light CHEVROLET LOW CAB FORWARD 2020 User Guide

Chevrolet Low Cab Forward 5.2L Diesel Engine 4500 HD/XD/5500 HD/XD
Owner Manual (GMNA-Localizing-U.S.-13337621) - 2020 - crc - 12/5/18
Keys, Doors, and Windows 25
To Lock Rear Power Windows
Rear Power Window Lock Switch
If you push the rear power window
lock switch, only the driver's window
and front passenger's window will
open. To cancel the rear power
window lock, push the switch again.
Use the rear power window lock
switch to "LOCK" the rear power
windows. By doing so, you can
prevent passengers from operating
the rear power windows.
Sun Visors
Driver ’s Side
Passenger ’s Side
The sun visor (1) protects your eyes
in strong sunlight. Use it when
sunlight is too bright. To reduce side
glare, unhook (2) the sun visor (1)
and swing it around to the side.
Make sure to fold up the sun visor
after use.

Chevrolet Low Cab Forward 5.2L Diesel Engine 4500 HD/XD/5500 HD/XD
Owner Manual (GMNA-Localizing-U.S.-13337621) - 2020 - crc - 12/5/18
Seats and Restraints 29
{Warning
Do not adjust the reclining
seatback on the driver's seat
while the vehicle is moving. The
seatback could jerk and cause a
loss of control. You and others
could be seriously injured.
To recline the seatback, raise the
seatback tilt lever and gently lean
back to the desired position.To move the seatback forward, lean
forward with your back slightly clear
of the seatback and raise the lever.
After making adjustments, check
that the seatback is fully locked.
Suspension Adjustment
Avoid making any kind of contact
with the pointer on the scale. Doing
so may result in damage to the
pointer, preventing appropriate
weight adjustments from being
possible.
Before sitting on the seat, use the
knob to adjust the suspension to
suit your weight. Turn the knob
clockwise to move the pointer downthe scale and counterclockwise to
move it up the scale. The pointer
should be alongside your weight on
the scale.
The range of adjustment is
50-130 kg (110-290 lbs). If your
weight is outside this range, the
suspension may not be fully
effective. However, you will be able
to sit in the correct position for
driving.
Passenger
’s Seat/Center Seat
{Warning
Baggage must not be placed on
the center seat. If the baggage
falls on the floor when braking, it
may prevent the driver from
operating the pedals. You and
others could be seriously injured.

Chevrolet Low Cab Forward 5.2L Diesel Engine 4500 HD/XD/5500 HD/XD
Owner Manual (GMNA-Localizing-U.S.-13337621) - 2020 - crc - 12/5/18
34 Seats and Restraints
Warning (Continued)
collision or sudden stop if it is in
contact with your neck and/
or face.
Every seat except the center seat
on your vehicle is equipped with a
three-point seat belt. The seat belt
extends or retracts freely if the
wearer moves slowly, but it locks
and restrains the occupant during
forward force caused by the
occupant's body following a strong
shock.To Fasten:
1. Sit on the seat in the correct driving position.
2. Pull out the seat belt holdingthe latch plate. After checking
that there are no twists in the
belt, insert the latch plate into
the buckle until it clicks. If the
retractor locks before the latch
plate reaches the buckle, let
the belt retract slightly, then
withdraw it slower than before.
3. To reduce the risk of slidingunder the belt during a
collision, position the belt
across your lap as low on your
hips as possible and adjust it to
a snug fit by pulling the
"shoulder" portion upward
through the latch plate.
The lap-shoulder belt is
designed to lock during a
sudden stop or impact. At other
times it should move freely.

Chevrolet Low Cab Forward 5.2L Diesel Engine 4500 HD/XD/5500 HD/XD
Owner Manual (GMNA-Localizing-U.S.-13337621) - 2020 - crc - 12/5/18
36 Seats and Restraints
An expectant mother or a person
who is ill riding in the vehicle must
also wear a seat belt. In light of the
risk that the seat belt will apply
pressure to the abdomen, chest and
shoulders in the event of a collision,
however, an expectant mother or
person who is ill should get advice
from a physician beforehand.
.An expectant mother should use
a three-point seat belt.
. An expectant mother should
position the lap belt snugly as
low as possible on the hips (not
across the abdomen). Also, she
should fasten the shoulder belt
so it rests on her chest, not on
her abdomen.
Lap Belt
The center seat lap belt has no
retractor, but should be positioned,
worn, and released as described
below.
To Fasten:
1. Sit on the seat in the correct position.
2. Pull out the latch plate side ofthe belt a little longer than
necessary. Placing the latch
plate at right angles with the
belt makes this easier.3. After checking that there are notwists in the belt, insert the
latch plate into the buckle until
it clicks.

Chevrolet Low Cab Forward 5.2L Diesel Engine 4500 HD/XD/5500 HD/XD
Owner Manual (GMNA-Localizing-U.S.-13337621) - 2020 - crc - 12/5/18
38 Seats and Restraints
Warning (Continued)
that may have entered the buckle.
Instead, arrange for inspection
and maintenance to be carried
out by your dealer. You and
others could be seriously injured.
A dirty seat belt can develop
retracting problems, and for this
reason, regular inspection and
upkeep are required.
Cleaning a Seat Belt Fold-Back
Fitting Portion
1. Seat belt fold-back fitting portion
2. Seat belt
3. Cloth
Cleaning a Seat Belt Fold-Back
Fitting Portion:
1. Fold a piece of cotton cloth, absorbent gauze, or the like of
approximately 50 mm (2 in) in
width into a rectangle.
2. Mix one part neutral detergent into approximately twenty parts
warm water.
3. Wet the cloth in the detergent mixture, pass it through the
fold-back fitting portion of the
belt, and slide it back and forth
and laterally until dirt can no
longer be seen.
4. Remove the cloth, remove moisture from the fitting portion
of the belt using a dry cloth,
and then allow it to dry
naturally out of direct sunlight.
5. Check to be sure the seat belt retracts and pulls out correctly. Avoid using anything like a tool to
pass the cloth through the fold-back
fitting portion or try to remove
stubborn dirt. Using such an object
can result in plastic parts or seat
belt webbing damage.
Cleaning a Belt Webbing
1. Brush
2. Seat belt
Cleaning a Belt Webbing:
1. Fully extract the belt and examine for any difference in
color between the front and
back surfaces.

Chevrolet Low Cab Forward 5.2L Diesel Engine 4500 HD/XD/5500 HD/XD
Owner Manual (GMNA-Localizing-U.S.-13337621) - 2020 - crc - 12/5/18
Seats and Restraints 39
2. Mix one part neutral detergentinto approximately twenty parts
warm water.
3. Wet a nail brush or another similar brush having soft
bristles (of nylon or the like) in
warm water, and use this to
clean away dirt.
4. Wipe the seat belt dry using a dry cloth, and then allow it to
dry naturally out of direct
sunlight.
5. Check to be sure the seat belt retracts and pulls out correctly. If the above-described upkeep
operations do not improve the
operation of the seat belt through
the retractor, there is a possibility
that the belt is making contact with
the door pillar trim. In this case,
arrange for inspection and
maintenance to be carried out by
your dealer.
If the belt is not winding and
unwinding correctly, or if inspection
reveals problems such as loose
mountings, metal parts deformation,
webbing damage, fraying or
discoloration, arrange for
replacement to be carried out by
your dealer.Child Restraints
Child Restraint Systems
{Warning
Children small enough for child
restraints (as indicated on the
label of such restraints), including
booster seats, should always be
transported in them. Children who
have outgrown child restraint
systems should wear seat belts.
The lap belt should be snug and
positioned low on the abdomen
so that it is below the top of the
hipbone. Otherwise, the belt could
intrude into the child's abdomen
during an accident and cause
personal injury. When a child has
grown enough so that the
shoulder belt can be worn, a
seating position with a shoulder
belt should be chosen whenever
possible.
(Continued)

Chevrolet Low Cab Forward 5.2L Diesel Engine 4500 HD/XD/5500 HD/XD
Owner Manual (GMNA-Localizing-U.S.-13337621) - 2020 - crc - 12/5/18
44 Storage
{Warning
For safety, close the glove box
during driving. There is a risk of
injury from the open lid or items
stored in the glove box.
You and others could be seriously
injured.
The glove box lid will automatically
spring open when it is unlocked. Do
not put your face or head near
the lid.
{Warning
Do not leave eyeglasses or a
lighter in the vehicle. Lighters
may explode and plastic lenses or
frames may deform or crack if the
interior temperature becomes
very hot.
You and others could be seriously
injured.
Caution
When closing the glove box lid,
do not allow stored items to pass
the line shown in the illustration.
The glove box lid may break if it
is closed when items inside have
passed the line and are sticking
out from the box.
Do not place items such as vehicle
registration documents or owner
manuals in the glove box, but store
them in the seat back pocket
located on the back side of the
driver seat.
Refer to Storage Compartments
0 42.
Cupholders
Pull the cupholder towards you to
open it.
Do not place a cup that is too full in
the cupholder. Spillages could
cause damage to the radio and
other electrical circuits. If there is a
spill, wipe it up immediately with a
dry cloth.
Do not tilt the cab with a filled cup in
the cupholder. There may be a
danger of the cupholder breaking if
the weight on each holder exceeds

Chevrolet Low Cab Forward 5.2L Diesel Engine 4500 HD/XD/5500 HD/XD
Owner Manual (GMNA-Localizing-U.S.-13337621) - 2020 - crc - 12/5/18
52 Instruments and Controls
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . . 53
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Windshield Wiper/Washer . . . . . . 54
Power Outlets . . . . . . . . . . . . . . . . . 55
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . 56
Instrument Cluster . . . . . . . . . . . . . 57
Speedometer . . . . . . . . . . . . . . . . . . 58
Odometer . . . . . . . . . . . . . . . . . . . . . . 58
Trip Odometer . . . . . . . . . . . . . . . . . 58
Tachometer . . . . . . . . . . . . . . . . . . . . 59
Fuel Gauge . . . . . . . . . . . . . . . . . . . . 59
Engine Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . . . 60
Diesel Exhaust Fluid (DEF) Gauge . . . . . . . . . . . . . . . . . . . . . . . . 60
Seat Belt Reminders . . . . . . . . . . . 60
Battery Warning Light . . . . . . . . . . 61
Malfunction Indicator Lamp (Check Engine Light) . . . . . . . . . 61
Service Vehicle Soon Light . . . . 62 Brake System Warning Light
(Parking Brake Light) . . . . . . . . . 62
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . . 64
Exhaust Brake Light . . . . . . . . . . . 65
Service Transmission Warning
Light . . . . . . . . . . . . . . . . . . . . . . . . . 65
Automatic Transmission Fluid Temperature Warning Light . . . 66
Overdrive Off Light . . . . . . . . . . . . . 66
Wait-to-Start Light . . . . . . . . . . . . . 67
Engine Oil Pressure Light . . . . . . 67
Engine Oil Level Indicator Light . . . . . . . . . . . . . . . . . . . . . . . . . 67
Diesel Exhaust Fluid (DEF) Warning Light . . . . . . . . . . . . . . . . 68
Engine Shutdown Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . 68
Idle Shutdown Light . . . . . . . . . . . . 68
Reduced Engine Power Light . . . . . . . . . . . . . . . . . . . . . . . . . 69
High-Beam On Light . . . . . . . . . . . 69
Daytime Running Lamps (DRL) Indicator Light . . . . . . . . . . . . . . . . 69
Cruise Control Light . . . . . . . . . . . 70
Information Displays
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . 70
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . . 74
Warning Buzzers . . . . . . . . . . . . . . 79

Chevrolet Low Cab Forward 5.2L Diesel Engine 4500 HD/XD/5500 HD/XD
Owner Manual (GMNA-Localizing-U.S.-13337621) - 2020 - crc - 12/5/18
54 Instruments and Controls
Windshield Wiper/Washer
To use the windshield wiper and
washer switches, the engine control
switch must be in the ON position.
The windshield wiper switch has the
following positions, which
correspond to the states of the
wiper.
9:Stopped.
3:Intermittent, light rain.
Low Speed : Low speed,
moderate rain.
High Speed : High speed,
heavy rain. If the wiper frequently stops during
operation, contact your nearest
Dealer.
Clear snow and ice from the wiper
blades and windshield before using
them. If frozen to the windshield,
carefully loosen or thaw them.
Damaged blades should be
replaced. See
Wiper Blade
Replacement 0265.
Do not operate the wiper on a dry
windshield surface. Otherwise, the
windshield surface may sustain
damage.
Windshield Washer
{Warning
In freezing weather, do not use
the washer until the windshield is
warmed. Otherwise the washer
fluid can form ice on the
windshield, blocking your vision.
{Warning
Before driving the vehicle, always
clear snow and ice from the hood,
windshield, roof, and rear of the
vehicle, including all lamps and
windows. Reduced visibility from
snow and ice buildup could lead
to a crash.
Windshield washer fluid is sprayed
over the windshield when this switch
is pressed. At the same time, the
windshield wiper operates.

Chevrolet Low Cab Forward 5.2L Diesel Engine 4500 HD/XD/5500 HD/XD
Owner Manual (GMNA-Localizing-U.S.-13337621) - 2020 - crc - 12/5/18
56 Instruments and Controls
Warning Lights,
Gauges, and
Indicators
Warning lights and gauges can
signal that something is wrong
before it becomes serious enough
to cause an expensive repair or
replacement. Paying attention to the
warning lights and gauges could
prevent injury.Some warning lights come on briefly
when the engine is started to
indicate they are working. When
one of the warning lights comes on
and stays on while driving, or when
one of the gauges shows there may
be a problem, check the section that
explains what to do. Waiting to do
repairs can be costly and even
dangerous.
For safety reasons, do not place
packages, tools, or other items in
the driver
’s area that may restrict
access to the controls or sight of the
gauges.