Volvo XC90 Owner's Manual page 280

DRIVER SUPPORT
|| Spin control and active yaw control
This function is active at low speeds and brakes
the wheels that are spinning to transfer additional
power from wheels that are not spinning.
This function also helps prevent the wheels from
spinning while the vehicle is accelerating.
Engine drag control
3
Engine drag control (EDC ) helps prevent inad-
vertent wheel lock, e.g. after downshifting or
using engine braking when driving at low speeds
on a slippery surface.
Inadvertent wheel lock while driving could impair
the driver's ability to steer the vehicle.
Trailer Stability Assist*
5
Trailer Stability Assist (TSA
stabilize a vehicle that is towing a trailer if the
vehicle and trailer have begun to sway.
NOTE
Trailer Stability Assist is deactivated if
Sport Mode
is activated.
3 Engine Drag Control
4 Trailer Stability Assist is included if the vehicle is equipped with a Volvo original towbar.
5 Trailer Stability Assist
6 Electronic Stability Control
Trailer Stability Assist
7
278
Related information
• Driver support systems (p. 276)
• Activating/deactivating Sport mode for Elec-
tronic Stability Control (p. 279)
• Electronic Stability Control symbols and mes-
sages (p. 280)
•
Trailer Stability Assist* (p. 436)
4
) is designed to help
ESC
Electronic Stability Control in sport
mode
6
The stability system (ESC ) is always activated
and cannot be switched off. However, the driver
ESC Sport Mode
can select , which offers more
active driving characteristics.
ESC Sport Mode
With the sub-function
selected, intervention from the system is reduced
and more lateral movement is permitted, giving
the driver more control of the vehicle than usual.
ESC Sport Mode
When is selected, the func-
tion may seem to be disabled even though it con-
tinues to assist the driver.
NOTE
ESC Sport Mode
When is selected, the
7
trailer stabilizer (TSA ) is switched off.
ESC Sport Mode
also helps provide maximum
traction if the vehicle gets stuck or is driving on a
loose surface such as deep snow or loose sand.
ESC Sport Mode
The function cannot be
selected when any of the following functions are
activated:
* Option/accessory.