TM 9-2320-303-10
2-13.
OPERATE TRANSMISSION.
a.
Transmission Ranges.
(1)
Reverse (R). Reverse (R) is used to back up the vehicle. Vehicle must be
brought to a complete stop before shifting from a forward range to R or visa versa. Light on
panel will illuminate and the digital display will display R when reverse is attained.
CAUTION
DO NOT allow truck to coast in Neutral (N). This can result in severe
transmission damage. When in N, engine braking is not available.
(2)
Neutral (N). Neutral (N) is the normal transmission position when vehicle
is not in use. Use N to start engine, to check vehicle accessories, and for extended periods of
engine idling. Light on panel will illuminate and the digital display will display N when
transmission is in neutral. Vehicle ECU automatically selects NEUTRAL when starting
vehicle.
(3)
Drive (D). When placed in Drive (D), the transmission starts out in 1st
gear and automatically progresses to the 4th gear. During slowdown, transmission
automatically downshifts. Light on panel will illuminate and the digital display will display the
highest forward gear attainable.
(a)
To select a specific forward gear press the up or down arrow
pushbuttons.
NOTE
Even when a lower gear is selected, transmission may not downshift
until vehicle speed is reduced.
(b)
The digital display will display the selected gear.
(c)
The greater the need for engine power or engine braking power, the
lower the gear selection should be.
(d)
Gears 2 and 3. Use 2nd or 3rd gears when road, load or traffic
conditions make it preferable to use lower gears.
(e)
Gear 1. 1st gear is the low gear used for pulling through mud, snow
or going up steep grades. This position also offers maximum engine braking power.
(f)
When conditions improve, return vehicle to Drive (D).
b.
Operation.
(1)
Depress brake pedal and hold.
(2)
Release parking brake (paragraph 2-2).
(3)
Press transmission shift selector pushbutton to desired range.
(4)
Release brake pedal and begin to move vehicle.
2-66
