Stability System - Volvo C70 Owner's Manual

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06 Starting and driving

Stability system

Dynamic Stability Traction Control
(DSTC)
The stability system consists of a number of
functions designed help reduce wheel spin,
counteract skidding, and to generally help
improve directional stability.
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 the stability system's perma-
06
nent functions and cannot be switched off.
138
Controls on the left-side steering wheel lever
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.
Temporarily switching off Spin control
1. Turn the thumbwheel (A) on the left-side
steering wheel lever until the DSTC menu
is displayed.
2. Hold down the RESET button (B) to
toggle between
DSTC SPIN CONTROL
ON
or OFF.
NOTE
• The message
DSTC SPIN CONTROL
OFF
indicates that the stability system's
spin control function has temporarily been
switched off.
• The stability control indicator light
will illuminate and remain on until spin con-
trol has been reactivated.
• The spin control function is automatically
enabled each time the engine is started.
DSTC ON
indicates that all system func-
tions are active.
Active yaw control - AYC
This function helps maintain directional sta-
bility, for example when cornering, by brak-
ing one or more of the wheels if the vehicle
shows a tendency to skid or slide laterally.
This is one of the stability system's perma-
nent functions and cannot be switched off.
WARNING
The car's handling and stability characteris-
tics will be altered if the DSTC system func-
tions have been disabled.

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