Chevrolet Low Cab Forward 2023 Manual page 172

brake pedal depressed as you operate the
selector lever. When 3rd or a lower gear is
selected, the transmission will not shift to a
gear above the selected gear position. See
Driver Information Center (DIC) 0 59,
Overdrive Off 0 172, and Automatic
Transmission 0 162.
Models with ALLISON2500RDS Model
Transmission
Move the selector lever to make a shift into
each gear position.
R (Reverse) : Used when backing up the
vehicle. Bring the truck to a complete stop
before moving the selector to the R position.
N (Neutral) : Used when the vehicle is
parked or when starting the engine. Be sure
to set the parking brake when parking. See
Transporting a Disabled Vehicle 0 251.
OD (Normal Driving) : The OD position is for
all normal forward driving. The system
automatically selects the gear according to
the vehicle speed. Press the overdrive off
switch to switch to the overdrive "ON"
position for greater fuel economy.
3 (Third) : Used when driving on urban roads
with heavy traffic. Return the selector to the
OD position for normal driving.
2 (Second) : May be used when driving on
downhill roads or when the engine brake is
required. Select the 2 position at speeds
below 40 km/h (25 MPH) when traveling
down a moderate grade. Return the selector
to the OD position for normal driving.
1 (Low) : Used on steep downhill roads or
when strong engine braking is required.
Return the selector to the OD position for
normal driving.
Driving and Operating
Caution
When pulling away, always visually check
the position of the selector lever for
safety.
Only push the button for gear
selection when necessary. Pushing the
button unnecessarily may result in
unintended gear selection.
Do not run the vehicle with the
transmission in neutral. Not only will
engine braking not function, but the
transmission will also be damaged.
When repeatedly shifting between forward
and reverse gears for a multiple-point turn,
firmly press the brake pedal and confirm
that the vehicle is completely stopped
before operating the selector lever.
The selector lever cannot be moved unless
the engine control switch is in the "ON"
position. Before pulling away, be sure to
keep the brake pedal depressed as you
operate the selector lever. When 3rd or a
lower gear is selected, the transmission will
not shift to a gear above the selected gear
position. See Driver Information Center (DIC)
0 59, Overdrive Off 0 172, and Automatic
Transmission 0 162.
171