start stop button VOLVO XC60 2010 Owner´s Manual

04 Comfort and driving pleasure
Stability system
04
156
Introduction
The Dynamic Stability and Traction Control
system (DSTC) consists of a number of func-
tions designed help reduce wheel spin, coun-
teract skidding, and to generally help improve
directional stability.
CAUTION
A pulsating sound will be audible when the
system is actively operating and is normal.
Traction control (TC)This function is designed to help reduce wheel
spin by transferring power from a drive wheel
that begins to lose traction to the wheel on the
opposite side of the vehicle (on the same axle).
TC is most active at low speeds.
This is one of DSTC's permanent functions and
cannot be switched off.
Active Yaw Control (AYC)This function helps maintain directional stabil-
ity, for example when cornering, by braking
one or more of the wheels if the vehicle shows
a tendency to skid or slide laterally.
This is one of DSTC's permanent functions and
cannot be switched off.
Spin control (SC)The spin control function is designed to help
prevent the drive wheels from spinning while
the vehicle is accelerating.
Under certain circumstances, such as when
driving with snow chains, or driving in deep
snow or loose sand, it may be advisable to
temporarily switch off this function for maxi-
mum tractive force.
WARNING
The car's handling and stability characteris-
tics will be altered if the spin control function
has been disabled.
Operation
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Temporarily switching off Spin control1.
Turn the thumbwheel until the DSTC
menu is shown.
2.
Hold down the RESET button
to toggle
between
DSTC SPIN CONTROL ON or
OFF.
Messages in the information display
DSTC Temporarily OFF – system function
has been temporarily reduced due to high
brake disc temperature. The function is acti-
vated automatically when the brakes have
cooled.
DSTC Service required – the system has
been disabled due to a fault. If this occurs:
1. Stop the vehicle in a safe place and turn off
the engine.
2. Restart the engine.
If the message remains when the engine is
restarted, drive to an authorized Volvo work-
shop to have the system inspected.
Symbols in the instrument panel
If the symbols and are displayed
at the same time, read the message in the
information display.
If the symbol
appears alone, it may
appear as follows:

04 Comfort and driving pleasure
City Safety™
04
168
driver is always responsible for main-
taining a safe distance to the vehicle
ahead.
Function
Location of the laser sensor in the windshield
City Safety™ monitors traffic ahead of you
using a laser sensor mounted in the upper sec-
tion of the windshield. If a collision is imminent,
City Safety™ will automatically apply the
brakes at approximately 50% of the vehicle’s
full braking effect if you are traveling at speeds
between 2-18 mph (4-30 km/h).
•If the difference in speed between your
vehicle and the vehicle ahead is less than
approximately 9 mph (15 km/h), CitySafety™ can help prevent a collision from
taking place.
•If the difference in speed is between
approximately 10-18 mph (16-30 km/h),
City Safety™ alone cannot avoid a colli-
sion. The driver must apply the brakes for
full braking effect.
When the function activates and applies the
brakes, a message will appear in the informa-
tion display to indicate that the system is/has
been active.
NOTE
•When City Safety™ applies the brakes,
the brake lights will illuminate.
•In cases where City Safety™ has stop-
ped the vehicle, the system will then
release the brakes. The driver must
apply the brakes to keep the vehicle at
a standstill.
Using City Safety™
NOTE
The City Safety™ function is activated auto-
matically each time the engine has been
switched off and restarted.
On and OffIn certain situations, it may be desirable to
switch City Safety™ off, such as when driving
in close quarters where leaves, branches, etc.
may obscure the hood and windshield.
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Display and turn signal lever
Thumb wheel
RESET button
When the engine is running, City Safety™ can
be switched off as follows:

04 Comfort and driving pleasure
City Safety™
04

169
1.
Use the thumb wheel to scroll until City
Safety is displayed.
2.
Press the RESET button for approximately
1 second until
Off is displayed.
WARNING
The laser sensor emits light when the igni-
tion is in mode II or higher, even if City
Safety™ has been switched off.
To switch City Safety™ on again:
•Follow the same procedure as for switch-
ing City Safety™ off but select On by
pressing RESET.
or
•Vehicles not equipped with keyless
drive: Press lightly on the remote key to
release it partially from the ignition slot.
Press the remote key into the ignition slot
again. Depress the brake pedal and press
the START/STOP ENGINE button to start
the engine. This restarts City Safety™.
•Vehicles equipped with the optional
keyless drive: Press the START/STOP
ENGINE button to switch off the engine.
Depress the brake pedal and press the
START/STOP ENGINE button to start the
engine. This restarts City Safety™.
See page 79 for information on ignition modes.City Safety™ will be automatically switched on
the next time the engine is started, even if it was
off when the engine was switched off.
Limitations
The sensor used by City Safety™ is designed
to detect cars and other larger motor vehicles
ahead of your vehicle in both daylight and dark-
ness.
However, there are certain limitations and the
laser sensor’s function may be reduced by, for
example, heavy rain or snowfall, or by dense
fog or thick, blowing dust or snow. Condensa-
tion, dirt, ice or snow on the windshield may
also interfere with the sensor’s function.
Objects such as warning flags hanging from
long objects on the roof or accessories such as
auxiliary lights or protective arches on the front
of the vehicle that are higher than the hood may
also impede the sensor’s function.
Braking distance to the vehicle ahead increa-
ses on slippery road surfaces, which may
reduce City Safety’s capacity to avoid a colli-
sion. In situations like this, the DSTC system
(see page 156) will help provide the best pos-
sible braking capacity and stability.
City Safety™ emits infrared light and measures
the way in which the light is reflected. There-
fore, vehicles or objects with low-reflective sur-faces may not be detected. Normally, the
license plate and taillight reflectors give the
rear section of a vehicle ahead sufficient reflec-
tive surfaces to be detected.NOTE
•Keep the windshield in front of the laser
sensor free of ice, snow, dirt, etc. See
page 168.
•Snow or ice on the hood deeper than
2 inches (5 cm) may obstruct the sen-
sor. Keep the hood free of ice and snow.
•Do not mount or in any way attach any-
thing on the windshield that could
obstruct the laser sensor.
Troubleshooting
If Windshield sensors blocked appears in
the information display, this indicates that the
City Safety™ laser sensor is obstructed in
some way and cannot detect vehicles ahead of
you, which means that the system is not func-
tioning.
However, this message will not be displayed in
all situations in which the sensor is obstructed.
For this reason, the driver must ensure that the
area of the windshield in front of the sensor is
always kept clean.

06 Maintenance and specifications
Replacing bulbs
06

235
NOTE
•Always switch off the ignition before
starting to replace a bulb.
•The optional Active Bending Light bulbs
contain trace amounts of mercury.
These bulbs should always be disposed
of by a trained and qualified Volvo serv-
ice technician.
Removing the headlight housing1. Switch off the ignition by pressing quickly
on the START/STOP ENGINE button and
remove the remote key from the ignition
slot
1.
2. (Upper illustration under "Headlight hous-
ing")
Withdraw the headlight housing's lock-
ing pins.
Pull the headlight housing straight out .
CAUTION
When disconnecting the connector, pull on
the connector itself and not on the wiring.
3. (Lower illustration under "Headlight hous-
ing")
Unplug the wiring connector by holding
down the clip with your thumb.
Pull out the connector with the other
hand.
4. Lift out the housing and place it on a soft
surface to avoid scratching the lens.
5. Replace the defective bulb(s).
Reinserting the headlight housing
When reinserting the housing, be sure that the
long locking pin (to the left in the illustration) is
securely in place in both of its retaining clamps.
1. Plug in the connector until it clicks into
place.2. Reinstall the headlight housing and locking
pins. Check that they are correctly
inserted. The headlight housing must be
properly inserted and secured in place
before the lighting is switched on or the
remote key is inserted into the ignition slot.
3. Check that the lights function properly.
The headlight wiring must be connected and
the housing must be securely in place before
the ignition is switched on.
Removing the cover to access the
headlights and parking lights
1Does not apply to vehicles with the optional keyless drive.

06 Maintenance and specifications
Fuses
06
252* Option/accessory, for more information, see Introduction.
FunctionA
Overhead courtesy lighting,
Control panel driver's door/
Power passenger seat*7.5
Information display5
Power driver's seat*5
Tailgate wiper15
Remote key receiver, Alarm
sensors5
Fuel pump20
Electric steering column lock20
–
Lock, tank/tailgate10
Alarm siren. ECC5
START/STOP ENGINE button5
Brake light switch5