DRIVER SUPPORT
* Option/accessory, for more information, see Introduction.
243
Electronic Stability Control (ESC)
Electronic Stability Control (ESC) helps reduce
wheel spin, counteract skidding and to generally
help improve directional stability.
A pulsating sound will be audi-
ble when the system is actively
operating and is normal. Accel-
eration may also be slightly
slower than normal.
WARNING
ESC is a supplementary aid and cannot deal
with all situations or road conditions.
The driver is always responsible for operating
the vehicle in a safe manner in accordance
with current traffic regulations.
ESC consists of the following functions:
•
Traction control
•
Spin control
•
Active Yaw Control
•
Engine Drag Control
•
Trailer Stability Assist
Traction control
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 oppo-
site side of the vehicle (on the same axle).
Spin control
This function is designed to help prevent the
drive wheels from spinning while the vehicle is
accelerating.
Active Yaw Control
At low speeds, this function helps maintain direc-
tional stability by braking one or more of the
wheels if the vehicle shows a tendency to skid or
slide laterally.
Engine Drag Control EDC
EDC helps keep the engine running if the wheels
show a tendency to lock, e.g., when shifting down
in the manual shifting mode or while using the
engine's braking function on a slippery surface. If
the wheels were to lock, the vehicle would
become more difficult to steer.
Trailer Stability Assist
*
1
TSA helps stabilize a vehicle that is towing a
trailer when the vehicle and trailer have begun to
sway.
This system is automatically deactivated if the
driver selects
Sport
mode.
Related information
•
Detachable trailer hitch (p. 378)
•
Driving with a trailer (p. 376)
•
Trailer Stability Assist (TSA) (p. 379)
•
Electronic Stability Control (ESC) sport mode
(p. 244)
•
Electronic Stability Control (ESC) symbols
and messages (p. 245)
1
This function is included if the vehicle is equipped with a Volvo original trailer hitch.
Summary of Contents for S 90
Page 1: ...OWNER S MANUAL ...
Page 2: ......
Page 13: ...11 INDEX Index 535 ...
Page 14: ......
Page 15: ...INTRODUCTION ...
Page 57: ...SAFETY ...
Page 94: ......
Page 95: ...INSTRUMENTS AND CONTROLS ...
Page 177: ...CLIMATE ...
Page 201: ...LOADING AND STORAGE ...
Page 212: ......
Page 213: ...LOCKS AND ALARM ...
Page 242: ......
Page 243: ...DRIVER SUPPORT ...
Page 357: ...STARTING AND DRIVING ...
Page 401: ...INFOTAINMENT ...
Page 447: ...WHEELS AND TIRES ...
Page 468: ......
Page 469: ...MAINTENANCE AND SERVICING ...
Page 489: ...MAINTENANCE AND SERVICING 487 ...
Page 521: ...SPECIFICATIONS ...
Page 523: ...SPECIFICATIONS 521 Location of labels ...
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