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 21
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 022.
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
24 Keys, Doors, and Windows
operation). If you want to stop the
automatic movement of the window
before it lowers completely, raise the
switch lightly.
To Close the Driver’s Window
Lightly raising the driver-side
window switch will cause the
driver's window to move up until the
switch is released.
To Open the Passenger ’s Window
The passenger's window continues
to lower while the passenger-side
switch on the driver's door is being
pressed.
To Close the Passenger ’s Window
The passenger's window continues
to move up while the
passenger-side switch on the
driver's door is being raised.
Window Switches on
Passenger ’s Door and Rear
Doors (If equipped)
The power window switch on the
passenger's door can raise and
lower the passenger's side window only, while, if equipped, the rear
power window switches can raise
and lower the rear door windows.
{Warning
Be sure to warn passengers not
to let any part of the body
become trapped or caught in a
moving window.
You and others could be seriously
injured.
The window continues to lower
while the window switch is being
pressed and continues to rise while
the switch is being raised. It will
stop moving at any position when
the switch is released.
When the rear power window lock
switch is in the “LOCK”position, it is
not possible to open and close the
rear windows.
Window Switches on Center of
Dashboard (Crew Cab Model)
The power window switch on the
instrument panel and rear door can
raise and lower the rear door
window.
To Open a Rear Window
Rear Power Window Switch
The window glass will move
downward while you are pushing
the bottom part of the switch.
To Close a Rear Window
The window glass will move upward
while you are pushing the top part of
the switch.
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
26 Seats and Restraints
Seats and
Restraints
Front Seats
Seat Position . . . . . . . . . . . . . . . . . . 26
Rear Seats
Rear Seats (CrewCab Only) . . . . . . . . . . . . . . . . . . . . 30
Seat Belts
Seat Belts . . . . . . . . . . . . . . . . . . . . . 31
Three-Point Seat Belt . . . . . . . . . . 33
Seat Belt Use DuringPregnancy . . . . . . . . . . . . . . . . . . . . 35
Lap Belt . . . . . . . . . . . . . . . . . . . . . . . 36
Seat Belt Extender . . . . . . . . . . . . . 37
Safety System Check . . . . . . . . . . 37
Seat Belt Care . . . . . . . . . . . . . . . . . 37
Child Restraints
Child Restraint Systems . . . . . . . 39
Front Seats
Seat Position
{Warning
Use caution when adjusting the
seat, as failure to do so could
cause injury. You and others
could be seriously injured.
{Warning
Never allow children to adjust
their seats themselves; an adult
should adjust the seat for
occupants who are children. You
and others could be seriously
injured.
{Warning
Adjust the seat only before you
start driving. Adjusting the seat
while the vehicle is in motion
must be avoided not only
because the unlocked seat will
move back and forth unstably,
preventing you from taking the
correct position, but might also
cause you to lose control of the
vehicle, possibly resulting in an
accident. You and others could be
seriously injured.
{Warning
Try to move the seat without
unlatching it after making
adjustments to check that it is
completely locked. A loosely
locked seat may move
unexpectedly and your position
might then become unstable; this
could lead to an accident. Take
(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
Seats and Restraints 27
Warning (Continued)
the vehicle to your dealer for
service if you find that your seat
adjusters do not latch. In addition,
the seat belt will not operate
properly if the seatback is not
completely locked. You and
others could be seriously injured.
{Warning
Driving with the seat excessively
reclined could be very dangerous
in the event of a collision or
sudden stop. Raise the seatback,
and apply the seat belt correctly
while sitting straight in the seat.
You and others could be seriously
injured.
{Warning
Do not place a cushion or similar
object between your back and the
seatback. Doing so not only
affects the stability of your driving
position but also prevents the
seat belt from working effectively
in the event of a collision. You
and others could be seriously
injured.
{Warning
Do not place any objects under
the seat. If there are any objects
under the seat, the seat could be
locked in an improper position.
You and others could be seriously
injured.
{Warning
Before making adjustments,
check that the seat rails are free
of anything that could obstruct the
locking of the seat. Be careful that
your hand or foot does not
become trapped in the seat or
rails when adjusting the seat. You
and others could be seriously
injured.
{Warning
When adjusting the seat, be
careful that the seat does not hit
passengers or objects. Doing so
could cause injury to passengers,
or damage objects. 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
28 Seats and Restraints
{Warning
Make sure not to hit passengers
or luggage when adjusting your
seat. You and others could be
seriously injured.
{Warning
When adjusting the seat, or when
getting up from the seat, do not
put your hand or other objects
under the seat or near moving
parts. Doing so could cause injury
or damage to objects.
Driver’s Seat
The driver's seat must be adjusted
so that when you sit well back in the
seat, you can fully press the pedals
without moving your back from the
seatback, and you can operate the
steering wheel easily and freely.
After making adjustments, check
that the seat is completely locked. Adjusting the seat for a correct
driving posture is a fundamental
part of safe driving.
Forward/backward Adjustment
While raising the unlock lever, move
the seat forward or backward.
Release the lever when the seat is
in the desired position. After making
adjustments, try to move the seat
back and forth to check that it is
fully locked.
Reclining Adjustment
{Warning
To reduce the risk of sliding under
the lap belt during a collision, an
occupied reclining seat should not
be reclined any more than
needed for comfort. The seatback
and seat belts provide best
restraint only when the rider is
sitting well back and straight up in
the seat. (The lap belt is designed
to spread the force of a collision
over the hipbone. If you are
reclined, the lap belt may slide
past your hips and apply restraint
forces directly to the abdomen.
Therefore, in the event of a
collision, the risk of personal
injury will increase with increasing
recline of the seatback). 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
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
Seats and Restraints 33
Warning (Continued)
Do not use one seat belt for more
than one person. If worn by more
than one person, the seat belt
would not work effectively in a
collision or sudden stop.
Have seat belts inspected and,
if necessary, replaced by the
nearest dealer when the webbing
becomes frayed or worn and/or
when the buckle or other
mechanical parts fail to work
properly.
If your vehicle has been involved
in a collision, the seat belts worn
at the time may have lost their
original strength due to impact
even if they appear intact. These
seat belts must be inspected and,
if necessary, replaced by the
nearest dealer.(Continued)
Warning (Continued)
Be careful to keep the buckles
and retractors free of dust and
foreign matter. (This may jam the
retractor or damage the belt.)
Do not let the belt system
become damaged by the door
or seat.
Do not let the belt twist while it is
rewinding: it may cause the
retractor to jam so it will not
rewind further. If it is not fully
rewound, the belt cannot be
pulled out. Should the belt jam,
you may be able to release it by
working the belt in and out until
the belt rewinds far enough to
unlock. However, if the belt
remains jammed or other parts of
the restraint system do not work
properly, have your dealer
service it.(Continued)
Warning (Continued)
Wearing seat belts is a legal
requirement. All other passengers
must wear seat belts. The driver
is responsible not only for
wearing a seat belt himself/herself
but also for prompting all
passengers to wear their seat
belts. It is necessary, however, to
check with a doctor about the
appropriateness of a seat belt for
an expectant mother or a
passenger with a chest/abdominal
condition.
Three-Point Seat Belt
{Warning
The shoulder belt should be
adequately positioned on your
shoulder but should not touch
your neck and/or face. The
shoulder belt could harm you in a
(Continued)