Spin Control - Sc; Active Yaw Control - Ayc; Emergency Brake Assistance - Eba - Volvo S40 2005 Owner's Manual

2005 Volvo S40
This function cannot be disabled.

Spin control - SC

The spin control function is designed to help prevent the drive wheels from spinning while the vehicle is
accelerating. This is done by temporarily reducing engine torque to the drive wheels, which helps
improve tractive force.
Under certain circumstances, such as when driving with snow chains, or driving in deep snow or loose
sand, it may be advisable to temporarily disable this function for maximum tractive force. This is done
by pressing the STC/DSTC button (see the illustration on

Active yaw control - AYC

This function helps maintain directional stability, for example when cornering, by braking one or more
of the wheels if the vehicle shows a tendency to skid or slide laterally. A pulsating sound will be audible
when the function is active, which is quite normal. If you apply the brakes while this function is active,
the brake pedal will feel stiffer than usual.
This function cannot be disabled.

Emergency Brake Assistance - EBA

EBA is designed to provide full brake effect immediately in the event of sudden, hard braking. The
system is activated by the speed with which the brake pedal is depressed. When the EBA system is
activated, the brake pedal will go down and pressure in the brake system immediately increases to the
maximum level. Maintain full pressure on the brake pedal in order to utilize the system completely.
EBA is automatically deactivated when the brake pedal is released.
This function cannot be disabled.
pg. 114 Stability system
STC or DSTC button
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