Volvo 2011 S80 Owner's Manual download pdf (Page 156)

04 Comfort and driving pleasure

Stability system

04

156

Introduction

The Dynamic Stability and Traction Control

system (DSTC) consists of a number of func-

tions designed help reduce wheel spin, coun-

teract skidding, and to generally help improve

directional stability.

CAUTION

A pulsating sound will be audible when the

system is actively operating and is normal.

Traction control (TC)

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

opposite side of the vehicle (on the same axle).

TC is most active at low speeds.

This is one of DSTC's permanent functions and

cannot be switched off.

Active Yaw Control (AYC)

This function helps maintain directional stabil-

ity, for example when cornering, by braking

one or more of the wheels if the vehicle shows

a tendency to skid or slide laterally.

This is one of DSTC's permanent functions and

cannot be switched off.

Spin control (SC)

The spin control function is designed to help

prevent the drive wheels from spinning while

the vehicle is accelerating.

Under certain circumstances, such as when

driving with snow chains, or driving in deep

snow or loose sand, it may be advisable to

temporarily switch off this function for maxi-

mum tractive force.

WARNING

The car's handling and stability characteris-

tics will be altered if the spin control function

has been disabled.

Operation

G021409

Temporarily switching off Spin control

1.

Turn the thumbwheel (1) until the DSTC

menu is shown.

2.

Hold down the RESET button (2) to toggle

between

DSTC SPIN CONTROL ON/

OFF

.

Symbols in the instrument panel

If the symbols and are displayed

at the same time, read the message in the

information display.

If the symbol

appears alone, it may

appear as follows:

•

If the symbol flashes, this indicates that the

stability system is actively functioning to

help counteract wheel spin and/or a skid.

•

If the symbol remains on for approximately

2 seconds after the engine has been

started, this indicates that the system is

performing a self-diagnostic test.

WARNING

The stability system is intended to help

improve driving safety. It supplements, but

can never replace, the driver's judgment

and responsibility when operating the vehi-

cle. Speed and driving style should always

be adapted to traffic and road conditions.

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