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07 Driver support
07
* Option/accessory, for more information, see Introduction.
191
Electronic stability control (ESC) -
general
Stability system ESC (Electronic Stability
Control) helps the driver to avoid skidding and
improves the car's traction.
The activation of the ESC system
during braking may be noticed as a
throbbing sound. The car may
accelerate slower than expected
when the accelerator pedal is depressed.
WARNING
The stability system ESC is supplementary
assistance - it cannot handle all situations
in all road conditions.
The driver always bears responsibility that
the vehicle is driven safely and that appli-
cable road traffic rules and regulations are
followed.
The ESC system consists of the following
functions:
•
Active Yaw Control
•
Spin Control
•
Traction control system
•
Engine drag control - EDC
•
Corner Traction Control - CTC
•
Trailer Stability Assist - TSA
Active Yaw Control
The function checks the driving and brake
force of the wheels individually in order to
stabilise the car.
Spin Control
The function prevents the driving wheels from
spinning against the road surface during
acceleration.
Traction control system
The function is active at low speed and trans-
fers power from the driving wheel that is spin-
ning to the one that is not.
Engine drag control - EDC
EDC (Engine Drag Control) prevents involun-
tary wheel locking, e.g. after shifting down or
engine braking when driving in low gears on
slippery road surfaces.
Involuntary wheel locking while driving can,
amongst other things, impair the driver's abil-
ity to steer the car.
Corner Traction Control - CTC*
CTC compensates for understeer and allows
higher than normal acceleration in a bend
without wheelspin on the inner wheel, e.g. on
an arcing motorway entrance road to quickly
reach the prevailing traffic speed.
Trailer Stability Assist* - TSA
1
Trailer stability assist (p. 326) function is to
stabilise the car and trailer combination if it
begins to snake. For more information, see
Driving with a trailer* (p. 319).
NOTE
The function is deactivated if the driver
selects Sport mode.
Related information
•
Electronic stability control (ESC) - opera-
tion (p. 192)
•
Electronic stability control (ESC) - sym-
bols and messages (p. 193)
1
Trailer Stability Assist is included in the installation of Volvo genuine towbar.
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