2020 CHEVROLET LOW CAB FORWARD fuel filter

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
Instruments and Controls 73
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
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.

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
Instruments and Controls 75
Low Coolant Warning Light
LOW COOLANT
If this message and light come on,
the system is low on engine coolant
and the engine may overheat.
A warning tone also sounds. If this
light comes on while driving, stop
the vehicle immediately and check
the cooling system for leaks. See
Engine Coolant0243 and have the
vehicle serviced by your dealer. This
light will also activate the engine
alarm and automatic shutdown
system. See Engine Alarm and
Automatic Shutdown 0164 and
Engine Shutdown Warning Light
0 68.
Water Separator (Fuel Filter)
Warning Light
WATER SEPARATOR
This message displays and a
warning light appears when the
level in the water separator on the
fuel line is beyond the specified
level. Drain water following the
instructions in the Water in Fuel section and make sure the warning
light goes out. See
Water in Fuel
0 221.
If you continue driving with the
message displayed, the fuel
injection system may fail. See Water
in Fuel 0221.
Air Cleaner Light
CHECK AIR FILTER
This message displays and a
warning light appears when the next
air cleaner element service interval
is near or has already been
reached.
Replace the air cleaner element.
See Engine Air Cleaner/Filter 0243.
Low Fuel Warning Light
LOW FUEL
This message displays and a
warning light appears when the fuel
level in the tank becomes too low
while the engine is running. Add fuel
at the earliest possible time. If the
vehicle runs out of fuel, air bleeding
procedure must be performed. See
Fuel for Diesel Engines 0218,
Fuel Gauge 059, and Running Out
of Fuel 0224.
Regeneration Required
Warning Light
REGEN. REQUIRED
This light (amber) comes on when
Running regeneration or Switch
regeneration is required. When this
light comes on, perform DPF
regeneration soon. If the engine
continues to run without performing
DPF regeneration, this light will
change color from amber to red.
If this light turns red, perform DPF
regeneration immediately. If you do
not perform DPF regeneration, the
check engine malfunction indicator
light and reduced engine power
indicator light will come on,
imposing performance restriction on
the vehicle. If this happens, the
vehicle must be serviced at your
dealer. See Diesel Particulate Filter
0 171.

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
78 Instruments and Controls
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
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. When
this 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 the display
reaches zero and the screen is
selected.
For resetting or setting maintenance
data intervals, see
Driver
Information Center (DIC) 070.

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
128 Driving and Operating
Driving and
Operating
Driving Information
Driver Behavior . . . . . . . . . . . . . . . 129
Driving for Better FuelEconomy . . . . . . . . . . . . . . . . . . . . 129
Distracted Driving . . . . . . . . . . . . 130
Control of a Vehicle . . . . . . . . . . . 130
Braking . . . . . . . . . . . . . . . . . . . . . . . 134
Steering . . . . . . . . . . . . . . . . . . . . . . 140
Driving on Wet Roads . . . . . . . . 140
Hill and Mountain Roads . . . . . 141
Winter Driving . . . . . . . . . . . . . . . . 142
If the Vehicle Is Stuck . . . . . . . . 144
Emergencies (Troubleshooting) . . . . . . . . . . . 145
Emergencies (Disabled Vehicle) . . . . . . . . . . . . . . . . . . . . . 155
Starting and Operating
New Vehicle Break-In . . . . . . . . . 156
Pedals . . . . . . . . . . . . . . . . . . . . . . . . 157
Ignition Positions . . . . . . . . . . . . . 157
Starting and Stopping theVehicle . . . . . . . . . . . . . . . . . . . . . . 159
Operating Temperature . . . . . . . 162
Winter Cover . . . . . . . . . . . . . . . . . 163 Engine Heater . . . . . . . . . . . . . . . . 163
Engine Alarm and Automatic
Shutdown . . . . . . . . . . . . . . . . . . . 164
Idle Shutdown . . . . . . . . . . . . . . . . 164
High Idle System . . . . . . . . . . . . . 165
Engine Checks Before Operating . . . . . . . . . . . . . . . . . . . 166
Parking over Things That Burn . . . . . . . . . . . . . . . . . . . 167
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . 168
Running the Vehicle WhileParked . . . . . . . . . . . . . . . . . . . . . . 170
Diesel Particulate Filter
Diesel Particulate Filter . . . . . . . 171
Diesel Exhaust Fluid
Diesel Exhaust Fluid . . . . . . . . . . 180
Automatic Transmission
Automatic Transmission . . . . . . 196
Selector Lever . . . . . . . . . . . . . . . . 205
Overdrive Off . . . . . . . . . . . . . . . . . 206
Brakes
Antilock BrakeSystem (ABS) . . . . . . . . . . . . . . . 207
Parking Brake . . . . . . . . . . . . . . . . 211
Exhaust Brake . . . . . . . . . . . . . . . . 213
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . 214
Fuel
Fuel for Diesel Engines . . . . . . . 218
Biodiesel . . . . . . . . . . . . . . . . . . . . . 219
Cold Weather Operation . . . . . . 221
Water in Fuel . . . . . . . . . . . . . . . . . 221
Running Out of Fuel . . . . . . . . . . 224
Filling the Tank . . . . . . . . . . . . . . . 225
Conversions and Add-Ons
Add-On Electrical Equipment . . . . . . . . . . . . . . . . . . 227
Power Take-Off (PTO) . . . . . . . . 227

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
Driving and Operating 147
SymptomCauseCorrective Action Reference
Engine does not
start Starter turns over No fuel
Make sure there are no
fuel leaks, and then
add fuel-
Air in the fuel system Bleed fuel system See
Running Out
of Fuel 0224
Fuel filter clogged
4-
Fuel is frozen Warm fuel pipe with hot
water or wait until it gets
warmer
-
Common rail system is
faulty
4-
Preheating system is
faulty
4-
Engine starts, but immediately stops Idling speed too low
4-
Fuel filter is clogged
4-
Air cleaner is clogged
4-
Common rail system is
faulty
4-
Fuel system is faulty
4-

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
148 Driving and Operating
SymptomCauseCorrective Action Reference
Unsteady engine speed There is water or air in
the fuel system
Drain water from fuel
filter or bleed the systemSee
Running Out
of Fuel 0224 or
Water in Fuel
0 221
Fuel system is faulty
4-
White exhaust smoke Engine not sufficiently
warming up
Allow the engine to
warm up
-
Too much engine oil Correct the oil level See
Engine Oil
0 235
Engine Control system
faulty
4-
Fuel system faulty
4-
Exhaust injector
4-
Continuous idling for a
long period (more than
two hours) With the vehicle
stationary in a place
where it will not obstruct
traffic, hold down the
accelerator pedal and
check that white smoke
is not emitted
-

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
Driving and Operating 149
SymptomCauseCorrective Action Reference
Black exhaust smoke Engine Control system
faulty
4-
The air cleaner clogged
4-
Fuel system faulty
4-
Exhaust system clogged
4-
Exhaust injector
4-
Diesel particulate filter
(DPF) faulty
4-

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
Driving and Operating 151
SymptomCauseCorrective Action Reference
Not enough engine power Parking brake not fully
released
Make sure it is fully
released
-
Brake dragging
4-
Air cleaner clogged
4-
Fuel filter clogged
4-
Engine control system
faulty
4-
Common rail system
faulty
4-
Engine faulty
4-
DPF clogged
4-
Brakes not effective Drum-to-lining gap too
large
4-
Air in brake fluid
4-
Brake system failure
4-