2017 CHEVROLET LOW CAB FORWARD engine

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
Instruments and Controls 97
Vehicle Messages
Vehicle Messages
(Diesel Only)
The Driver Information Center (DIC)
will display warnings, messages,
and other operation-related
information to alert of system
failures or other necessary checks
that should be performed. Use the
DIC selector to choose the desired
screen page or function.
Engine Overheat Warning
Light
OVERHEAT
This message displays and a
warning light appears when the
engine has overheated and the
engine coolant temperature gauge
needle reaches the red zone. At the
same time a buzzer sounds.
Immediately pull off to a safe place
to take the necessary actions and
check the vehicle. Do not shut down
an overheating engine immediately.Otherwise, the engine may seize
up. Take appropriate actions for
engine overheating.
This light will also activate the
engine alarm and automatic
shutdown system, if equipped.
See
Engine Alarm and Automatic
Shutdown (Diesel Only) 0174,
Engine Overheating 0269, Engine
Coolant 0263, and Engine Coolant
Temperature Gauge 082.
{Warning
When the engine coolant is still
hot, do not remove the radiator
cap. Hot vapor will come out and
you may be scalded. Add engine
coolant only when the engine
coolant temperature has dropped.
If this light comes on and stays on
while you are driving, your engine
coolant might have overheated
and your engine may be too hot.
You should pull off the road, stop
your vehicle and take appropriate
actions for engine overheating.
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 Coolant 0263 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 (Diesel Only) 0174 and
Engine Shutdown Warning Light
0 91.
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

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
98 Instruments and Controls
section and make sure the warning
light goes out. SeeWater in Fuel
(Diesel) 0236.
If you continue driving with the
message displayed, the fuel
injection system may fail. See Water
in Fuel (Diesel) 0236.
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 0263.
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 0232,
Fuel Gauge 081, and Running Out
of Fuel (Diesel) 0238.
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
0 180. If your vehicle is equipped with a
power take-off (PTO), monitor the
DIC for DPF related indicators. PTO
and other slow speed applications
may require more attention.Selectable (Switch)
Regeneration Required
Warning Light
SEL REGEN. REQUIRED
Performing the
“Selectable”
regeneration: After the Checking PM
Level Light is shown, this light
comes on in amber when
“Selectable” regeneration is
possible. When the DPF switch is
pressed with this light ON,
"Selectable" regeneration starts.
When the selectable regeneration or
switch regeneration is interrupted:
This light (amber) comes on when
the "Selectable" regeneration or
"Switch" regeneration is interrupted.
When this light comes on, perform
DPF regeneration promptly by
following the procedure for the
"Switch" regeneration. If you
continue to operate the vehicle
without performing DPF

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
Instruments and Controls 99
regeneration, the color of this light
changes to red from amber. When
this light comes on in red, perform
DPF regeneration immediately by
following the procedure for the
switch regeneration. 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 situation happens,
the vehicle must be serviced. See
Diesel Particulate Filter0180.
If your vehicle is equipped with a
power take-off (PTO), monitor the
DIC for DPF related indicators. PTO
and other slow speed applications
may require more attention.
Regeneration in Progress
Light
REGEN. IN PROGRESS
When this light is ON, DPF
regeneration is in progress. When
the vehicle is stationary, the exhaust
sound changes as the engine speed
increases. Also, operating sounds of
the exhaust throttle may be heard. Keep people and flammable objects
away from the exhaust pipe,
because the exhaust temperature
becomes high during regeneration.
When regeneration is completed,
the light goes out automatically. See
Diesel Particulate Filter
0180.
During extended engine idling, this
light may appear on the DIC and the
DPF may be automatically
regenerated.
Checking PM Level Light
CHECKING PM LEVEL
In the case of performing the
"Selectable" regeneration, this light
comes on when the DPF switch is
kept held down. While this light is
ON, the system is checking whether
or not the "Selectable" regeneration
is possible. If the "Selectable"
regeneration is possible, the light
changes to the selectable (switch)
regeneration required warning light.
If the indication does not change to
the selectable (switch) regeneration
required warning light, the
"Selectable" regeneration is not
possible.
Exhaust System Warning Light
EXH. SYSTEM
This light comes on when the SCR
system detects a malfunction or
incorrect DEF. SCR system will turn
on other indicator lights and reduce
engine power in progressive stages
to encourage you to have the
malfunction corrected. Continuing to
drive for too long after this light
turns on will eventually result in a
severe vehicle speed limitation.
If this light turns on, promptly have
the vehicle inspected and serviced
at your dealer. See Diesel Exhaust
Fluid 0189.
Refill Diesel Exhaust Fluid
(DEF) Warning Light
REFILL DEF
This message displays and a
warning light appears when the DEF
tank is almost empty. Add DEF as
soon as possible.
Engine power will be reduced and
vehicle speed will be limited when
this light is activated. Failure to
promptly refill the DEF tank will

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
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.-
10716700) - 2017 - crc - 12/6/16
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.

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
102 Instruments and Controls
Diesel Vehicles
A warning buzzer sounds under the
following conditions:
.Brake booster —continuous
beep. See Brake System
Warning Light (Parking Brake
Light) 084
. Engine overheat —
continuous beep
. Low engine coolant —beep
. Engine alarm and automatic
shutdown —beep
. Diesel particulate filter (DPF)
switch regeneration —Three
short beeps or three long beeps
. Selective catalytic reduction
(SCR) system —one short
beep, three short beeps, nine
quick beeps, continuous beep
See Diesel Exhaust Fluid 0189 and
Engine Alarm and Automatic
Shutdown (Diesel Only) 0174.

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
Lighting 103
Lighting
Exterior Lighting
Exterior Lamp Controls . . . . . . . 103
Headlamp High/Low-BeamChanger . . . . . . . . . . . . . . . . . . . . 104
Flash-to-Pass . . . . . . . . . . . . . . . . 104
Hazard Warning Flashers . . . . . 105
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . 105
Cornering Lamps . . . . . . . . . . . . . 106
Interior Lighting
Instrument Panel Illumination Control . . . . . . . . . . . . . . . . . . . . . . 106
Cargo Lamp . . . . . . . . . . . . . . . . . . 107
Dome Lamps . . . . . . . . . . . . . . . . . 107
Exterior Lighting
Exterior Lamp Controls
Turning the light control switch to
the following positions will cause the
relevant lights to illuminate.
The light control switch can be used
when the engine control switch is
placed in the LOCK or ACC
position. Do not operate the
combination lights for an extended
time period with the engine stopped.
Otherwise, the battery may go dead,
making it impossible to restart the
engine.
9: Turns off all exterior lights.
;:Turns on the parking lights
including all exterior lights, except
the headlights.
2: Turns on the headlights
together with the parking lights,
sidemarker lights, roofmarker lights,
taillights, license plate light, and
instrument panel lights.
When you start the engine in
daytime, with the lighting switch off,
and release the parking brake, the
daytime running lights will come on.
See Daytime Running Lamps (DRL)
Indicator Light 092 and Turn and
Lane-Change Signals 0105.

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
Lighting 105
Hazard Warning Flashers
Use the hazard warning light flasher
to warn other drivers any time your
vehicle becomes a traffic hazard,
day or night. With the engine control
switch in any position or the key
removed, when this switch is
pressed, all of the turn signal lights
and the turn signal indicator lights
flash to signal an emergency. To
turn off the hazard lights, press the
switch again.
Do not leave the hazard warning
light flasher operating for an
extended time period with theengine stopped. Otherwise, the
battery may go dead, making it
impossible to restart the engine.
Both indicator lights flash when the
hazard warning flasher switch is
operated irrespective of the position
of the engine control switch.
The individual turn signals do not
work when the hazard flasher is
turned on.
Turn and Lane-Change
Signals
When turning left or right, move the
lever up or down to flash the turn
signal light.
When the turn is completed, the
signal will cancel and the lever will
return to horizontal.
If the steering wheel is only turned a
small amount, turn off the signal
manually. Lightly press and hold the
lever up or down when overtaking or
changing lanes. The turn signal light
continues flashing as long as the