2017 VOLVO S60 four wheel drive

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.
166
Active chassis * (Four C)
Active chassis, Four-C (Continuously Controlled Chassis Concept), regulates the characteristicsof the shock absorbers so that the vehicle's driv-ing characteristics can be adjusted. There arethree settings: Comfort, Sport and Advanced.
Operation
Chassis settings
Use the buttons in the center console to change setting. The setting in use when the engine isswitched off is activated the next time the engineis started.
Comfort
Comfort mode offers a somewhat softer ride and the transmission shifts gears at lower rpm. Thismode is particularly suitable for long-distancehighway driving. The indicator light in the buttonwill be on when this mode is selected.
Sport
In this mode, the vehicle's body sway is reduced during cornering and steering response is moreimmediate. The transmission shifts up at higherrpm for sportier driving. The indicator light in thebutton will be on to indicate that Sport mode hasbeen selected.
Advanced
In this mode, body sway in curves is minimal and steering response is very direct. Gear shifting isdone at high rpm in each gear for dynamic andactive driving.
Related information
• Adjustable steering force
* (p. 171)
Stability system – introduction The Electronic Stability Control (ESC) system consists of a number of functions designed tohelp reduce wheel spin, counteract skidding andto generally help improve directional stability.
A pulsating sound will be audible when the system is actively operating and isnormal. Acceleration will also beslightly slower than normal.
WARNING
ESC is a supplementary aid and cannot deal with all situations or road conditions. The driver is always responsible for operating the vehicle in a safe manner in accordancewith current traffic regulations.
ESC consists of the following functions: • Traction control
• Spin control
• Active Yaw Control
• Engine Drag Control
• Corner Traction Control
Traction Control (TC)
This function is designed to help reduce wheel spin at low speeds by transferring power from adrive wheel that begins to lose traction to thewheel on the opposite side of the vehicle (on thesame axle).

DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.171
Adjustable steering force*
Steering force increases with the speed of the vehicle to give the driver enhanced sense ofcontrol and stability. At low speed the vehicle iseasy to steer in order to facilitate parking, etc.
Adjustable steering force *Steering force can be changed under MY CAR
Car settingsSteering wheel force.
Select Low, Medium or High. For a description
of the menu system, My Car – introduction (p. 71).
NOTE
This steering force level menu function can- not be accessed when the vehicle is inmotion.
NOTE
In certain situations, the power steering may become too warm and will have to be tempo-rarily cooled down. While this is happening,the power steering effect will be reducedslightly and somewhat more effort may berequired to turn the steering wheel. If this occurs, a message will be displayed in the instrument panel.
Related information
• Active chassis
* (Four C) (p. 166)
Road Sign Information (RSI) * –
introduction
RSI is a feature that helps the driver see road signs with the posted speed limit.
Introduction
Examples of readable road signs
If the vehicle passes a sign showing the speed limit, this will be displayed in the center console.
WARNING
RSI does not function in all situations and is only intended to provide supplementary infor-mation. The driver is always responsible for operating the vehicle safely.
Related information
• Road Sign Information (RSI) – operation (p. 172)
• Road Sign Information (RSI) – limitations(p. 172)

WHEELS AND TIRES
303
1.
215 : the width of the tire (in millimeters)
from sidewall edge to sidewall edge. The larger the number, the wider the tire.
2. 65: The ratio of the tire's height to its width
in percent.
3. R: Radial tire (the designation RF and the
symbol indicate that the vehicle is
equipped with optional self-supporting run flat tires 4
.
4. 15: The diameter of the wheel rim (in
inches).
5. 95: The tire's load index. In this example, a
load index of 95 equals a maximum load of 1521 lbs (690 kg).
6. H: The tire's speed rating, or the maximum
speed at which the tire is designed to bedriven for extended periods of time, carryinga permissible load for the vehicle, and withcorrect inflation pressure. For example, Hindicates a speed rating of 130 mph(210 km/h).
NOTE
The tire's load index and speed rating may not appear on the sidewall because they arenot required by law.
7. M+S or M/S = Mud and Snow, AT = All Ter-
rain, AS = All Season
8. U.S. DOT Tire Identification Number (TIN) : This begins with the letters "DOT" and
indicates that the tire meets all federalstandards. The next two numbers or lettersare the plant code where it was manufac-tured, the next two are the tire size code andthe last four numbers represent the weekand year the tire was built. For example,1510 means that the tire was manufacturedduring week 15 of 2010. The numbers inbetween are marketing codes used at themanufacturer's discretion. This informationhelps a tire manufacturer identify a tire forsafety recall purposes.
9. Tire Ply Composition and MaterialUsed : Indicates the number of plies indi-
cates or the number of layers of rubber-coated fabric in the tire tread and sidewall.Tire manufacturers also must indicate the plymaterials in the tire and the sidewall, whichinclude steel, nylon, polyester, and others.
10. Maximum Load : Indicates the maximum
load in pounds and kilograms that can becarried by the tire. Refer to the vehicle's tireinformation placard located on the B-Pillarfor the correct tire pressure for your vehicle. 11.
Treadwear, Traction, and Temperaturegrades : see Tire specifications – Uniform
Tire Quality Grading (p. 306) for more infor-mation.
12. Maximum permissible inflationpressure: the greatest amount of air pres-
sure that should ever be put in the tire. Thislimit is set by the tire manufacturer.
4 Self-supporting run flat tires may not be available on all models

WHEELS AND TIRES
308
Snow tires/studded tires5
Owners who live in or regularly commute through areas with sustained periods of snow oricy driving conditions are strongly advised to fitsuitable winter tires to help retain the highestdegree of traction.
Tires for winter use:
• It is important to install winter tires on all four wheels to help retain traction during corner-ing, braking, and accelerating. Failure to doso could reduce traction to an unsafe level oradversely affect handling.
• Do not mix tires of different design as thiscould also negatively affect overall tire roadgrip.
• Winter tires wear more quickly on dry roadsin warm weather. They should be removedwhen the winter driving season has ended.
• Studded tires should be run-in 300 – 600 miles (500 – 1000 km) during whichthe vehicle should be driven as smoothly aspossible to give the studs the opportunity toseat properly in the tires. The tires shouldhave the same rotational direction through-out their entire lifetime.
NOTE
Please consult state or provincial regulations restricting the use of studded winter tiresbefore installing such tires.
Tire pressure monitoring - overview
Volvo provides two different systems to monitor tire pressure: Tire Pressure Monitoring System(TPMS) or Tire Monitor.
Determining which tire monitoring system is in your vehicle
To see which system is installed in your vehicle, press the MY CAR button on the center console.
Go to
SettingsCar settings.
• If your vehicle has a menu called
Tire
monitoring, see Tire Monitor - introduction
(p. 309).
• If your vehicle has a menu called
Tire
pressure, see Tire Pressure Monitoring Sys-
tem (TPMS) – general information (p. 312).
Introduction
Each tire, including the spare 6
(if provided),
should be checked monthly when cold and infla- ted to the inflation pressure recommended by thevehicle manufacturer on the vehicle placard ortire inflation pressure label. (If your vehicle hastires of a different size than the size indicated onthe vehicle placard or tire inflation pressure label,you should determine the proper tire inflationpressure for those tires.) As an added safety feature, your vehicle has been equipped with a tire pressure monitoring
5 Where permitted
6 Available as an accessory

WHEELS AND TIRES
}}
311
Tire Monitor status informationThe current status of the system and the tires is indicated by color-coded graphics.
This status can be displayed by pressing the MY
CAR button on the center console and going to
SettingsCar settingsTire monitoring.
The following color-coded graphics indicate:
• All green
: the system is operational and all
tire pressures are at or above the recom- mended levels.
• One yellow wheel
: the tire indicated is
under-inflated.
• All wheels yellow
: two or more tires are
under-inflated
• All wheels gray
: the system is currently
unavailable. It might be necessary to drive ata speed of at least 20 mph (30 km/h) forseveral minutes for the system to becomeoperational.
• All wheels gray in combination with the message
Tire press. syst Service
required and the telltale in the instru-
ment panel (
) is illuminated : the sys-
tem is not functioning correctly. Have it checked by a trained and qualified Volvoservice technician.
• All wheels gray in combination with the message
Tire press. syst currently
unavailable and the telltale in the instru- ment panel (
) is illuminated
: the sys-
tem is temporarily unavailable. It should become operational again shortly.
Related information
• Tire Monitor – messages (p. 311)
Tire Monitor – messages
When low tire pressure has been detected, a message will be displayed and the tire pressure warning telltale in the instrument panel (
)
will illuminate.
MessagesIf the telltale illuminates, one of the following message will also be displayed: •
Tire pressure low/Check, adjust and
calibrate
•Tire pressure system/Service required
•Tire pressure system/Currently
unavailable
Erasing warning messagesTo erase a low tire pressure message and turn off the telltale:
1. Use a tire pressure gauge to check the infla- tion pressure of all four tires.
2. Re-inflate the tires to the correct pressure (consult the tire pressure decal on the driv- er's door opening.
3. Recalibrate Tire Monitor, see Calibrating Tire Monitor (p. 310).

WHEELS AND TIRES
315
Tire Pressure Monitoring System (TPMS) – messages
Erasing warning messagesWhen a low tire pressure warning message has been displayed and the tire pressure warning light in the instrument panell (
) has come
on:
1. Use a tire pressure gauge to check the infla- tion pressure of all four tires.
2. Re-inflate the tire(s) to the correct pressure (consult the tire pressure decal on the driv- er's door opening).
3. In certain cases, it may be necessary to drive the vehicle for several minutes at a speed of20 mph (30 km/h) or faster. This will erasethe warning text and the telltale will go out.
NOTE
• The tire monitoring systems use a tem- perature compensated pressure value.This pressure value is dependent on tiretemperature and ambient temperature,which can differ from the recommendedcold tire pressure in the tire inflation tableand on the tire pressure placard locatedon the driver's side B-pillar (the structuralmember at the side of the vehicle, at therear of the driver's door opening). Thismeans that it may sometimes be neces-sary to inflate them slightly above therecommended cold pressure value(approx. 3-4 psi or 0.2-0.3 bar) in orderto reset a low tire pressure warning.
• To help avoid incorrect tire inflation pres-sure, if possible only inflate the tireswhen they are cold. The tires are consid-ered to be cold when they have the sametemperature as the surrounding (ambi-ent) air. This temperature is normallyreached after the vehicle has beenparked for at least 3 hours. After driving adistance of approximately 1 mile (1.6 km),the tires are considered to be hot.
CAUTION
•
After inflating the tires, always reinstall the valve cap to help avoid damage to thevalve from dirt, gravel, etc.
• Use plastic valve caps only. Metal capscould corrode and become difficult toremove.
WARNING
•Incorrect inflation pressure could lead to tire failure, resulting in a loss of control ofthe vehicle.
• Tire monitoring systems cannot indicatesudden tire damage caused by externalfactors (e.g., a blowout) in advance.
Related information
•Tire Pressure Monitoring System (TPMS) – general information (p. 312)
• Tire Pressure Monitoring System (TPMS) –recalibrating (p. 314)
• Tire Pressure Monitoring System (TPMS) –activating/deactivating (p. 314)
• Tire Pressure Monitoring System (TPMS) –changing wheels (p. 313)
• Tire pressure monitoring - overview (p. 308)