transmission will shift automatically through the for-
ward gears.
If driving conditions require, it is still possible to re-
quest a manual shift. The transmission will make the
shift unless the selected gear would cause engine
overspeed.
If the driver presses down on the throttle pedal after
a manual downshift in automatic mode, the transmis-
sion will upshift again if the TCU requires it.
On downgrades, the transmission holds the current
gear until the driver requests a shift, or presses the
throttle pedal.
WARNING
While driving off-road or with locked differential
in AUTO mode, use extra caution. Shifts of the
AGS could interrupt power to the drive wheels,
causing a rollback accident while climbing steep
grades at low speeds. A rollback accident could
cause death, serious personal injury, or property
damage.
Manual Mode (MAN)
Manual mode may be required under certain condi-
tions, such as:
•
In difficult or slippery conditions
•
On hills, steep grades, or other situations
where driveline torque interruption is not desir-
able
•
During off-road driving or driving with a locked
differential
•
In downhill driving where control of engine
braking is needed
•
If necessary to hold a specific gear on a down-
grade
In manual drive mode (MAN), upshifts and down-
shifts are made by the driver:
•
To shift up, pull the lever up (towards you).
•
To shift down, push the lever down (away from
you).
The system will hold the current gear until the driver
requests a shift. In downhill situations in particular,
the driver must be alert to vehicle speed and main-
tain vehicle control by downshifting and/or using the
service brakes as needed.
When braking or slowing in MAN, downshift as nec-
essary to prevent lugging the engine when speed is
resumed. If the vehicle comes to a complete stop,
the TCU resets the transmission to neutral.
NOTE: A downshift request will be refused if the
selected gear would cause engine overspeed.
Cruise Control
Cruise control is fully functional with AGS transmis-
sion in either AUTO or MAN mode.
In AUTO, the TCU will adjust the gear selections to
maintain the speed settings as desired. No driver
action is necessary.
In MAN, the vehicle speed settings must be within
the engine speed range for the gear selected. If the
engine cannot maintain set speed due to changes in
road grade, the driver must downshift or upshift as
necessary.
For vehicles equipped with a power take-off (PTO)
unit, two modes of operation are possible, stationary
and mobile. For PTO operation, see
Selecting Gears
Reverse
Reverse (R) is at the upper end of the three-position
selector switch located at the end of the SmartShift
control lever. To select reverse (R), press in the neu-
tral lock button and move the selector switch upward
to the position above neutral. When reverse is se-
lected, the letter "R" displays on the gear indicator.
See
IMPORTANT: The vehicle must come to a com-
plete stop before selecting reverse. If reverse is
selected with the vehicle moving forward, an
audible alert will sound and continue sounding
at three-second intervals until the selector
switch is returned to N or D.
Once the vehicle has come to a complete stop, re-
verse can be engaged.
Neutral
Neutral (N) is in the center of the three-position se-
lector switch located at the end of the SmartShift
control lever. Always start the engine in neutral. To
select neutral, move the selector switch to the center
position. When neutral is selected, the letter "N" dis-
plays on the gear indicator. See
Drivetrain
8.27
