brake light VOLVO S90 2017 Owner´s Manual

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Turn Auto-hold on or off by pressing the control in the tunnel console. The indicator light illumi-nates when the function is on. 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
Symbol
Explanation
The symbol in the instrument panel illuminates when this func-tion is using the normal brakes tokeep the vehicle stationary.
A
BThis 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. 350)
• Brake functions (p. 348)
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.
Related information
•Brakes (p. 346)
Braking effect after a collision
In certain types of collisions, the vehicle's brakes are 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. 348)
• Airbag system (p. 65)
• Rear Collision Warning (RCW) (p. 308)

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Emergency brake lightsThe 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. 346)
• Hazard warning flashers (p. 146)
• Brake lights (p. 146)
Hill Start Assist
Hill Start Assist (HSA) helps prevent the vehicle from rolling backwards when starting up a hill. Ifyou are backing up a hill, HSA helps prevent thevehicle from rolling forward.
HSA makes it easier to start or back up on a hill by retaining pressure on the brake pedal for sev-eral seconds after the pedal has been released inorder to keep the vehicle at a standstill. The brakes will be released after several seconds or when the driver presses the accelerator pedal. HSA is available even if the Auto-hold braking function is turned off.
Related information
• Brake functions (p. 348)
• Auto-hold brake function (p. 348)
Parking brake The electric parking brake helps to keep the vehicle stationary when it is parked.
Parking brake control in the tunnel console between the front seats
NOTE
•A faint sound from the parking brake's electric motor can be heard when theparking brake is being applied. Thissound can also be heard during the auto-matic function check of the parkingbrake.
• The brake pedal will move slightly whenthe electric parking brake is applied orreleased.
If the vehicle is not moving when the parking brake is applied, only the rear wheels are affec-

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Parking brake malfunctions
If it has not been possible to apply or release the parking brake after several attempts, consult atrained and authorized Volvo service technicianor retailer.
An audible signal will sound if the parking brake is applied when the vehicle is being driven. If thevehicle must be parked while the parking brake isnot functioning properly: • Put the gear selector in
P.
• If the vehicle is pointing
uphill, turn the front
wheels so that they point away from the curb.
• If the vehicle is pointing
downhill, turn the
front wheels so that they point toward the curb.
• Put the gear selector in
P.
Low battery charge levelIf the battery is discharged, the parking brakecannot be operated. Connect an auxiliary batteryto the vehicle.
Replacing brake padsThe rear brake pads have to be replaced by atrained and authorized Volvo service techniciandue to the design of the electric parking brake.
Symbols in the instrument panel
Symbol Explanation
A
BIf the symbol flashes, a parking brake fault has been detected.See the message in the instru-ment panel.
A
B
Fault in the brake system.
A
US models
B Canadian models
Related information
• Using the parking brake (p. 351)
• Using the parking brake (p. 351)
• Brake functions (p. 348)
• Jump starting (p. 364)
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 thatfuel consumption and the oil level are normal.
• Check for fuel, oil, and fluid leakage.
• 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 drive

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354in countries where it may be difficult to obtain 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). •
Use tires recommended by Volvo for yourvehicle.
• Remove snow tires when threat of snow orice 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 othersare 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 that

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capacity weight or maximum permissible axle loads are not exceeded.
• At the specified curb weight your vehicle hasa tendency to understeer, which means thatthe steering wheel has to be turned morethan 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.
Related information
•ECO drive mode (p. 377)
• Tire inflation pressure table (p. 532)
• Volvo and the environment (p. 15)
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 9 in. (25 cm) at walkingspeed. Be particularly careful when drivingthrough flowing water. • 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.
• Avoid driving through salt water if at all pos-sible to help avoid the risk of corrosion.
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.

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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.

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CAUTION
The maximum trailer weights listed are only applicable for altitudes up to 3,280 ft(1000 m) above sea level. With increasingaltitude the engine power and therefore thecar's climbing ability are impaired because ofthe reduced air density, so the maximumtrailer weight has to be reduced accordingly.The weight of the vehicle and trailer must bereduced by 10% for every further 3,280 ft(1,000 m) (or part thereof). When towing5,000 lbs (2,250 kg) hill inclination is restric-ted to 14%.
WARNING
•Bumper-attached trailer hitches must not be used on Volvos, nor should safetychains be attached to the bumper.
• Trailer hitches attaching to the vehiclerear axle must not be used.
• Never connect a trailer's hydraulic brakesystem directly to the vehicle brake sys-tem, nor a trailer's lighting system directlyto the vehicle lighting system. Consultyour nearest authorized Volvo retailer forcorrect installation.
• When towing a trailer, the trailer's safetychains or wire must be correctly fastenedto the attachment points provided in thetrailer hitch on the vehicle. The safetychain or wire must never be fastened toor wound around the towing ball.
Trailer turn signals and brake lightsIf one (or more) of the bulbs on a trailer is defec-tive, a symbol and a message will be displayed inthe instrument panel. The other lights on the trailer must be checked manually by the driver before the vehicle is driven.See the subsection "Manual check" in the follow-ing section "Trailer lamp check".
Symbol
Message
•Trailer turn indicator Right
turn indicator malfunction
•Trailer turn indicator Left
turn indicator malfunction
•Trailer brake light Malfunc-
tion
If one of the trailer's turn signal bulbs is defective, the turn signal symbol in the instrument panel forthe respective sides of the vehicle will also flashfaster than normal.

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* Option/accessory.371
ModeFunctions available
0 •The odometer, clock and tem- perature gauge are illuminated
• Power seats
* can be adjusted
• The power windows can be oper-ated
• The 12-volt socket in the cargocompartment can be used
• The center display is activatedand can be used
• The infotainment system can beused for a limited time
In this mode, certain functions canonly be used for a limited time to helpminimize battery drain
I •The moonroof
*, power seats */
windows,12-volt sockets in thepassenger compartment, Blue- tooth, navigation system *, climate
system blower, windshield wipers can be operated
• The infotainment system will start(if it was started when the ignitionwas switched off)Mode
Functions available
II •The headlights illuminate
• Warning/indicator lights illumi- nate for 5 seconds
• A number of other functions willalso be activated. However, the heated seats
* and heated rear
window functions can only be activated when the engine is run-ning.
This mode should only be used forvery short periods to help avoiddraining the battery.
Selecting an ignition mode
Start knob in the tunnel console (generic illustration)
• Ignition mode 0
: unlock the vehicle and
keep the remote key in the passenger's com- partment.
NOTE
To access ignition modes I or II without star-
ting the engine, the brake pedal must not be
depressed when these modes are selected.
• Ignition mode I
: Turn the start knob to
START and release it. The knob will return
automatically to its original position.
• Ignition mode II
: Turn the start knob to
START and hold it there for approx.
4 seconds. Release the knob.
• Returning to ignition mode 0
: To return to
mode 0 from mode II or I, turn the start knob
to STOP and release it.
Related information
•Starting the engine (p. 372)
• Turning the engine off (p. 374)

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Battery drain Your vehicle's electrical functions drain the bat- tery to varying extents.
Avoid using ignition mode II as much as posssi-
ble, or electrical functions that require a great deal of electrical current when the engine is notrunning. Using ignition mode I whenever possible con-
sumes less electrical current. Functions that require a great deal of electrical current include:
• the climate system blower
• headlights
• wipers
• infotainment system (especially at high vol-ume).
If the battery's charge level is low, a text messagewill appear in the instrument panel. The vehicle'senergy-saving function will then turn off orreduce certain functions that are currently con-suming electrical current. If the battery needs to be recharged, start the engine and let it idle for at least 15 minutes ordrive the vehicle (driving charges the batteryfaster than letting the engine idle).
Related information
• Ignition modes (p. 370)
Starting the engine
The engine can be started using the start knob on the tunnel console if there is a remote key inthe passenger compartment.
Start knob in the tunnel console between the front seats (generic illustration)
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 2
.
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.
2If the vehicle is moving, it is only necessary to turn the start knob toward START to start the engine.

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CAUTION
• When starting in cold weather, the auto- matic transmission may shift up at slightlyhigher engine speeds than normal untilthe automatic transmission fluid reachesnormal operating temperature.
• Do not race a cold engine immediatelyafter starting. Oil flow may not reachsome lubrication points fast enough toprevent engine damage.
• The engine should be idling when youmove the gear selector. Never accelerateuntil after you feel the transmissionengage. Accelerating immediately afterselecting a gear will cause harsh engage-ment and premature transmission wear.
• Selecting
P or N when idling at a stand-
still for prolonged periods of time will helpprevent overheating of the automatictransmission fluid.
Related information
• Ignition modes (p. 370)
• Turning the engine off (p. 374)
• Changing the remote key's battery (p. 215)
• Jump starting (p. 364)
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. 372)
• Ignition modes (p. 370)
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
• Suspension control
• 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.