transmission CHEVROLET LOW CAB FORWARD 2017 User Guide

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
Instruments and Controls 95
decrease the year. While in the year
setting screen, press the DIC
selector once to switch to the month
setting screen. The month segment
will flash. Use the same method to
set the month. While in the month
setting screen, press the DIC
selector again to switch to the day
setting mode. Adjust the day using
the selector.
Press and hold the DIC selector to
complete the calendar setting.
When complete, the normal
calendar display will resume. Use
this same method to set the hour
and minute when in the clock setting
screen.
Dimmer
The brightness of the DIC can be
adjusted while the light control
switch is off. Select this screen and
turn the DIC selector clockwise or
counterclockwise to brighten or dim
the illumination. The brightness is
linked to the adjustment of the
instrument panel light level control
while the light control switch is on.
SeeInstrument Panel Illumination
Control 0106.Warning Lights and Messages
.
Engine Overheat Warning Light
. Low Coolant Warning Light
. Water Separator Warning Light
. Air Cleaner Light
. Low Fuel Warning Light
. Regeneration Warning Lights
. Exhaust System Warning Light
. Refill DEF Warning Light
. DIC Errors
. Maintenance Data
. Hour Meter
See Vehicle Messages (Diesel
Only) 097.
Maintenance Data Functions
Display/Not Display the
Maintenance Data Function
Maintenance Light: On the DIC, go
to the Maintenance Indicator Light.
Switch the display by pressing and
holding the DIC selector for more
than two seconds. Turn the DIC
selector clockwise or
counterclockwise to switch the display. Complete the resetting by
pressing and holding the DIC
selector for more than two seconds.
To cancel the setting procedure,
press the DIC selector once. The
display will go back to the previous
screen.
Resetting/Setting the Change
Interval (Odometer Reading)
Engine Oil and Filter Light :
On
the DIC, go to the engine oil and
filter light. Enter the resetting screen
by pressing and holding the DIC
selector for more than two seconds.
Complete the resetting by pressing
and holding the DIC selector for
more than two seconds.
Transmission and Differential
Gear Oil Light, Fuel Filter Light,
Power Steering Fluid Light, and
Tire Rotation Light : On the DIC,
go to the particular maintenance
item to reset/adjust. Enter the
setting change screen by pressing
and holding the DIC selector. Set
the change interval by turning the
DIC selector. (Transmission and
Differential Oil, Steering Fluid, and
Tire Rotation Only). Turn clockwise

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
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96 Instruments and Controls
to increase distance and
counterclockwise to decrease
distance. The distance increases
and decreases by 4,000 km
(2,500 mi) increments. Complete the
resetting by pressing and holding
the DIC selector.
Transmission and Differential Gear
Oil and Power Steering Fluid: Initial
value: 48,000 km (30,000 mi).
Adjustable minimum value:
32,000 km (20,000 mi). Adjustable
maximum value: 48,000 km
(30,000 mi).
Tire Rotation: Initial value: OFF.
Adjustable minimum value:
6,000 km (4,000 mi). Adjustable
maximum value: 62,000 km
(39,000 mi).
Starter Indicator Light :On the
DIC, go to the starter indicator light.
Enter the resetting screen by
pressing and holding the DIC
selector for more than ten seconds.
Complete the resetting by pressing
and holding the DIC selector for
more than ten seconds. If you want to cancel the setting
procedure, press the DIC selector
once. The display will go back to the
previous screen.
Diesel Exhaust Fluid (DEF)
Gauge
With the engine control switch in the
ON position, this gauge indicates
the approximate quantity of DEF
remaining in the DEF tank. F means
the tank is full and E means the
tank is almost empty. When only
one green bar is showing, the DEF
tank is almost empty and should be
refilled soon. If the vehicle is driven
too long with only one bar, the green
will change to amber and additional
warnings and indicators will display.
Vehicle speed will be severely
limited when the DEF tank is empty.
Be sure to add DEF in advance of
the empty status. See
Diesel
Exhaust Fluid 0189.

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
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100 Instruments and Controls
result in a severe vehicle speed
limitation. SeeDiesel Exhaust Fluid
0 189.
When DIC ERROR is Displayed
ERROR
If the system has not yet been able
to access maintenance data,
ERROR is shown on the DIC.
If ERROR does not change
automatically to a distance or other
maintenance indication, have your
vehicle serviced at your dealer.
Maintenance Data Indicator
Lights
Maintenance data indicator lights
appear on the DIC when each
maintenance item is selected or
when the next change or service
interval of the item is near or has
been reached.
The distance or time shown is the
remaining or excess of them to /
from the change or service timing.
The positive distance or time shows
the remaining of that and the
negative distance or time shows the
excess of that. For the items listed below, the displayed color will
change from green to amber when
remaining distance is below
1 000 km (1,000 mi) and the screen
is selected.
These screens are also displayed
when the engine control switch
turns to the ON position after above
notification timing. The message
remains on the display until the DIC
selector is pressed once or the
vehicle is started.
The maintenance data function
indicates the distance remaining
before the next scheduled
maintenance. Scheduled
maintenance time is approaching
when the display turns from green
to amber. Have the vehicle checked
and serviced at your dealer as soon
as possible.
The vehicle needs to be maintained
more often if it is driven in severe
conditions.
MAINTENANCE ON or
MAINTENANCE OFF
This indicator displays and hides
maintenance items. When
MAINTENANCE ON is displayed,
maintenance items will be
displayed. When MAINTENANCE
OFF is displayed, maintenance
items will not be displayed.
When MAINTENANCE OFF is
displayed, there will be no display of
maintenance items such as rotation
intervals or replacement intervals
even when such intervals arrive.
ENG OIL & FILTER
When this message and light
display green, it shows the distance
remaining until the next engine oil
and filter change. When this
message displays amber, the next
change of engine oil and filter is
near or has been reached.
T/M & DIFF OIL
When this message and light
display green, it shows the distance
remaining until the next
transmission oil and differential oil
change. When this message

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
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Instruments and Controls 101
displays amber, the next change of
transmission oil and differential oil is
near or has been reached.
FUEL FILTER
When this message and light
display green, it shows the distance
remaining until the next fuel filter
change. When this message
displays amber, the next change of
fuel filter is near or has been
reached.
STEERING OIL
When this message and light
display green, it shows the distance
remaining until the next power
steering fluid change. When this
message displays amber, the next
change of power steering fluid is
near or has been reached.
TIRE ROTATION
When this message and light show
green with OFF, it means the
vehicle has been shipped from the
factory with no tire rotation interval
set. When this message displays
green it has the distance until the
next tire rotation displayed. Whenthis message displays amber the
next tire rotation is near or has
already been reached.
STARTER
When this message and light is
green, it displays the number of
engine starts remaining until a
starter motor is replaced. When this
message and light is amber, it
displays when the time for a starter
motor replacement is near or has
already been reached.
For the starter indicator light, the
displayed color will change from
green to amber when remaining
time is below 0 times and the
screen is selected.
For resetting or setting maintenance
data intervals, see
Driver
Information Center (DIC) (Diesel
Only) 093.
Hour Meter
HOUR METER
This message and light indicate how
many hours the engine has been
run. The figure(s) on the left side of the decimal point indicate hours
while the figure on the right side
indicates 1/10 of an hour.
Warning Buzzers
A warning buzzer may not sound if
there is a problem with the buzzer
system. If this occurs, the system
needs to be inspected. See your
dealer.
All Vehicles
A warning buzzer sounds under the
following conditions:
.
Seat Belt— continuous beep.
See Seat Belt Reminders 083.
Gasoline Vehicles
A warning buzzer sounds under the
following conditions:
.
Brake booster —continuous
beep. See Brake System
Warning Light (Parking Brake
Light) 084.

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
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112 Infotainment System
As an example, "CH1" is
displayed.
The radio stations in memory are
erased when the power supply is
interrupted to replace the battery or
fuses.
Programming Preset Channels 1. Display the channel number you wish to program.
2. Press the "CH" button for 2 seconds or longer.
The frequency display will
blink.
3. Press the "TUNE" button ("
y
z
") to select the frequency
you wish to program.
4. Press the "CH" button for 2 seconds or longer.
Once it has been set as a
preset channel, the frequency
display will stop blinking.
Radio Reception
Usually, a problem with radio
reception does not mean there is a
problem with your radio - it is just the normal result of conditions
outside the vehicle. For example,
nearby buildings and terrain can
interfere with FM reception. Power
lines or telephone wires can
interfere with AM signals.
And of course, radio signals have a
limited range. The farther you are
from a station, the weaker its signal
will be. In addition, reception
conditions change constantly as
your vehicle moves.
Here are some common reception
problems that probably do not
indicate a problem with your radio.
FM Transmissions
Fading and drifting stations -
Generally, the effective range of FM
is about 40 km (25 miles). Once
outside this range, you may notice
fading and drifting, which increase
with the distance from the radio
transmitter. They are often
accompanied by distortion.
Multi-path - FM signals are
reflective, making it possible for two
signals to reach your antenna at the
same time. If this happens, the
signals will cancel each other out,
causing a momentary flutter or loss
of reception.
Static and fluttering - These occur
when signals are blocked by
buildings, trees, or other large
objects. Increasing the bass level
may reduce static and fluttering.
Station swapping - If the FM signal
you are listening to is interrupted or
weakened, and there is another
strong station nearby on the FM
band, your radio may tune in the
second station until the original
signal can be picked up again.
AM Transmissions
Fading - AM broadcasts are
reflected by the upper atmosphere -
especially at night. These reflected
signals can interfere with those
received directly from the radio
station, causing the radio station to
sound alternately strong and weak.
Station interference - When a
reflected signal and a signal
received directly from a radio station
are very nearly the same frequency,

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
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122 Infotainment System
z: Decrease folder number.
Repeat Playback 1. Press the "FUNC" button for less than 1 second to
display "RPT."
2. Playback method can be selected between "RPT OFF,"
"RPT ON," and "FLD RPT ON"
every time the "TRACK" button
("
y z") is pressed.
"RPT OFF": Repeat playback
is off.
"RPT ON": File being played
back will be repeatedly
played back.
"FLD RPT ON": Files in the
folder being played back will be
repeatedly played back.
Random Playback 1. Press the "FUNC" button for less than 1 second to
display "RDM." 2. Playback method can be
selected between "RDM OFF,"
"RDM ON," and "FLD RDM
ON" every time the "TRACK"
button ("
y z") is pressed.
"RDM OFF": Random playback
is off.
"RDM ON": Files in the USB
device are randomly
played back.
"FLD RDM ON": The files
stored inside the folder being
played back are randomly
played back.
Root Directory
When the "FLD" button is pressed
for 1 second or more, the first folder
in the USB device is selected to
start playback.
Switching the Displayed Items on
the Display
Every time the "DISP" button is
pressed for 1 second or more, the
file number and elapsed time is
switched. If an Error Appears in the Display
If a problem occurs with the USB
device during playback, an error
appears in the display.
Message/Description
E1 An unsupported USB device
is connected.
Connect a supported USB
device.
E2 This message appears
when operation of some
problem is not possible due
to the player.
Remove the connected USB
device.
E3 This message appears
when the temperature inside
the player is too high or
another extreme condition is
detected.
Wait a while before trying to
operate the player again.
E4 This message appears
when failed playback or
difficulty in transmission is
detected.
Reconnect the USB device.

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
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132 Driving and Operating
Driving and
Operating
Driving Information
Driver Behavior . . . . . . . . . . . . . . . 133
Distracted Driving . . . . . . . . . . . . 133
Control of a Vehicle . . . . . . . . . . . 133
Braking . . . . . . . . . . . . . . . . . . . . . . . 137
Steering . . . . . . . . . . . . . . . . . . . . . . 143
Driving on Wet Roads . . . . . . . . 143
Hill and Mountain Roads . . . . . 144
Winter Driving . . . . . . . . . . . . . . . . 145
If the Vehicle Is Stuck . . . . . . . . 148
Emergencies(Troubleshooting) . . . . . . . . . . . 148
Emergencies (Disabled Vehicle) . . . . . . . . . . . . . . . . . . . . . 161
Starting and Operating
New Vehicle Break-In . . . . . . . . . 162
Pedals . . . . . . . . . . . . . . . . . . . . . . . . 163
Ignition Positions . . . . . . . . . . . . . 163
Starting and Stopping theVehicle (Gasoline Only) . . . . . 165
Starting and Stopping the Vehicle (Diesel Only) . . . . . . . . 168
Operating Temperature . . . . . . . 172
Winter Cover . . . . . . . . . . . . . . . . . 172
Engine Heater . . . . . . . . . . . . . . . . 173 Engine Alarm and Automatic
Shutdown (Diesel Only) . . . . . 174
Idle Shutdown . . . . . . . . . . . . . . . . 174
High Idle System . . . . . . . . . . . . . 174
Engine Checks Before Operating . . . . . . . . . . . . . . . . . . . 175
Parking over Things That Burn . . . . . . . . . . . . . . . . . . . 176
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . 178
Running the Vehicle WhileParked . . . . . . . . . . . . . . . . . . . . . . 179
Diesel Particulate Filter
Diesel Particulate Filter . . . . . . . 180
Diesel Exhaust Fluid
Diesel Exhaust Fluid . . . . . . . . . . 189
Automatic Transmission
Automatic Transmission . . . . . . 204
Selector Lever . . . . . . . . . . . . . . . . 214
Overdrive Off . . . . . . . . . . . . . . . . . 215
Brakes
Antilock BrakeSystem (ABS) . . . . . . . . . . . . . . . 217
Parking Brake . . . . . . . . . . . . . . . . 221
Exhaust Brake (Diesel Only) . . . . . . . . . . . . . . . . 222
Cruise Control
Cruise Control (Diesel) . . . . . . . 224
Cruise Control (Gas) . . . . . . . . . 227
Driver Assistance Systems
Speed Limiter (GasolineVehicle) . . . . . . . . . . . . . . . . . . . . . 231
Fuel
Fuel (Gasoline) . . . . . . . . . . . . . . . 231
Fuels in Foreign Countries . . . 232
Fuel for Diesel Engines . . . . . . . 232
Biodiesel . . . . . . . . . . . . . . . . . . . . . 233
Cold Weather Operation(Diesel) . . . . . . . . . . . . . . . . . . . . . 235
Water in Fuel (Diesel) . . . . . . . . 236
Running Out of Fuel (Diesel) . . . . . . . . . . . . . . . . . . . . . 238
Filling the Tank . . . . . . . . . . . . . . . 240
Conversions and Add-Ons
Add-On Electrical Equipment . . . . . . . . . . . . . . . . . . 241
Power Take-Off (PTO) . . . . . . . . 242

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Driving and Operating 139
Caution (Continued)
warning light comes on during
operation, have brake system
checked immediately.
Refer to Warning Lights, Gauges,
and Indicators 076.
When the Brakes Do Not Work
{Warning
It is very dangerous to suddenly
pull the parking brake lever all the
way while moving at high speed.
Reduce speed first by shifting
down and then gradually pull the
parking brake lever.
You and others could be seriously
injured.
(Diesel Only) The exhaust brake
should be turned on as soon as
service brake malfunction is
detected. This will slow the engine
speed. With the engine speed under
control and providing the grade conditions permit, the transmission
can be progressively downshifted
using the exhaust brake in each
gear. Eventually the exhaust brake
should slow the vehicle to a
controllable
“crawl.”Gradually pull
the parking brake lever while firmly
holding on to the steering wheel.
Stop the vehicle on the side of the
road. The vehicle should not be
driven further until corrective
measures are taken.
See Exhaust Brake (Diesel Only)
0 222 andParking Brake 0221.
(Gasoline Only) If the brakes do not
work in an unexpected situation,
promptly shift down from D6, D4,
2nd and then to 1st gear using the
selector lever to reduce the speed
and gradually pull the parking brake
lever to stop the vehicle on the side
of the road while firmly holding on to
the steering wheel.
See Parking Brake 0221. Riding the Brake
{Warning
"Riding the brake" by resting your
foot on the pedal, when you do
not intend to brake, can overheat
the brakes and wear out the
brake linings faster. This may also
damage the brakes and will waste
fuel. It can also result in reduced
braking performance.
You and others could be seriously
injured.
Applying the Parking Brake
Except in an emergency, do not
apply the parking brake until the
vehicle has come to a complete
stop. Applying the parking brake
before the vehicle has stopped can
cause a breakdown.
Refer to
Parking Brake 0221.
Parking Safely on a Slope
Avoid parking your vehicle on a
slope as much as possible and
choose a level and flat place. If you

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
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Driving and Operating 141
Warning (Continued)
down a slope without the engine
running, you would not be able to
properly control the vehicle and
could have an accident.
Parking, or Leaving
Driver’s Seat
{Danger
It can be dangerous to get out of
your vehicle if the selector lever is
not fully in "P" (Park) or the
parking brake is not applied all
the way. Your vehicle can roll or
move suddenly.
To be sure your vehicle will not
move, even when you are parking
on level ground, follow the steps
below. (If you have to park on a
hill, also turn your front wheels so
the vehicle will roll away from
traffic.)
You and others could be seriously
injured or killed. 1. Hold the regular brake pedal
down with your right foot and
apply the parking brake all the
way before shifting the
transmission. Follow the
Parking Brake instructions in
this manual for your vehicle.
2. To move the selector lever to "P" (Park), hold in the button
on the lever and push the lever
all the way toward the front of
your vehicle.
3. Turn the key to "LOCK".
4. Remove the key and take it with you.
5. Before you leave the driver's seat, be sure the vehicle is not
moving, or check that your
vehicle is in Park by trying to
pull the selector lever out of "P"
(Park) by pulling the selector
lever toward you without
pushing the button. If you can
do this, it means that the
selector lever was not fully
locked into "P" (Park). Do Not Touch the Selector Lever
While the Vehicle is Stationary
with the Engine Idling
(Gasoline Only)
(Diesel) Do not touch the selector
lever while the vehicle is stationary
with the engine idling. If you touch
the selector lever at this time, a gear
could be selected and the vehicle
could move even with the parking
brake applied. The risk of knocking
against the selector lever and
causing an accident is particularly
great when you move in or out of
your seat.
Driving Down a Long Slope
When driving down a long slope,
use the exhaust brake (diesel) or
engine brake (gasoline) together
with the foot brakes. Using the
exhaust brake (diesel) or engine
brake (gasoline) and low-gears
reduces the work load on the foot
brakes and yields greater braking
force. Even so, use the foot brakes
appropriately to prevent the engine
over-revving.

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
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142 Driving and Operating
Frequent use of the foot brakes can
cause vapor lock and brake fade,
resulting in reduced brake
effectiveness.
Brake Fade :Frequent use of the
brakes can cause the brakes to
overheat so that the frictional force
of the brake linings decreases and
the brakes become less effective
than normal. This phenomenon is
called brake fade.
Vapor Lock : If the brakes overheat
due to frequent use, the heat can
cause the brake fluid to boil so that
air bubbles are created in the brake
fluid. Pressing the brake pedal
simply compresses the air bubbles;
pressure is not transmitted to the
wheel cylinders, so the brakes'
effectiveness sharply deteriorates.
This phenomenon is called
vapor lock.
Even so, you should be very careful
when using engine braking in a low
gear because the engine is likely to
over-rev.
See Exhaust Brake (Diesel Only)
0 222 andSelector Lever 0214. On diesel vehicles, do not adjust the
exhaust brake valve.
The engine should never be allowed
to exceed the governed speed.
Supplement the exhaust brake with
vehicle service brakes intermittently
and/or shift to higher transmission
gear to prevent engine overspeed.
A rule of thumb for gear selection is
that the vehicle should be driven
down a grade in the same gear that
would be used to climb that grade.
{Warning
To reduce the risk of personal
injury, before going down a steep
or long grade, reduce speed, turn
on the exhaust brake and shift the
transmission to the next lower
gear. This will help control your
speed. Do not hold the brake
pedal down too long or too often
while going down a steep or long
grade. This could cause the
brakes to get hot and not to work
as well. As a result, the truck will
(Continued)
Warning (Continued)
not slow down at the usual rate.
Failure to take these steps could
result in loss of vehicle control.
You and others could be seriously
injured.
Brake Effectiveness When the
Vehicle Has Been Driven on a
Flooded Road or Washed
{Warning
When the vehicle is driven on a
flooded road, parked on a flooded
road or washed, water can get
into the brakes and reduce their
effectiveness. If the brakes do not
work well afterward, drive slowly
and gently press the brake pedal
several times until the brakes dry
out and start working normally.
Always do this after driving
through water or washing the
vehicle to help reduce the risk of(Continued)