2017 VOLVO V90 brake light

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DRIVER SUPPORT
* Option/accessory.
374
The car's left-hand camera is out of order.
Black camera sector
A black camera sector is also shown in the fol- lowing instances, but then without the symbol for
defective camera:
• open door
• open tailgate
• folded-in door mirror.
Light conditionsThe camera image is adjusted automatically according to prevailing light conditions. Becauseof this, the image may vary slightly in brightnessand quality. Poor light conditions can result inreduced image quality.
MaintenanceClean camera lenses regularly with lukewarmwater and car shampoo - be careful not toscratch the lenses.
NOTE
Keep the camera lens clear of dirt, snow and ice to ensure optimum function. This is partic-ularly important in poor light.
Related information
•
Park Assist Camera
* (p. 368)
• Starting the Park Assist Camera
* (p. 372)
• Park assist lines and fields for the Park Assist Camera
* (p. 370)
Park Assist Pilot *
Active parking assistance (Park Assist Pilot - PAP) helps the driver to park in or leave a park-ing space.
PAP checks first if a space is sufficiently big and thereafter helps the driver to turn the steeringwheel and manoeuvre the car into the space. The centre display indicates with symbols, graph- ics and text the various operations to be carriedout and when to do so.
NOTE
The PAP function measures the space and steers the car - the driver's task is to:
• keep a close watch around the car
• follow the instructions in the centre dis-play
• change gear (reverse/forward)
• control and maintain a safe speed
• brake and stop.

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STARTING AND DRIVING
* Option/accessory.
386
NOTE
To reach level I or II without starting the
engine - do not depress the brake pedal, or
the clutch pedal for cars with manual gear changing, when these ignition positions are tobe selected.
• Ignition position I
- Turn the ignition dial to
START and release it. The control automati-
cally returns to its starting position.
• Ignition position II
- Turn the ignition dial to
START and hold it in the START position for
approx. 4 seconds. Then release the knob, which automatically returns to its startingposition.
• Back to ignition position 0
- To return to
ignition position 0 from position I and II -
Turn the ignition dial to STOP and release it.
The control automatically returns to its star-ting position.
Related information
• Starting the car (p. 386)
• Switching off the car (p. 387)
• Driver display (p. 90)
Starting the car
The car is started using the remote control key and the start knob in the tunnel console.
Start knob in the tunnel console.
The remote control key is not physically used when starting the car since the car is equippedwith support for keyless starting (Passive Start). To start the car:
1. The remote control key must be inside the car. For cars with Passive Start, the key needs to be located in the front part of thepassenger compartment. With the keyless locking/unlocking option (Passive Entry *),
the key can be anywhere in the car. 2. For cars with automatic gear changing, make
sure that gear position P or N is selected.
For cars with manual gear changing, make sure that the gear lever is in neutral positionand that either the clutch pedal or the brakepedal is depressed.
3. Depress the brake pedal fully 1
.
4. Turn the start knob to START and release it.
The control automatically returns to its star-ting position.
NOTE
For diesel-engined cars, there may be a slight delay before starting is initiated.
When the engine is started the starter motor works until the engine is started or until its over-heating protection triggers.
Backup reader's location in the tunnel console.
1 If the car is moving, then you simply need to turn the start knob towards START to start the engine.

STARTING AND DRIVING
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397
With automatic gearbox
• Stop the car with the foot brake and then keep your foot on the brake pedal - theengine stops automatically.
With manual gearbox
• Declutch, set the gear lever in neutral posi-tion and release the clutch pedal - theengine stops automatically.
In drive mode
Eco or Comfort3 , the engine may
auto-stop before the car is completely stationary. With the
Adaptive cruise or Pilot Assist func-
tion activated, the engine will autostop after approximately three seconds. See the section "Conditions for Start/Stop func- tion".
AutostartThe following is required for the engine to auto-start: With automatic gearbox
• Release the brake pedal - the engine will autostart and you can continue driving. On anuphill gradient hill start assist (HSA) engages, which prevents the car from rollingbackwards.
• When the
Auto hold function is activated,
auto-start is delayed until the accelerator pedal is depressed.
• When the
Adaptive cruise or Pilot Assistfunction are activated, the engine will autos- tart when the accelerator pedal is depressed, or by pressing the
button on the left
keypad of the steering wheel.
• Maintain foot pressure on the brake pedal and depress the accelerator pedal - theengine auto-starts.
• On a downhill gradient: Release pressure onthe brake pedal slightly so that the carbegins to roll - the engine will auto-start aftera slight speed increase.
With manual gearbox
• With the gear lever in neutral position:Depress the clutch pedal or depress theaccelerator pedal - the engine starts.
• On a downhill gradient: Release pressure onthe brake pedal slightly so that the carbegins to roll - the engine will auto-start aftera slight speed increase.
Symbols in the driver display
With 12-inch driver display
•
The text READY is shown in the tachometer
when the function is available.
• A pointer in the tachometer points to
READY when the function is active and the
engine is auto-stopped.
• The text
READY is greyed out when the
function is not available.
• No text is shown when the function is deacti- vated.
The function is active and the engine is auto-stopped.
3
Normal start mode.

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STARTING AND DRIVING
* Option/accessory.
400
Related information
• Start/Stop (p. 396)
• Using the Start/Stop function (p. 396)
• Support battery (p. 533)
Drive modes
*
Selection of drive mode affects the car's driving characteristics in order to enhance the drivingexperience and facilitate driving in special situa-tions.
Using the drive modes it is possible to quickly have access to the car's numerous functions andsettings for different driving needs. The followingsystems are adapted to obtain the best possibledriving characteristics in each respective drivemode: • Steering
• Engine/gearbox 5
/all-wheel drive *
• Brakes
• Shock absorption
• Driver display
• Start/Stop function
• Climate settings
Select the drive mode that best suits the current driving conditions. Remember that not all drivemodes can be selected in all situations.
Selecting drive mode
1. Press the drive mode control DRIVE MODE.
> A pop-up menu is opened in the centre display.
2. Roll the wheel upward or downward until the desired drive mode is highlighted.
3. Press the drive mode control or tap directly on the touch screen to confirm the selection.
> The selected drive mode is indicated inthe driver display.
A message is shown when a drive mode is unse- lectable, for example:
•
Cannot be selected because gear is in manual
•Cannot be selected due to low battery
5 Applies to automatic gearbox.

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STARTING AND DRIVING
* Option/accessory.
402 3.
In
Presets, select a drive mode to start from:Eco, Comfort or Dynamic.
Possible adjustments apply to settings for:
•
Driver Display
•Steering force
•Powertrain Characteristics
•Brake Characteristics
•Suspension Control
•ECO Climate
•Start/Stop.
Related information
• Speed-dependent steering force (p. 272)
• Level control
* and shock absorption (p. 405)
• Start/Stop (p. 396)
• Drive mode ECO (p. 402)
• All-wheel drive
* (p. 405)
Drive mode ECO
Driving mode ECO mode optimises the car's
driving characteristics for more fuel efficient and environmentally-conscious driving.
Use this drive mode to save fuel and the environ- ment. The following properties are adapted for Eco driv- ing:
• Gearbox gearshift points 8
.
• Engine management and response from theaccelerator pedal.
• The Eco Coast 9
freewheel function is acti-
vated and engine braking is deactivatedwhen the accelerator pedal is released atspeeds between 65 and 140 km/h(40 and 87 mph).
• Some of the climate control system's set-tings work at reduced power or are deacti-vated.
• The driver display shows information in anECO gauge which facilitates environmentally-conscious and fuel-efficient driving.
Selecting ECO modeThe Eco mode is deactivated when the engine isswitched off, and it must therefore be activatedafter each time the engine is started. The driver display shows ECO when the function is acti-vated.
With drive mode control
*
1.
Press the drive mode control DRIVE MODE.
> A pop-up menu is opened in the centre display.
2. Roll the wheel upward or downward until the desired drive mode is highlighted.
3. Press the drive mode control or tap directly on the touch screen to confirm the selection.
8Only cars with automatic gearbox.
9 Only cars with automatic gearbox.

STARTING AND DRIVING
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* Option/accessory.403
In the centre display's function view
A car without drive mode con- trol has a function button for
Driving mode ECO in the
centre display's function view.
–Press the button in order to activate the function.
> An indicator in the button illuminates when the function is activated.
Freewheel function Eco Coast 10The freewheel function Eco Coast means in prac- tice that engine braking ceases, meaning in turnthat the car's kinetic energy is used to freewheelfor longer distances. When the driver releasesthe accelerator pedal the gearbox is automaticallydisengaged from the engine whose speed isreduced to idling speed with reduced consump-tion. The function is best used where it is possible to freewheel a long way, e.g. roads with a slightdownhill gradient or when there is a predictablespeed reduction to freewheel into a zone with alower speed limit.
Activating the freewheel function
The function is activated when the accelerator pedal is fully released, in combination with thefollowing parameters:
• Drive mode
Eco is activated.
• The gear selector is in
D position.
• Speed within the range of approx. 65-140 km/h (40-87 mph).
• The road's downhill gradient is not steeperthan approx. 6%.
The driver display shows
COASTING when the
freewheel function is being used.
Limitations
The freewheel function is not available if:
• Engine and/or gearbox are not at normal operating temperature.
• The cruise control is activated.
• The gear selector is moved from the
D posi-
tion and the manual position.
• The speed is outside the range ofapprox. 65-140 km/h (40-87 mph).
• The road's downhill gradient is steeper thanapprox. 6%.
• Manual gear changing is performed with the steering wheel paddles
*.
Deactivating and switching off the freewheel function
In certain situations it may be desirable to deacti- vate or switch off the function in order to useengine braking. Examples of such situations maybe on steep downhill gradients or before animminent overtaking manoeuvre - in order to beable to do it in the safest way possible. Deactivate the freewheel function as follows:
• Actuate the accelerator or brake pedal.
• Move the gear selector to manual position.
• Changing gear with steering wheel paddles
*.
Switch off the freewheel function as follows:
• Change drive mode
*, or switch off the
Driving mode ECO in the function view.
Even without the freewheel function, it is possible to freewheel for short distances. This, in turn,reduces consumption. However, for the best fueleconomy it is better to have the freewheel func-tion activated and be able to freewheel for longerdistances.
ECO gauge in the driver displayThe ECO gauge indicates how fuel-efficient thedriving is:
10 Only cars with automatic gearbox.

STARTING AND DRIVING
406
Brake functions
The car's brakes are used to reduce the speed or prevent the car from rolling.
Besides the foot brake and parking brake, the car is equipped with several automatic brake assistfunctions. These can assist the driver by notneeding to keep his/her foot on the brake pedalwhen stationary at a traffic light, when starting onan uphill gradient or when driving on a downhillgradient. Depending on the car's equipment, the following auto braking functions are available:
• Automatic braking when stationary (AutoHold)
• Hill start assist (Hill Start Assist)
• Auto braking after a collision
• City Safety
Related information
•
Foot brake (p. 406)
• Parking brake (p. 409)
• Hill start assist (p. 412)
• Automatic braking when stationary (p. 412)
• Auto braking after a collision (p. 408)
Foot brake
The foot brake is used to reduce the car's speed while driving.
Foot brake systemThe car is equipped with two brake circuits. If a brake circuit is damaged, the brake pedal willengage deeper. Higher pressure on the pedal willtherefore be needed to produce the normal brak-ing effect. The driver's brake pedal pressure is assisted by a brake servo.
WARNING
The brake servo only works when the engine is running.
If the foot brake is used when the engine is switched off then the pedal will feel stiff and ahigher pedal pressure must be used to brake thecar. In very hilly terrain or when driving with a heavy load the brakes can be relieved by using enginebraking in manual gearshift mode. Engine brakingis most efficiently used if the same gear is useddownhill as up.
Anti-lock braking systemThe car has anti-lock brakes, Anti-lock BrakingSystem (ABS), which prevent the wheels fromlocking while braking and allows maintained steering control. Vibration may be felt in thebrake pedal when this is engaged and this is nor-mal. A short test of the ABS system is made automat- ically after the engine has been started when thedriver releases the brake pedal. A further auto-matic test of the system may be made at lowspeed. The test may be experienced as pulses inthe brake pedal.
Braking on wet roadsWhen driving for a prolonged period of time inheavy rain without braking, the braking effect maybe delayed slightly when next using the brakes.This may also be the case after a car wash. It isthen necessary to depress the brake pedal moreforcefully. You should therefore maintain agreater distance to the vehicles in front. Brake the car firmly after driving on wet roads or using a car wash. This warms up the brake discs,enabling them to dry faster and protecting themagainst corrosion. Bear in mind the current trafficsituation when braking.
Braking on salted roadsWhen driving on salted roads, a layer of salt mayform on the brake discs and brake linings. Thismay extend braking distance. You should there-fore maintain an extra large safety distance tovehicles in front. In addition, make sure you dothe following:

STARTING AND DRIVING
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•
Brake now and again to remove any layer of salt. Make sure that other road users are notput at risk by the braking.
• Gently depress the brake pedal after finish-ing driving and before starting your next trip.
MaintenanceTo keep the car as safe and reliable as possible,follow the Volvo service intervals as specified inthe Service and Warranty Booklet. New and replaced brake linings and brake discs do not provide optimal braking effect until theyhave been "worn in" a few hundred kilometres.Compensate for the reduced braking effect bydepressing the brake pedal harder. Volvo recom-mends only fitting brake linings that are approvedfor your Volvo.
IMPORTANT
The wear on the brake system's components must be checked regularly. Contact a workshop for information about the procedure or engage a workshop to carry outthe inspection - an authorised Volvo work-shop is recommended.
Symbols in the driver display
Symbol
Specification
Check the brake fluid level. If the level is low, fill with brake fluid andcheck for the cause of the brakefluid loss.
Constant glow for 2 seconds when the engine is started: Automaticfunction check. Constant glow for more than 2 seconds: Fault in the ABS system.The car's normal brake system isstill working, but without the ABSfunction.
WARNING
If both the warning lamps for brake fault and ABS fault illuminate at the same time, a faulthas occurred in the brake system.
• If the level in the brake fluid reservoir is normal at this stage, drive carefully to thenearest workshop and have the brakesystem checked - an authorised Volvoworkshop is recommended.
• If the brake fluid is below the
MIN level in
the brake fluid reservoir, do not drive fur-ther before topping up the brake fluid.The reason for the loss of brake fluidmust be investigated.
Related information
• Brake functions (p. 406)
• Brake assistance (p. 408)
• Brake lights (p. 143)
• Emergency brake lights (p. 408)