Mack TerraPro LEU 2010, Operator'S Handbook Manual

Page: 125 / 225

114 OPERATION
CRUISE CONTROL OPERATION
Note:
Effective August 2008, a change was made to the vehicle software which
requires the vehicle operator to press and release the brake pedal after the engine
has been started. If the brake pedal is not depressed after starting the engine, cruise
control will not function.
Speed Control Switches
Resume/Set Switch — Allows the driver to set and resume cruise control.
Note: In most cases, the Speed Control switch must be in the ON position in order
to use the Resume/Set switch. However, when the Initial Set Using Resume Switch
feature is enabled, cruise control can be activated using the Resume/Set switch.
The Resume/Set switch also functions as the Accel/Decel switch. Usually the
Resume position (press the top) corresponds to an increase in engine speed
(Accel) and the Set position (press the bottom) corresponds to a decrease in
engine speed (Decel).
Note: Under specific circumstances this switch can also be used to activate cruise
control. For details concerning the Initial Set Using Resume Switch feature, refer to
the
V-MAC Support Software User’s Guide .
Speed Control Switch — Activates the cruise control system.
At the desired speed, press and release the Resume/Set switch. This speed
is now programmed and will be automatically maintained.
Note: To increase the engine speed, press and hold the Accel switch until the desired
speed is attained, or press the accelerator pedal until the desired speed is attained
and then press and release the Set switch.