2009 VOLVO XC70 reset

04 Comfort and driving pleasure
Stability system
04``155 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
G021409
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 displayDSTC 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 panelIf the symbols
and
are dis-
played at the same time, read the message in
the information display.

04 Comfort and driving pleasureCruise control
04158
Operation
G022910
Steering wheel-mounted controls and display
Standby modeResume set speedDeactivatingActivate/set speedSet speed indicator (parentheses indicate
standby mode)
Engaging the cruise control functionBefore a speed can be set, the cruise control
system must be engaged (put in standby
mode).
±
Press the CRUISE button (1).>
The symbol
illuminates and the text
(---) mph
(5) indicates that cruise con-
trol is in standby mode.
NOTE
This does not set the vehicle's speed.Setting a speedUse the
or
buttons set the vehicle's cur-
rent speed. The set speed is shown in the
display.
NOTE
Cruise control cannot be engaged at
speeds below 20 mph (30 km/h).Adjusting the set speedAfter a speed has been set, it can be increased
or decreased by using the
or
buttons.
1.
Press and hold down
or
until the
vehicle reaches the desired speed.
> This will become the set speed when the
button is released.
2.
Press
or
for approximately a half
second and release the button to increase
or decrease vehicle speed by approxi-
mately 1 mph (1.6 km/h).
NOTE
•
A temporary increase in speed by
pressing the accelerator pedal, for less
than 1 minute (e.g. when passing
another car), does not affect the current
cruise control setting. The vehicle will
automatically return to the previously
set speed when the accelerator pedal is
released.
•
If one of the cruise control buttons is
kept depressed for more than approx.
1 minute cruise control is disengaged.
The engine must then be switched off in
order to reset cruise control.
Automatic deactivationCruise control is automatically deactivated
temporarily if one of the following occurs:•
If the speed drops below approximately
20 mph (30 km/h).
•
When the brake pedal is depressed.
•
If the gear selector is moved to position N.
•
During wheel spin or wheel lock-up.
•
If the vehicle's speed is increased by using
the accelerator pedal for more than 1
minute.
The currently set speed will be saved in the
system's memory.

04 Comfort and driving pleasureAdaptive Cruise Control–ACC (option)
04168
Operation
G027123
Controls and display
Activate and resume settings, increase
speedStandby mode, on/offSet time intervalActivate and set a speedSet speed (parentheses indicate standby
mode)Time interval while it is being setTime interval after it has been set
Engaging the cruise control functionBefore ACC can be used, it must first be put in
standby mode. To do so, press
. The symbol
illuminates in the display and (---) indicate
that ACC is in standby mode.Setting a speedUse the
or
buttons to store (set) the
vehicle's current speed. The set speed, for
example 55 mph, is shown in the display.
NOTE
Adaptive cruise control cannot be engaged
at speeds below 20 mph (30 km/h).
The “car” symbol illuminates
on the left side of the display
when the radar sensor
detects another vehicle
ahead. The distance to a vehi-
cle ahead is only regulated
when this symbol is illumi-
nated.
Adjusting the set speedAfter a speed has been set, it can be increased
or decreased by using the
or
buttons.
When the system is in active mode, the
but-
ton has the same function as
, but results in
a smaller increase in speed.
NOTE
•
If one of the adaptive cruise control but-
tons is pressed for more than approxi-
mately one minute, ACC will be deacti-
vated. The engine must then be
switched off and restarted to reset ACC.
•
In some situations cruise control cannot
be activated.
Cruise Control
Unavailable is shown in the display,
see page 171.
Setting a time intervalThe set time interval to vehicles ahead is
increased with
and decreased with
.
The current time interval is shown briefly in the
display following adjustment.
Five different time intervals
can be selected and are
shown in the display as 1–5
horizontal bars. The greater
the number of bars, the longer
the time interval. At low
speeds, when the distance to
the vehicle ahead is short, ACC increases the
time interval slightly. In order to follow the vehi-
cle ahead as smoothly as possible, ACC allows
the time interval to vary considerably in certain
situations.

04 Comfort and driving pleasure
Blind Spot Information System (option)
04
187
switched off, and a text message is dis-
played.
•
BLIS can be switched on again by pressing
the button. The indicator light in the button
will illuminate and a new text message will
be displayed. Press the READ button (see
page 121) to erase the message.
BLIS system messagesText in the dis-
play
System status
Blind spot syst.
service required
BLIS not functioning
properly. Contact an
authorized Volvo
service technician.
Blind spot syst.
camera blocked
BLIS camera
obscured. Clean the
lenses.
Blind-spot info
system ON
BLIS system on
Text in the dis-
play
System status
Blind-spot info
system off
BLIS system off
Blind spot syst.
reduced function
The BLIS cameras'
function has been
reduced by e.g., fog,
or strong sunlight
directly into the
camea. The camera
will reset itself when
these conditions
have changed. have
been function
reduced