Ford F-650 Owner's Manual page 136

Traction Control
Press the switch again to enable the
traction control system.
System Indicator Light
Note: If the traction control light does not
flash during a traction control event or stays
illuminated, the system is not functioning
properly. Take your vehicle to an authorized
dealer for service.
During traction control operation, the
traction control light flashes rapidly and
the engine does not rev-up when you press
further on the accelerator. This is normal
and is no reason for concern.
When traction control is disabled, the
traction control light illuminates and
flashes slowly.
133
I n f o r ma t i o n P r o v i d e d b y :
F650750 (TBC), enUSA, First Printing