Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
16 In Brief
Instrument Panel (Driver Side - Diesel)
1. Instrument Panel Light LevelControl. See Instrument Panel
Illumination Control 0106.
2. Power Take Off (PTO) Main Switch. See Power Take-Off
(PTO) 0242.
3. Power Take Off (PTO) Engine Speed Control Switch. See
Power Take-Off (PTO) 0242. 4. Rear Body Interior Light
Switch. See Cargo Lamp
0 107.
5. Instruments, Warning Lights and Indicator Lights. See
Instrument Cluster 077.
6. Horn Button. See Horn072. 7. Outside Rearview Mirror
Heater Switch. See Heated
Mirrors 040.
8. Cruise Control Main Switch. See Cruise Control (Diesel)
0 224 orCruise Control (Gas)
0 227.
9. Hazard Warning Flasher Switch. See Hazard Warning
Flashers 0105.
10. Diesel Particulate Filter (DPF) Switch. See Diesel Particulate
Filter 0180.
11. Odometer Check Switch. See Odometer 080.
Engine Oil Level Check Switch.
See Engine Oil (Gasoline)
0 257 orEngine Oil (Diesel)
0 251.
12. Door Lock Switch. See Power
Door Locks 039.
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Instruments and Controls 89
P (Park). With the engine idling, wait
until the light goes off. If the light
goes off, you can drive the vehicle
again. If the light does not go off,
have the automatic transmission
lubricating system checked by your
dealer.
Caution
Driving with the ATF warning light
constantly on can cause serious
mechanical damage to the
automatic transmission.
See Automatic Transmission 0204.
Overdrive Off Light
(Diesel Only)
This light should come on briefly
when the engine control switch is
turned on as a check to make sure
the light is working. It should go out
automatically.
This light comes on when the
overdrive off switch on the selector
lever is turned on. Overdrive will not
operate even when the automatic
transmission is in D, unless engine
speed is excessive.
Wait-to-Start Light
For diesel vehicles, this light comes
on when the engine control switch is
turned to the ON position and goes
out when preheating is complete.
See Starting and Stopping the
Vehicle (Gasoline Only) 0165 or
Starting and Stopping the Vehicle
(Diesel Only) 0168.
Engine Oil Pressure Light
This light should come on briefly
when the engine control switch is
turned to the ON position, and then
should go out after the engine is
started.
This light comes on when the
engine oil pressure has fallen below
the normal level while the engine is
running or the oil pressure across
the oil filter rises above the normal
level while the engine is running.
If the warning light comes on while
driving, immediately pull off to a
safe place and stop the engine.
Check the oil level in the engine
crankcase. If the oil level is normal,
restrictions are in the oil filter or
within the lubricating system. Have
the vehicle inspected at your dealer.
Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
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Instruments and Controls 95
decrease the year. While in the year
setting screen, press the DIC
selector once to switch to the month
setting screen. The month segment
will flash. Use the same method to
set the month. While in the month
setting screen, press the DIC
selector again to switch to the day
setting mode. Adjust the day using
the selector.
Press and hold the DIC selector to
complete the calendar setting.
When complete, the normal
calendar display will resume. Use
this same method to set the hour
and minute when in the clock setting
screen.
Dimmer
The brightness of the DIC can be
adjusted while the light control
switch is off. Select this screen and
turn the DIC selector clockwise or
counterclockwise to brighten or dim
the illumination. The brightness is
linked to the adjustment of the
instrument panel light level control
while the light control switch is on.
SeeInstrument Panel Illumination
Control 0106.Warning Lights and Messages
.
Engine Overheat Warning Light
. Low Coolant Warning Light
. Water Separator Warning Light
. Air Cleaner Light
. Low Fuel Warning Light
. Regeneration Warning Lights
. Exhaust System Warning Light
. Refill DEF Warning Light
. DIC Errors
. Maintenance Data
. Hour Meter
See Vehicle Messages (Diesel
Only) 097.
Maintenance Data Functions
Display/Not Display the
Maintenance Data Function
Maintenance Light: On the DIC, go
to the Maintenance Indicator Light.
Switch the display by pressing and
holding the DIC selector for more
than two seconds. Turn the DIC
selector clockwise or
counterclockwise to switch the 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
Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
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100 Instruments and Controls
result in a severe vehicle speed
limitation. SeeDiesel Exhaust Fluid
0 189.
When DIC ERROR is Displayed
ERROR
If the system has not yet been able
to access maintenance data,
ERROR is shown on the DIC.
If ERROR does not change
automatically to a distance or other
maintenance indication, have your
vehicle serviced at your dealer.
Maintenance Data Indicator
Lights
Maintenance data indicator lights
appear on the DIC when each
maintenance item is selected or
when the next change or service
interval of the item is near or has
been reached.
The distance or time shown is the
remaining or excess of them to /
from the change or service timing.
The positive distance or time shows
the remaining of that and the
negative distance or time shows the
excess of that. For the items listed below, the displayed color will
change from green to amber when
remaining distance is below
1 000 km (1,000 mi) and the screen
is selected.
These screens are also displayed
when the engine control switch
turns to the ON position after above
notification timing. The message
remains on the display until the DIC
selector is pressed once or the
vehicle is started.
The maintenance data function
indicates the distance remaining
before the next scheduled
maintenance. Scheduled
maintenance time is approaching
when the display turns from green
to amber. Have the vehicle checked
and serviced at your dealer as soon
as possible.
The vehicle needs to be maintained
more often if it is driven in severe
conditions.
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
Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
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Instruments and Controls 101
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. Whenthis 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 remaining
time is below 0 times and the
screen is selected.
For resetting or setting maintenance
data intervals, see
Driver
Information Center (DIC) (Diesel
Only) 093.
Hour Meter
HOUR METER
This message and light indicate how
many hours the engine has been
run. The figure(s) on the left side of the decimal point indicate hours
while the figure on the right side
indicates 1/10 of an hour.
Warning Buzzers
A warning buzzer may not sound if
there is a problem with the buzzer
system. If this occurs, the system
needs to be inspected. See your
dealer.
All Vehicles
A warning buzzer sounds under the
following conditions:
.
Seat Belt— continuous beep.
See Seat Belt Reminders 083.
Gasoline Vehicles
A warning buzzer sounds under the
following conditions:
.
Brake booster —continuous
beep. See Brake System
Warning Light (Parking Brake
Light) 084.
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Driving and Operating 171
a gasoline engine. So, your engine
must crank faster than a gasoline
engine before it will start.
To be sure the engine can turn fast
enough to start, use SAE 10W-40
viscosity engine oil when prevailing
temperatures drop below 0 °C (32 °
F). See the oil quality and oil
viscosity recommendations. Using
the proper viscosity oil will make
starting easier down to -23 °C (-10 °
F). When prevailing temperatures
drop below -23 °C (-10 °F), the
optional engine block heater may be
needed for starting.
Maintenance Items to Aid Cold
Weather Starting
Since the basic principle of diesel
engine ignition is based on
compression, the diesel engine is
somewhat harder to start than a
gasoline engine when the
temperature is below freezing.
To help prevent hard starting
problems, special attention should
be given to following normal
maintenance items:1. Neglecting to have the fuel
filter and water separator
serviced can be one of the
major contributors to hard
starting. If water is permitted to
accumulate in the primary filter,
it will freeze and make starting
the engine impossible.
2. Make sure the fuel tank vent is open.
3. Always refuel at the end of a day's operation. Moisture will
condense in an empty tank;
therefore, the tank should be
filled before leaving the vehicle
standing for an extended
period.
Do not use starting aids in the air
intake system. Such aids can cause
immediate engine damage. See
Fuel for Diesel Engines 0232.
Stopping the Engine
When stopping the diesel engine,
take the following steps: 1. Bring the vehicle to a complete stop.
2. Firmly apply the parking brake. 3. Move the selector lever to the
P position and make sure that
the shift indicator shows P.
4. Allow the engine to idle for approximately 3 minutes.
5. Turn the engine control switch to the ACC or LOCK position.
Do not shut down the engine
immediately after driving the vehicle.
Otherwise, a seizure or other
failures may result.
To prevent the battery from going
dead, turn the engine control switch
to the ACC or LOCK position after
stopping the engine. If you leave the
vehicle for an extended period of
time, place the engine control switch
in the LOCK position.
Let the engine idle for 3 minutes
before shutting off the engine. This
allows the turbocharger to slow
down while keeping the bearings
lubricated.
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Driving and Operating 177
example, grass, waste paper, oil or
old tires). Take particular care when
parking in a garage.
Use caution concerning exhaust
gases while the engine is idling. For
diesel vehicles, be particularly
careful when the power take-off
(PTO) is operating (if your vehicle is
equipped with a PTO) or the DPF is
regenerating while the engine is
idling. SeeDiesel Particulate Filter
0 180.
{Warning
It is not recommended that this
vehicle be parked, idled or
operated over combustible
materials such as grass or
leaves. They could touch the hot
exhaust system and start a fire.
This is particularly important if the
exhaust system has not been
properly maintained. Combustible
materials could catch fire from hot
exhaust gases, soot, or sparks
that could escape through
(Continued)
Warning (Continued)
corrosion holes or cracks. You
and others could be seriously
injured.
If operating, parking or idling your
vehicle off-road is unavoidable,
such as in farming, lumbering,
commercial or recreational use:
‐ The driver should be aware
that combustible materials
could catch fire from the
vehicle's hot exhaust
system.
‐ Carry a fire extinguisher
with the vehicle at these
times.
‐ Avoid driving your vehicle
through or over combustible
materials such as leaves,
grass vegetation or stubble
high enough to touch, catch
or collect on its hot exhaust
system.
(Continued)
Warning (Continued)
‐Parking or idling should be
done only in an area where
there are no combustible
materials under the vehicle.
Failure to follow these
instructions could damage
your vehicle or nearby
property.
Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
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180 Driving and Operating
Diesel Particulate
Filter
Diesel Particulate Filter (DPF)
The DPF purifies diesel exhaust
gases of particulate matter (PM). PM
is filtered from the exhaust gas and
collected in the DPF. When PM is
collected to the predetermined level
by the engine control module, the
DPF automatically burns the PM in
a process called regeneration.
Regeneration may not be completed
under certain driving conditions.
If this occurs, the multi-information
display (DIC) will provide prompts to
properly complete DPF
regeneration.
The following sections will provide
details on DPF regeneration. Follow
the steps carefully to keep the DPF
in good working order. SeeDriver
Information Center (DIC) (Diesel
Only) 093, Recommended Fluids
and Lubricants 0378, and Engine
Oil (Gasoline) 0257 orEngine Oil
(Diesel) 0251.
{Warning
Exhaust parts and gases become
very hot when the DPF is being
regenerated.
Parking over flammable items
could allow them to touch hot
exhaust parts under your vehicle
and cause them to ignite. Do not
park over papers, leaves, grass
or other things that can burn. You
and others could be seriously
injured.
This content is to restore the
function of the DPF and it is not a
malfunction. However, the check
engine malfunction indicator light
and reduced engine power indicator
light may come on and the power
output may be limited if driving or
power take-off (PTO) operation is
continued for a long time with the
regeneration required warning light
or selectable (switch) regeneration
required warning light (amber/
red) on. This is to prevent the DPF from
being damaged. When operating
PTO during parking, check to
ensure that the regeneration
required warning light or selectable
(switch) regeneration required
warning light (amber/red) on the DIC
is not on.
Engine oil that supports DPF (low
ash oil) is recommended. Use of low
ash oil extends the maintenance
interval of the DPF filter.
Do not modify the DPF or exhaust
pipe. Changing the alignment,
length or diameter of the exhaust
pipe would adversely affect the
exhaust system's exhaust emission
reduction function. If any
modification is necessary to install a
component to the rear of the
vehicle, consult your dealer.
Although the DPF filter automatically
undergoes regeneration (burning of
the accumulated PM) when a
certain amount of PM has
accumulated, driving conditions can
prevent completion of regeneration.