check engine CHEVROLET LOW CAB FORWARD 2019 Owner's Guide

Chevrolet Low Cab Forward 5.2L Diesel Engine 4500/5500 Series (GMNA-
Localizing-U.S.-12407814) - 2019 - crc - 12/13/17
Seats and Restraints 47
To Unfasten:
Push the button on the buckle. As
the belt automatically retracts, let it
be taken up slowly by holding on to
the latch plate until the belt is fully
retracted.
While being automatically retracted,
the seat belt could damage a
nearby window or interior trim
unless the latch plate is properly
held. Hold the latch plate to ensure
that the belt is taken up slowly.
Before closing the door, check that
the retracted seat belt is taut.
A slack belt could become trapped
in the door or seat rail.When the passenger's seat belt is
fully taken up (or not pulled out),
check that the stopper is holding the
belt in a fully taut state.
Emergency Locking Retractor
(ELR) Function
The three-point seat belts are
provided with an Emergency
Locking Retractor (ELR) function.
The ELR normally allows the seat
belt to move in and out freely as the
occupant moves. However, it locks
the seat belt to restrain the
occupant when a forward force
resulting from a collision or sudden
stop acts on the occupant.
The ELR also locks the seat belt
when the belt is pulled out quickly.
If this happens, allow it to retract
once and then pull it out slowly.
Seat Belt Use During
Pregnancy
{Warning
Unless the seat belt is correctly
worn, it may dig into the abdomen
in the event of hard braking or a
collision, harming not only the
expectant mother but also the
unborn child, putting them both in
danger of serious injuries or
death.

Chevrolet Low Cab Forward 5.2L Diesel Engine 4500/5500 Series (GMNA-
Localizing-U.S.-12407814) - 2019 - crc - 12/13/17
48 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 4500/5500 Series (GMNA-
Localizing-U.S.-12407814) - 2019 - crc - 12/13/17
Seats and Restraints 49
4. Position the seat belt acrossthe lap as low as possible on
the hips. Pull the fold-back end
of the belt (upper side) until the
belt is adjusted to a snug fit.
To Unfasten:
Push the button on the buckle to
unfasten the belt.
The center seat belt
(length-adjustable two-point belt) is
designed so that it cannot be
connected with any of the
windowside seat belts (three-point
seat belts with ELR).
Seat Belt Extender
If the vehicle's seat belt will fasten
around you, you should use it. But if
a seat belt isn't long enough to
fasten, your dealer can order you an
extender. When you go in to order it,
take the heaviest coat you will wear,
so the extender will be long enough
for you. The extender will be just for
you, and just for the seat in your
vehicle that you choose. Do not let
someone else use it, and use it only
for the seat it is made to fit. To wear
it, just attach it to the regular
seat belt.
Safety System Check
Now and then check that the belts,
buckles, latch plates, retractors,
anchorages and guide loops work
properly; look for loose parts or
damage (without disassembly) that
could keep the restraint system from
doing its job. Have a belt assembly
replaced if the webbing has been
cut or otherwise damaged. Replace
belts, retractors, and hardware used
in all but a minor collision. Also,
restraint systems should be replaced and anchorages properly
repaired if they were in areas
damaged by a collision, whether the
belt was in use or not. If there is any
question, replace the belt system.
Damage, whether visible or not,
could result in a serious personal
injury in the event of an accident.
Seat Belt Care
{Warning
Keep belts clean and dry.
Clean seat belts only with mild
soaps and lukewarm water.
Do not bleach or dye belts since
this may severely weaken them.
Seat belt webbing can lose its
strength when bleached or
redyed, or when cleaned using
gasoline, paint thinners or other
volatile substances.
Do not disassemble the seat belt
mechanism in order to remove
any foreign material or objects
(Continued)

Chevrolet Low Cab Forward 5.2L Diesel Engine 4500/5500 Series (GMNA-
Localizing-U.S.-12407814) - 2019 - crc - 12/13/17
50 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 4500/5500 Series (GMNA-
Localizing-U.S.-12407814) - 2019 - crc - 12/13/17
Seats and Restraints 51
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 4500/5500 Series (GMNA-
Localizing-U.S.-12407814) - 2019 - crc - 12/13/17
64 Instruments and Controls
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . . 65
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Windshield Wiper/Washer . . . . . . 66
Power Outlets . . . . . . . . . . . . . . . . . 67
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . . 68
Instrument Cluster . . . . . . . . . . . . . 69
Speedometer . . . . . . . . . . . . . . . . . . 70
Odometer . . . . . . . . . . . . . . . . . . . . . . 70
Trip Odometer . . . . . . . . . . . . . . . . . 70
Tachometer . . . . . . . . . . . . . . . . . . . . 71
Fuel Gauge . . . . . . . . . . . . . . . . . . . . 71
Engine Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . . . 72
Diesel Exhaust Fluid (DEF) Gauge . . . . . . . . . . . . . . . . . . . . . . . . 72
Seat Belt Reminders . . . . . . . . . . . 72
Battery Warning Light . . . . . . . . . . 73
Malfunction Indicator Lamp (Check Engine Light) . . . . . . . . . 73
Service Vehicle Soon Light . . . . 74 Brake System Warning Light
(Parking Brake Light) . . . . . . . . . 74
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . . 76
Exhaust Brake Light . . . . . . . . . . . 77
Service Transmission Warning
Light . . . . . . . . . . . . . . . . . . . . . . . . . 77
Automatic Transmission Fluid Temperature Warning Light . . . 78
Overdrive Off Light . . . . . . . . . . . . . 78
Wait-to-Start Light . . . . . . . . . . . . . 79
Engine Oil Pressure Light . . . . . . 79
Engine Oil Level Indicator Light . . . . . . . . . . . . . . . . . . . . . . . . . 79
Diesel Exhaust Fluid (DEF) Warning Light . . . . . . . . . . . . . . . . 80
Engine Shutdown Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . 80
Idle Shutdown Light . . . . . . . . . . . . 80
Reduced Engine Power Light . . . . . . . . . . . . . . . . . . . . . . . . . 81
High-Beam On Light . . . . . . . . . . . 81
Daytime Running Lamps (DRL) Indicator Light . . . . . . . . . . . . . . . . 81
Cruise Control Light . . . . . . . . . . . 82
Information Displays
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . 82
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . . 86
Warning Buzzers . . . . . . . . . . . . . . 91

Chevrolet Low Cab Forward 5.2L Diesel Engine 4500/5500 Series (GMNA-
Localizing-U.S.-12407814) - 2019 - crc - 12/13/17
Instruments and Controls 67
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.
SeeWasher Fluid 0262 for
information on filling the windshield
washer fluid resevoir.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.

Chevrolet Low Cab Forward 5.2L Diesel Engine 4500/5500 Series (GMNA-
Localizing-U.S.-12407814) - 2019 - crc - 12/13/17
68 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.

Chevrolet Low Cab Forward 5.2L Diesel Engine 4500/5500 Series (GMNA-
Localizing-U.S.-12407814) - 2019 - crc - 12/13/17
70 Instruments and Controls
Speedometer
The speedometer shows the
vehicle's speed in either kilometers
per hour (km/h) or miles per
hour (mph).
Odometer
The odometer shows how far the
vehicle has been driven, in either
kilometers or miles.
Each time the reset knob is pressed
with the engine control switch in the
ON position, the odometer/trip meter
shows ODO, TRIP A, and TRIP B in
this sequence. With the key
removed, the odometer and trip
meter continue to indicate for about
five minutes.
Odometer Check Switch
Press the Odometer Check switch
to display the odometer and trip
meter mileage after the key is
turned off. The fuel gauge will also
operate when this switch is pressed.
The DIC and some lights will
illuminate on the instrument panel.
Trip Odometer
The trip odometer shows how far
the vehicle has been driven since
the trip odometer was last reset.
Press the trip odometer reset stem
next to the odometer to switch
between the odometer and trip
odometer.To reset the trip odometer to zero,
press and hold the trip odometer
reset stem while TRIP A or TRIP B
is displayed. The engine control
switch should be in the ON position.
When the battery is disconnected,
TRIP A and TRIP B will be reset to
zero. The per trip fuel economy is
also reset by the TRIP B reset. See
Driver Information Center (DIC)
0
82.
When you turn the engine control
switch to the ON position, the
odometer/trip odometer shows what
was displayed the last time the
engine control switch was turned to
LOCK or ACC.
To set the odometer to display each
time you turn the engine control
switch to the ON position, turn the
engine control switch to LOCK or
ACC while the odometer is
displayed. With the reset stem
pressed, turn the engine control
switch to the ON position and then
within three seconds, turn the
engine control switch back to the

Chevrolet Low Cab Forward 5.2L Diesel Engine 4500/5500 Series (GMNA-
Localizing-U.S.-12407814) - 2019 - crc - 12/13/17
Instruments and Controls 71
LOCK or ACC position. Follow the
same procedure to cancel the
setting.
Tachometer
The tachometer displays the engine
speed in revolutions per
minute (rpm). The red zone
indicates a range of dangerous
engine speeds beyond permissable
levels. Do not drive your vehicle
with the needle in the red zone.
Caution
Exercise extreme care when
shifting down on a steep
downslope. The engine speed
may exceed the critical speed,
which can damage the vehicle.
Fuel Gauge
With the engine control switch in the
ON position, the fuel gauge
indicates about how much fuel is left
in the tank.To check the fuel level with the
engine control switch in the LOCK
position, press the Odometer Check
switch.
Fill the tank well before it
approaches empty. After filling up
the fuel tank, it takes awhile for the
fuel gauge needle to stabilize after
the engine control switch is turned
to the ON position. If the fuel tank is
filled while the engine is off, but the
engine control switch is in the ON
position, the fuel gauge needle
takes awhile to show the correct
reading.
See
“Low Fuel Warning Light” in
Driver Information Center (DIC) 082
and Running Out of Fuel 0233.