engine CHEVROLET LOW CAB FORWARD 2018 User Guide

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
11254764) - 2018 - crc - 12/5/16
30 Keys, Doors, and Windows
Warning (Continued)
Exercise caution when opening or
closing doors, as strong winds or
steep slopes may cause doors to
open or close suddenly.
Do not hold parts other than the
grip when getting in or out of the
vehicle. Doing so may cause
damage to the vehicle or injuries
to yourself or others.
You and others could be seriously
injured.
Door Locks
{Warning
Be sure to do the following
whenever you leave the vehicle:1. Fully engage the parkingbrake.
2. Stop the engine.
3. Lock the doors. (Continued)
Warning (Continued)
When you close the door after
sitting behind the wheel, check
that the door is fully closed.
Driving with any door ajar is very
dangerous.
Before opening the door when
climbing into or out of the cab,
carefully check all areas around
the vehicle for safety, especially
the area at the rear of the vehicle.
If you suddenly open a door
without checking the surrounding
area, the door could be hit by a
vehicle behind you or a
pedestrian.
Never leave the key in the
vehicle.
Tilt the cab only after fully closing
the doors.
To help reduce the risk of
personal injury in an accident,
always lock the doors when
driving. Along with using the seat
(Continued)
Warning (Continued)
belts properly, locking the doors
helps prevent people from being
thrown from the vehicle. It also
helps prevent unintended opening
of the doors and helps keep out
intruders.
You and others could be seriously
injured.
{Warning
To protect the child from the
danger of getting his/her hands
and head trapped, an adult must
open, close and lock the door for
the child.
Be careful that the child does not
interfere with the power window
switches and get his/her hands or
head trapped in the window.
While a child is in the cab, be
(Continued)

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
11254764) - 2018 - crc - 12/5/16
Keys, Doors, and Windows 33
Power Door Locks
Power Door Lock (Central
Door Lock)
How the Power Door Lock System
Operates
When you lock the driver's door
using the key or by operating the
lock button, the power door lock
system will automatically lock all
doors simultaneously.
Door Lock Switch
Both doors can be locked and
unlocked by pressing the power
door lock switch.
Vehicle Security
Guard Against Theft
Your new vehicle has many features
to help prevent theft of the vehicle,
its equipment and contents. But
these anti-theft features depend
upon you to work.
The time to be most on guard is
when leaving the vehicle:
.Park in a lighted spot when
you can.
. Turn the engine control switch to
"LOCK" and remove the key.
This locks the switch and the
steering controls. The selector
lever is not locked.
. Keep items that may appear to
be of value out of sight and
locked up when possible.
. Fully close all windows and lock
all doors.
Exterior Mirrors
Mirrors
Sit in the correct driving position
with the seat adjusted properly.
Then, check each mirror to ensure
that a proper view of the rear and
sides of the vehicle are provided.
Make adjustments and clean mirrors
if necessary.
Outside Rearview Mirrors
After properly adjusting your seat for
proper driving position, adjust the
mirrors so that they provide
adequate views for checking the
rear and the sides of the vehicle.
Adjust the outside rearview mirrors
by hand before vehicle operation.
This helps you determine the
location of objects seen in the
mirror. If the outside mirror fogs up,
warm up the outside rearview
mirror's face to defog.
See Heated Mirrors 034.

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
11254764) - 2018 - crc - 12/5/16
34 Keys, Doors, and Windows
{Warning
Before driving, be sure to adjust
the seat and mirrors to positions
that give you a correct driving
posture.
Do not adjust the outside mirrors
while operating the vehicle.
Adjust the mirrors when the
vehicle is stationary, not while the
vehicle is in motion.
When checking the rear of the
vehicle with mirrors, be careful
that this does not distract your
attention from the traffic ahead.
Rearview mirrors may make the
vehicle behind you appear farther
away than it really is. Use these
mirrors very carefully until you are
able to correctly determine
distances from the images.(Continued)
Warning (Continued)
Keep the mirrors in mind when
passing another vehicle on a
narrow road, moving the vehicle
into a garage or driving near
pedestrians.
Do not drive with the mirrors
folded.
You and others could be seriously
injured.
Heated Mirrors
If the outside mirrors fog up, press
the outside rearview mirror heater
switch to defog them. When the
switch is pressed the indicating light
will illuminate. If the switch is
pressed once again, it will switch to
“OFF”, and the operation indicating
light will go out.
Do not use this switch while the
engine is stopped. Due to high
power consumption, the battery can
be discharged.
Turn off the switch as soon as
defogging is complete.

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
11254764) - 2018 - crc - 12/5/16
Keys, Doors, and Windows 35
Windows
Power Windows
{Warning
If you are traveling with a child,
do not leave the child alone in the
vehicle. If the child touches the
controls or equipment, an
accident could occur. (For
example, the vehicle could move
or a fire could start.) Also, the cab
inside could become dangerously
hot in hot weather.
{Warning
Before closing the windows, make
sure that there is no risk of a
hand, head, or anything else
being trapped in the moving
window.
You and others could be seriously
injured.
{Warning
Regardless of whether the vehicle
is moving or stationary, you must
never allow a child to put his/her
head, hands, or other body part
out of the window. Allowing such
behavior would be dangerous
because the child could hit an
obstacle.
You and others could be seriously
injured.
The power windows operate only
when the engine control switch is in
the ON position. Open each door
window by pressing the power
window switch; close each one by
raising the switch.
Window Switches on
Driver ’s Door
The power window switch on the
driver ’s door can operate both
driver ’s (2) and passenger ’s (1)
power windows.
To Open the Driver ’s Window
Lightly pressing the driver-side
window switch will lower the driver ’s
window until the switch is released
(manual mode operation). When the
switch is firmly pressed, the window
will lower completely without the
need to press the switch
continuously (automatic mode
operation). If you want to stop the

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
11254764) - 2018 - crc - 12/5/16
Storage 59
Model MaximumGVWR
kg (lb.) Front GAWR
Capacitykg (lb.) Rear GAWR
Capacitykg (lb.)
4500HD 6 577 (14,500) 2 431 (5,360) 4 482 (9,880) 4500XD 7 258 (16,000) 3 007 (6,630) 4 998 (11,020)
5500HD 8 142 (17,950) 3 098 (6,830) 5 888 (12,980)
5500XD 8 845 (19,500) 3 300 (7,275) 6 196 (13,660)
Maximum Front and Rear Axle
Weights
The weight of the cargo load must
be properly distributed over both the
front and rear axles. The “VIN,Weight Rating, and Greenhouse
Gas (GHG) Emissions Plate”
shows
the maximum weight that the front
axle can carry (front GAWR). It also
shows the maximum weight that the
rear axle can carry (rear GAWR).
The GVWR is the maximum
permissible loaded weight of the
vehicle and takes into account the
capabilities of the engine,
transmission, frame, springs,
brakes, axles and tires. Actual loads
at the front and the rear axles can
only be determined by weighing the
vehicle. This can be done at
highway weigh stations or other
such places. See your dealer for help. The cargo load should be
distributed on both sides of the
center line as equally as possible.
Tires
The tires on your truck must be of
the proper size and properly inflated
for the load that you are carrying.
The
“VIN, Weight Rating, and
Greenhouse Gas (GHG) Emissions
Plate” shows the originally equipped
tire size and recommended inflation
pressures.
For the vehicle plate location, see
Vehicle Identification Number (VIN)
0 330.
See “Tire Load and Inflation Table”
under Tire Pressure 0284.

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
11254764) - 2018 - crc - 12/5/16
62 Storage
Cargo loading cautionIncorrectCorrect
Avoid loading cargo too high. It can cause the vehicle to tip sideways
when it catches sidewinds and when turning the vehicle.
Loading Farm Equipment
Do not load farm equipment from
the rear of the cargo bed. The frame
may become deformed when farm
equipment is loaded from the rear of
the cargo bed. In addition, the frame may become deformed even when
loading farm equipment that has a
weight under the maximum loading
capacity.
When loading farming equipment, a
device for securing the cargo bed is
required. Use a car carrier or attach
a rear support stand. If you have
any questions, contact your dealer.
Make Sure There is No Flammable
Material between the Cab and
Cargo Bed
Caution
Be careful not to allow the ends of
ropes or edges of tarpaulins to
come lower than the heat
protector at the back of the cab.
During vehicle operation, the
engine's heat could set them on
fire. Carefully secure the ends of
ropes and edges of tarpaulins.

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
11254764) - 2018 - crc - 12/5/16
64 Instruments and Controls
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . . 65
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Windshield Wiper/Washer . . . . . . 66
Power Outlets . . . . . . . . . . . . . . . . . 67
Cigarette Lighter . . . . . . . . . . . . . . . 67
Ashtrays . . . . . . . . . . . . . . . . . . . . . . . 68
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . 69
Instrument Cluster . . . . . . . . . . . . . 70
Speedometer . . . . . . . . . . . . . . . . . . 71
Odometer . . . . . . . . . . . . . . . . . . . . . . 71
Trip Odometer . . . . . . . . . . . . . . . . . 71
Tachometer . . . . . . . . . . . . . . . . . . . . 72
Fuel Gauge . . . . . . . . . . . . . . . . . . . . 72
Engine Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . . . 72
Diesel Exhaust Fluid (DEF) Gauge . . . . . . . . . . . . . . . . . . . . . . . . 73
Seat Belt Reminders . . . . . . . . . . . 73
Battery Warning Light . . . . . . . . . . 73
Malfunction Indicator Lamp (Check Engine Light) . . . . . . . . . 74 Service Vehicle Soon Light . . . . 74
Brake System Warning Light
(Parking Brake Light) . . . . . . . . . 75
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . . 77
Exhaust Brake Light . . . . . . . . . . . 78
Service Transmission Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . 78
Automatic Transmission Fluid Temperature Warning Light . . . 78
Overdrive Off Light . . . . . . . . . . . . . 79
Wait-to-Start Light . . . . . . . . . . . . . 79
Engine Oil Pressure Light . . . . . . 79
Engine Oil Level Indicator Light . . . . . . . . . . . . . . . . . . . . . . . . . 80
Diesel Exhaust Fluid (DEF) Warning Light . . . . . . . . . . . . . . . . 80
Engine Shutdown Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . 80
Idle Shutdown Light . . . . . . . . . . . . 81
Reduced Engine Power Light . . . . . . . . . . . . . . . . . . . . . . . . . 81
High-Beam On Light . . . . . . . . . . . 81
Daytime Running Lamps (DRL) Indicator Light . . . . . . . . . . . . . . . . 82
Cruise Control Light . . . . . . . . . . . 82
Information Displays
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . 82
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . . 86
Warning Buzzers . . . . . . . . . . . . . . 91

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
11254764) - 2018 - crc - 12/5/16
66 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.
Before operating the wiper, ensure
that the wiper rubber is not stuck on
to the windshield. If the wiper rubber
is stuck to the windshield and you
still operate the wiper, the wiper
may break or the wiper motor
may fail.
Clear ice or packed snow from the
wiper blades before using the
wipers. Carefully loosen or thaw
wipers that are frozen to the
windshield.
Do not operate the wiper on a dry
windshield surface. Otherwise, the
windshield surface may sustain
damage.
Windshield Washer
{Warning
At extremely low temperatures,
washer fluid may freeze on the
windshield after being sprayed,
obstructing your forward view. In
(Continued)
Warning (Continued)
such a case, warm up the
windshield before using the
windshield washer.
Windshield washer fluid is sprayed
over the windshield when this switch
is pressed. At the same time, the
windshield wiper operates.
To spray washer fluid on the
windshield, push the button on the
end of the combination switch lever.
The spray will continue as long as
you hold in the button.

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
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Instruments and Controls 67
If windshield washer fluid does not
come out in sufficient quantity,
immediately release the switch.
Otherwise, the windshield surface
may sustain damage.
If windshield washer fluid does not
come out, release the windshield
washer switch immediately.
Otherwise the motor may seize up.
Do not hold the switch pressed for
more than 30 seconds. Otherwise,
the washer pump may sustain
damage.
Check the washer fluid level
regularly. Do it often when the
weather is bad.
Use a good quality windshield
antifreeze to help prevent freezing
damage, and for better cleaning.
When the vehicle is used in a
cold-climate region or during the
winter:
.Use washer fluid with
appropriate concentration for the
season to prevent frozen fluid. .
Fill the washer fluid reservoir
only 3/4 full to allow for
expansion if the temperature
should fall low enough to freeze
the solution.
See Washer Fluid 0241 for
information on filling the windshield
washer fluid reservoir.
Power Outlets
You can plug in auxiliary electrical
equipment. Just flip the outlet cover
open from the left edge of the cover
and follow the proper installation
instructions that are included with
any electrical equipment you install. These circuits are protected by a
fuse and have maximum current
loads.
When using accessory power
outlets, total maximum electrical
load must not exceed 120W. Always
turn off any electrical equipment
when not in use.
Leaving electrical equipment on for
extended periods will drain your
battery.
Cigarette Lighter
The cigarette lighter can be used
when the engine control switch is in
the ACC or ON position.

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
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Instruments and Controls 69
Put out lit cigarettes on the
crush-out tab. To empty the ashtray,
hold the lid and pull the ashtray up
and out.
Rear Ashtray (Crew CabModel Only)
Pull the ashtray towards you to use
it. Put out lit cigarettes on the
crush-out tab. The ashtray cannot
be removed. To empty the ashtray,
turn it down while pushing the
crush-out tab to remove cigarette
butts into an appropriate container.
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.