Volvo V90 Owner's Manual page 288

DRIVER SUPPORT
|| Engine Drag Control
3
Engine Drag Control (EDC ) prevents involuntary
wheel locking, e.g. after shifting down or engine
braking when driving in low gear on slippery road
surfaces.
Involuntary wheel locking while driving can,
amongst other things, impair the driver's ability to
steer the car.
4
Trailer stability assist*
5
Trailer stability assist (TSA ) stabilises a car tow-
ing a trailer in situations where they begin snak-
ing. Also see section "Trailer stability assist" for
more information.
NOTE
The TSA function is deactivated if
Mode is activated.
Related information
Sport mode for electronic stability control
•
(p. 286)
Activating/deactivating Sport mode in Elec-
•
tronic Stability Control (p. 287)
Limitation for sport mode in Electronic Stabil-
•
ity Control (p. 287)
Engine Drag Control
3
4 Trailer stability assist is included when the Volvo genuine towbar is installed.
5 Trailer Stability Assist
6 Electronic Stability Control
Trailer Stability Assist
7
286
Symbols and messages for electronic stabil-
•
ity control (p. 288)
Trailer stability assist* (p. 504)
•
ESC Sport
Sport mode for electronic stability
control
6
The ESC system is always activated — it can-
not be switched off. However, the driver can
ESC Sport Mode
select , which allows for a
more active driving experience.
With the ESC Sport Mode subfunction
selected, intervention from ESC is reduced and
the car is allowed to skid more and greater con-
trol than normal is thus transferred to the driver.
When ESC Sport Mode is selected, ESC can be
considered as deactivated, despite the function
continuing to help the driver in many cases.
NOTE
With the ESC Sport Mode function
selected, Trailer Stability Assist (TSA
deactivated.
ESC Sport Mode also provides maximum trac-
tion if the car has become bogged down or is
driving on a loose surface, such as in sand or
deep snow.
7
) is
* Option/accessory.