Daf LF.book - Peterbilt Motors Company

Driving
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In the event of a serious fault, the driving properties of the vehicle
will be affected.
A serious fault is indicated by an acoustic signal and the "STOP"
warning indicator will light up. Stop as soon as possible, park the
vehicle in a safe place and turn off the engine.
Have an authorized Service dealer correct the problem as soon as
possible.
ASR (ANTI SLIP CONTROL)
The vehicle can optionally be fitted with ASR control. ASR is an electronic, air
pressure controlled anti-slip system designed to prevent the driven wheels from
slipping when accelerating. This ensures that the vehicle remains stable when
pulling away on critical road surfaces (especially accelerating when cornering).
Accelerating with ASR gives more traction in comparison to accelerating with
slipping wheels. ASR is an addition to the ABS system. ASR is only located on the
driven wheels. When there is a danger of slipping on one or both wheels, the
relevant wheel(s) will be braked via a magnet valve and/or the engine torque
decreased, using a specific control. This means that one or both wheels are
maintained within a narrow slipping range close to the maximum frictional
coefficient, through which an optimum traction is achieved. If the ASR system is
active, the ASR warning indicator will light up.
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