An icon is also shown in the Park Assist Camera's
* Top view.
Related information
• Activating/deactivating Cross Traffic Alert(CTA)
* (p. 319)
• Blind Spot Information (BLIS)
* with Cross
Traffic Alert (CTA) * symbols and messages
(p. 322)
• Cross Traffic Alert (CTA)
* limitations (p. 320)
Activating/deactivating Cross Traffic Alert (CTA) *
Cross Traffic Alert (CTA) can be activated/deac- tivated separately from Blind Spot Information(BLIS).
CTA is activated/deactivated in the center display's Functionview.
–Tap Cross Traffic Alert in Function view.
> CTA activates/deactivates (the indicator light in the button will be green/gray).
CTA is activated when the engine is started.
WARNING
• BLIS and CTA are information systems, NOT warning or safety systems and donot function in all situations.
• BLIS and CTA do not eliminate the needfor you to visually confirm the conditionsaround you, and the need for you to turnyour head and shoulders to make surethat you can safely change lanes or backup.
• As the driver, you have full responsibilityfor changing lanes/backing up in a safemanner.
Related information
•
Cross Traffic Alert (CTA)
* (p. 318)
• Blind Spot Information (BLIS)
* On/Off
(p. 317)

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.325
Activating/deactivating Lane Departure Warning (LDW)
LDW can be activated/deactivated.
Activating/deactivating
The function can be activated/deactivated in the center display's Function view.
–Tap the Lane Departure Warning button.
> LDW is activated (GREEN indicator light in the button), or is deactivated (GRAY indicator light in the button).
Type of warningChoose the type of warning that the driver willreceive if the vehicle starts to leave its drivinglane. 1. Tap
Settings in the center display's Top
view.
2. Tap
My CarIntelliSafeLane
Departure Warning. 3.
Under
Lane Departure Warning feedback,
select: •
Sound: an audible warning signal will be
provided
•
Vibrations: the driver will be warned by
vibrations in the steering wheel
Related information
• Driving lane assistance (p. 323)
Activating/deactivating Lane Keeping Aid (LKA)
*
LKA can be activated/deactivated.
Activating/deactivating
The function can be activated/deactivated in the center display's Function view.
–Tap Lane Keeping Aid.
> LKA is activated (GREEN indicator light in the button), or is deactivated (GRAY indi- cator light in the button).
Type of warningChoose the type of warning that the driver willreceive if the vehicle starts to leave its drivinglane. 1. Tap
Settings in the center display's Top
view.
2. Tap
My CarIntelliSafeLane Keeping
Aid.

STARTING AND DRIVING
* Option/accessory, for more information, see Introduction.
332
WARNING
If both symbols illuminate at the same time and the brake level is below the MIN mark in
the reservoir or if a brake system- related message is shown in the information display: DO NOT DRIVE . Have the vehicle towed to a
trained and qualified Volvo service technician and have the brake system inspected.
Related information
• Brake functions (p. 332)
• Brake assist system (p. 333)
• Emergency brake lights (p. 334)
Brake functions
The vehicle's standard braking features are aug- mented by a number of auxiliary help functions.
In addition to the wheel brakes and the parking brake, the vehicle is equipped with several auto-matic brake assist functions. These systems helpthe driver by e.g., keeping the vehicle stationarywhen the brake pedal is not depressed (at a traf-fic light or intersection), when starting up a hill orwhen driving down a hill. These systems include: • Auto-hold brakes
• Hill Start Assist
• Braking assist after a collision
• Hill Descent Control
*
Related information
•Brakes (p. 330)
• Parking brake (p. 335)
• Hill Descent Control (HDC) (p. 334)
• Auto-hold brake function (p. 332)
Auto-hold brake function
With the Auto-hold brake function, the driver can release the brake pedal and the brakes willremain applied, for example, when the vehiclehas stopped at a traffic light or intersection.
When the vehicle is no longer moving forward, Auto-hold applies the brakes automatically, eitherusing the normal brakes or the parking brake.The brakes will be released when the acceleratorpedal is depressed. If the driver's door is opened or the engine is turned off, the parking brake will be applied auto-matically.
Auto-hold control
Auto-hold control and indicator light
Turn Auto-hold on or off by pressing the control in the tunnel console. The indicator light illumi-nates when the function is on.

STARTING AND DRIVING
333
When Auto-hold is off, Hill Start Assist (HSA) will be activated to help prevent the vehicle from roll-ing backwards when starting up a hill.
Instrument panel symbol
SymbolExplanation
The symbol in the instrument panel illuminates when this func-tion is using the normal brakes tokeep the vehicle stationary.
A
B
This symbol in the instrument panel illuminates when Auto-holdis using the parking brake to keepthe vehicle stationary
A
US models
B Canadian models
Related information
• Hill Start Assist (p. 335)
• Brake functions (p. 332)
Brake assist system
The Brake Assist System (BAS) increases brak- ing force, thereby helping reduce braking dis-tance. The system monitors the driver's braking habits and increases braking force when necessary.Brake force can be increased up to the point atwhich the ABS system is activated. The functionis deactivated when pressure on the brake pedaldecreases.
NOTE
•When BAS is activated, the brake pedal will go down farther than usual. Depressthe pedal as long as necessary.
• Braking will stop when the pedal isreleased.
Related information
•Brakes (p. 330)
Braking effect after a collision
In the event of a collision in which the airbags or seat belt pretensioners deploy or if a collisionwith an animal is detected, the vehicle's brakesare applied to help prevent or mitigate a secon-dary collision.
Maintaining control of the vehicle after a collision may be difficult. To help avoid or mitigate theeffect of a secondary collision, the brakes areapplied automatically to help bring the vehicle toa stop. The brake lights and hazard warning flashers will be activated and the flashers will remain on afterthe vehicle has come to a standstill. The parkingbrake will then be applied automatically. In a situation where stopping the vehicle may not be desirable, the driver can override this systemby pressing the accelerator pedal. This feature can only function if the brake system is intact after the collision.
Related information
• Brake functions (p. 332)
• Airbag system (p. 83)
• Rear Collision Warning (RCW) (p. 277)

STARTING AND DRIVING
* Option/accessory, for more information, see Introduction.
334
Emergency brake lights
The emergency brake lights activate in the event of hard braking/rapid deceleration at most nor-mal driving speeds or if the ABS system is acti-vated. This function causes an additional taillighton each side of the vehicle to illuminate to helpalert vehicles traveling behind.
Once the emergency brake lights have been acti- vated, if the driver releases the brake pedal, thebrake lights will return to their normal function.
Related information
• Brakes (p. 330)
• Hazard warning flashers (p. 144)
• Brake lights (p. 143)
Hill Descent Control (HDC) HDC is a type of low-speed automatic engine brake and makes it possible to increase ordecrease the vehicle's speed on steep downhillgradients using only the accelerator pedal, with-out applying the brakes. HDC is integrated into the
Off Road drive mode.
HDC is particularly useful when driving down steep hills with rough surfaces, and where theroad may have slippery patches.
WARNING
HDC does not function in all situations, and is a supplementary braking aid. The driver hasfull responsibility for driving in a safe manner.
FunctionHDC allows the vehicle to roll forward or in reverse at very low speed with enhanced enginebraking. However, speed can be adjusted withthe accelerator pedal. When the acceleratorpedal is released, the vehicle will return to verylow speed. The driver can use the brakes to slow or stop the vehicle at any time. HDC is activated along with Low Speed Control (LSC), which together make driving on slipperysurfaces at low speeds easier. When HDC and LSC are activated, this changes the response from the accelerator pedal andengine.
Activating HDCHDC only functions at low speeds.
Using the driving mode control
*
Select the Off Road driving mode to activate
HDC. Select a different drive mode to turn HDC off. If this is done while the vehicle is on a steep down-grade, engine braking will decrease gradually.
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.

STARTING AND DRIVING
339
Before a long distance trip
It is always worthwhile to have your vehicle checked by a trained and qualified Volvo servicetechnician before driving long distances. Yourretailer will also be able to supply you with bulbs,fuses, spark plugs and wiper blades for your usein the event that problems occur.
As a minimum, the following items should be checked before any long trip:
• Check that engine runs smoothly and that fuel consumption and the oil level are normal.
• Check for fuel, oil, and fluid leakage.
• Have the transmission oil level checked.
• Check condition of drive belts.
• Check state of the battery's charge.
• Examine tires carefully (including the sparetire where applicable), and replace those thatare worn. Also, check tire inflation pressure.
• The brakes, front wheel alignment, and steer-ing gear should be checked by a trained andqualified Volvo service technician only.
• Check all lights, including high beams.
• Reflective warning triangles are legallyrequired in some states/provinces.
• Have a word with a trained and qualifiedVolvo service technician if you intend to drivein countries where it may be difficult toobtain the correct fuel. •
Consider your destination. If you will be driv-ing through an area where snow or ice arelikely to occur, consider using snow tires.
Driving economically
Better driving economy can be obtained by thinking ahead, avoiding rapid starts and stopsand adjusting the speed of your vehicle to imme-diate traffic conditions.
Economical driving conserves natural
resources
Observe the following rules: • Bring the engine to normal operating tem- perature as soon as possible by driving witha light foot on the accelerator pedal for thefirst few minutes of operation. A cold engineuses more fuel and is subject to increasedwear.
• Whenever possible, avoid using the vehiclefor driving short distances. This does notallow the engine to reach normal operatingtemperature.
• Drive carefully and avoid rapid accelerationand hard braking.
• Use the transmission's Drive (
D) position as
often as possible and avoid using kick-down.
• Using the engine's Eco function can helpimprove fuel economy.
• Do not exceed posted speed limits.
• Avoid carrying unnecessary items (extra load)in the vehicle.
• Maintain correct tire pressure. Check tirepressure regularly (when the tires are cold).

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341
CAUTION
•Engine damage will occur if water is drawn into the air cleaner.
• Damage to any components, the engine,transmission, turbo-charger, differential orits internal components caused by flood-ing, vapor lock or insufficient oil is notcovered under warranty.
• Do not allow the vehicle to stand in waterup to the door sills longer than absolutelynecessary. This could result in electricalmalfunctions.
• If the engine has been stopped while thevehicle is in water, do not attempt torestart it. Have the vehicle towed out ofthe water.
WARNING
•Avoid driving through standing or rushing water. Doing so can be dangerous and itmay also be difficult to determine theactual depth of the water.
• If water cannot be avoided, after drivingthrough the water, press lightly on thebrake pedal to ensure that the brakes arefunctioning normally. Water or mud canmake the brake linings slippery, resultingin delayed braking effect.
Related information
•Towing recommendations (p. 344)
Overheating the engine and transmission
In demanding driving conditions, such as when transporting heavy loads, driving in mountainousareas or in very hot weather there is a risk ofoverheating the engine or transmission.
• The engine's output may be slightly limited if there is a risk of overheating.
• Remove e.g., auxiliary lights mounted in frontof the grille in hot weather.
• If the temperature of the engine coolantbecomes too high, the warning symbol will illuminate and the message
Engine
temperature/Stop safely will be displayed.
Stop the vehicle as soon as possible in a safe place and let the engine idle for severalminutes.
• If the message
Engine temperature/High
temperature Turn off engine or Engine
coolant/Stop safely is displayed, stop
safely and turn off the engine.
• If the transmission begins to overheat, an alternative gear shifting program will beselected. An integrated protective functionwill also by activated, the warning symbol will illuminate and the message
Transmission
warmHigh temperature Reduce speed
or Transmission warmStop safely, wait
for cooling will be displayed in the instru-
ment panel.