Volvo 2007 S80 - Manual (Page 121)

04 Comfort and driving pleasure
120
Stability and traction control system
04
General
The stability and traction control system,
DSTC (Dynamic Stability and Traction Con-
trol) helps the driver to avoid skidding and
improves the car’s traction.
The system limits the driving and brake force
of the wheels individually so that skidding
can be avoided. This increases manoeuvra-
bility and as a result safety in the event of
sudden movement.
Traction is improved by means of the system
distributing the driving force between the
wheels. The system primarily engages at low
speed on poor road surfaces.
The activation of the system during braking
may be noticed as a throbbing sound. The
car may accelerate slower than expected
when the accelerator pedal is depressed.
Messages in the information display
DSTC Temporarily OFF – System temporari-
ly reduced due to excessive brake disc tem-
perature. The function is reactivated auto-
matically when the brakes have cooled.
DSTC Service required – System disabled
due to a fault.
Stop the car in a safe place and turn off the
engine. If the message remains when the en-
gine is restarted, drive to an authorised Volvo
workshop.
Symbols in the combined instrument
panel
If the symbols
and are displayed at
the same time, read the message on the in-
formation display.
If the symbol appears alone then it may
appear as follows:
• Flashing light means that the system is
now being activated.
• Constant glow for 2 seconds means sys-
tem check when the engine is started.
• Constant glow after starting the engine or
while driving means system fault.
Reduced operation
System operation during skidding and accel-
eration can be reduced. Operation during
skidding is delayed and so allows more skid-
ding which provides greater freedom for dy-
namic driving. Traction in deep snow or sand
is improved as traction is no longer limited.
Operation
1. Turn the thumbwheel until the DSTC
menu is shown.
DSTC ON means that the system function is
unchanged.
DSTC spin control OFF means that system
operation is reduced.
2. Press and hold RESET until the DSTC
menu is changed.
The system remains reduced until the engine
is next started.
WARNING
The car’s driving characteristics may deteri-
orate if the function is reduced.
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