Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
128 Climate Controls
position, and turn the temperature
control knob fully towards the high
temperature direction.
Set the fan speed control knob to
the maximum speed position.
Bi-Level Heating :Set the outlet
selector knob to the
)position. Set
the air selector lever to the
P
position. Set the temperature control
knob to the middle position.
Adjust the fan speed control knob
as desired. The air from the floor
outlets is warmer than the air from
the upper outlets in this position.
However, when the temperature
control knob is moved to either the
full hot or the full cold position, the
air from the floor outlets and the air
from the upper outlets will be the
same temperature. This position can
give cool upper level air and warm
floor level air when the temperature
control is adjusted in between cold
and hot. This is useful in cool
weather with bright sunlight
conditions. Defogging and Defrosting the
Windshield
Defogging :
Set the outlet selector
knob to the
1position. Set the air
selector lever to the
Pposition.
Turn the temperature control knob
to a high-temperature position
according to your preference. For
defogging in the summer months,
set the temperature control knob to
any desired position.
Set the fan speed control knob to
any speed position, except the off
position. The A/C compressor
automatically operates when the
1
position is selected. Defogging is
performed very effectively with the
dehumidifying effect.
Defrosting : Set the outlet selector
knob to the
1position. Set the air
selector lever to the
Oposition.
Turn the temperature control knob
fully towards the high-temperature
direction. Set the fan speed control
knob to the maximum speed
position. After defrosting, be certain to return
the air selector lever to the
P
position. Failure to do so will cause
the windshield to fog up, impeding
forward visibility.
Cooling
Normal/Moderate Cooling :
This
setting is suitable for extended
periods of cooling or moderate
cooling. Press the A/C switch to the
on position.
Set the outlet selector knob to the
Hposition for normal cooling or set
it to the
)position for moderate
cooling. Adjust the temperature
control knob to the desired position.
Adjust the fan speed control knob
as desired
Maximum Cooling : Set the outlet
selector knob to the
Hposition.
Press the A/C switch to the on
position. Move the air selector lever
to the
Oposition
Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
Climate Controls 129
Turn the temperature control knob
fully towards the low-temperature
direction. Set the fan speed control
knob to the maximum speed
position.
After prolonged parking in direct
sunlight, open the windows or doors
to ventilate the interior of the cab
and release the heat.
During cooling operation, mist may
come out of the air outlets. This
results from quick cooling of humid
air, and does not indicate any
problem.Air Vents
1. Driver Side Outlets. Airflowdirection is adjustable.
2. Windshield Outlets. Air is delivered towards the
windshield.
3. Passenger Side Outlets. Airflow direction is
adjustable. 4. Door Windows Outlet. Air is
delivered towards the door
windows
5. Foot Outlets. Air is delivered towards the feet.
Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
130 Climate Controls
Air Flow Direction Control Lever
Use the tab to adjust the airflow
direction from the outlet. To close
the outlet, move the tab fully down.
Maintenance
Passenger Compartment
Air Filter
Removing the Inside Air Filter
1. Remove the 2 clips securingthe cover. Remove the clips in
the order of the inner clip (1)
followed by the outer clip (2).
2. Remove the cover by pushing it upwards.
3. Remove and clean the filter.Use a vacuum cleaner or the
like to clean dust and dirt from
its surface.
Avoid interference with electric
harnesses when removing the filter.
In order to avoid filter damage, hard
brushes should not be used for filter
cleaning.
Installing the Inside Air Filter
Install the filter in the reverse order
to removal.
Ensure that the filter is returned
securely to its original position.
Failure to observe this precaution
can lead to rattling during travel.
Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
Climate Controls 131
The vehicle must not be used with
the filter removed or incorrectly
installed. Failure to observe this
precaution can lead to air
conditioning system damage as a
result of dust, dirt and the like
entering the system.
Removing the Outside Air Filter
1. Remove the filter from underthe instrument panel on the
passenger side. While pressing
in the filter lock, on both sides,
pull out the filter.
2. Use a vacuum cleaner or the like to clean dust and dirt from
its surface. In order to avoid filter damage, hard
brushes should not be used for filter
cleaning.
Installing the Outside Air Filter
Install the filter in the reverse order
to removal.
Ensure that the filter is returned
securely to its original position.
Failure to observe this precaution
can lead to rattling during travel.
The vehicle must not be used with
the filter removed or incorrectly
installed. Failure to observe this
precaution can lead to air
conditioning system damage as a
result of dust, dirt, water, snow, and
the like entering the system.
Service
The air conditioning system will not
be able to cool the cab interior
effectively if the refrigerant level is
low. Accordingly, the refrigerant
level must be topped up whenever
necessary.
Please contact your dealer
whenever refrigerant must be
added. Operation Tips
Operating the air conditioning while
the refrigerant level is too low leads
not only to poor cooling
performance but also to air
conditioning system damage.
This vehicle uses the new
refrigerant HFC134a (R134a) in the
air conditioning system. No other
type of refrigerant can be used. In
order to protect the environment,
care must be taken to ensure that
refrigerant gas is never released
into open air. When refrigerant must
be replaced, therefore, please
contact your dealer or other service
facility equipped with a gas recovery
installation system.
Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
Driving and Operating 179
Warning (Continued)
or corroded exhaust system or
cab. Do not run the engine in
confined areas (such as garages,
next to a building or near another
stopped vehicles with engine
running) any more than needed to
move the vehicle.
When the vehicle has to be
stopped in an unconfined area
with the engine running for any
more than a few minutes, take the
following steps:. Adjust the heating or cooling
system to force outside air
into the cab.
. With temperature and outlet
selector knob in any
position:
. Set the air selector lever to
the fresh air position.
. Set the fan speed control
knob to the maximum speed
position.
(Continued)
Warning (Continued)
.Keep the exhaust tailpipe
area clear of snow and
other material to help
reduce the buildup of
exhaust gases under the
vehicle.
This is particularly important when
parked in blizzard conditions. You
and others could be seriously
injured.
See Climate Control Systems 0126
and Maintenance Schedule 0345.
Running the Vehicle
While Parked
Caution
To reduce the chance of personal
injury and/or vehicle damage due
to engine overheating, never
leave the engine idling without an
alert driver present. If the engine
(Continued)
Caution (Continued)
should overheat, as indicated by
the engine coolant temperature
gauge, immediate action is
required to correct the condition.
Continued operation of the
engine, even for a short time, may
result in a fire. Do not engage the
exhaust brake while the engine is
idling as this may cause engine
overheating.
Avoid Unnecessary Idling of the
Diesel Engine
If the engine idles too long, the
engine coolant temperature will fall
below the operating range. Low
engine operating temperature
causes several conditions that are
harmful to engine operation and life.
Incomplete combustion of fuel in an
engine that is not fully warmed-up
causes crankcase dilution and
forms lacquer and gummy deposits
on valves, pistons, and rings. It also
causes rapid accumulation of
sludge within the engine.
Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
408 Index
Brakes (cont'd)Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 280
Parking . . . . . . . . . . . . . . . . . . . . . . . 221
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 137
Break-In, New Vehicle . . . . . . . . . . 162
Bulb Replacement
Headlamp Aiming . . . . . . . . . . . . . 288
Headlamps . . . . . . . . . . . . . . . . . . . 288
Headlamps and Front TurnSignal . . . . . . . . . . . . . . . . . . . . . . . 291
Interior Lamps . . . . . . . . . . . . . . . . 298
License Plate Lamps . . . . . . . . . 297
Roofmarker Lamps . . . . . . . . . . . 295
Sidemarker Lamps . . . . . . . . . . . 295
Taillamps, Turn Signal, Stoplamps, and Back-up
Lamps . . . . . . . . . . . . . . . . . . . . . . 297
Buzzers, Warning . . . . . . . . . . . . . . . 101
C
Cab Tilting . . . . . . . . . . . . . . . . . . . . . . 247
California
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 245
California Proposition 65 Warning . . . . . . . . . . . . . . . 245, 326
Capacities and Specifications . . . . . . . . . . . . . . . . . 389 Carbon Monoxide
Engine Exhaust . . . . . . . . . . . . . . . 178
Winter Driving . . . . . . . . . . . . . . . . 145
Cargo Lamp . . . . . . . . . . . . . . . . . . . . 107
Caution, Danger, and Warning . . . . 3
CD Player . . . . . . . . . . . . . . . . . . . . . . 114
Check Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . . . 84
Child Restraints Infants and Young Children . . . . . 57
Systems . . . . . . . . . . . . . . . . . . . . . . . . 57
Cigarette Lighter . . . . . . . . . . . . . . . . . 74
Cleaning Exterior Care . . . . . . . . . . . . . . . . . 334
Interior Care . . . . . . . . . . . . . . . . . . 340
Climate Control Systems . . . . . . . 126 Air Conditioning . . . . . . . . . . . . . . 126
Heating . . . . . . . . . . . . . . . . . . . . . . . 126
Cluster, Instrument . . . . . . . . . . . . . . 77
Cold Weather Operation . . . . . . . . 235
Collision Damage Repair . . . . . . . 401
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . . . 60
Control of a Vehicle . . . . . . . . . . . . . 133
Coolant
Engine . . . . . . . . . . . . . . . . . . . . . . . . 263
Engine Temperature Gauge . . . . 82 Cooling . . . . . . . . . . . . . . . . . . . . . . . . . 126
Cornering Lamps . . . . . . . . . . . . . . . 106
Cover
Engine . . . . . . . . . . . . . . . . . . . . . . . . 250
Covers Winter . . . . . . . . . . . . . . . . . . . . . . . . 172
Cruise Control . . . . . . . . . . . . . 224, 227
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Cupholders . . . . . . . . . . . . . . . . . . . . . . 62
Customer Assistance . . . . . . . . . . . 399 Offices . . . . . . . . . . . . . . . . . . . . . . . . 399
Text Telephone (TTY)
Users . . . . . . . . . . . . . . . . . . . . . . . 399
Customer Information Service PublicationsOrdering Information . . . . . . . . 403
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . . 398
D
Damage Repair, Collision . . . . . . . 401
Danger, Warning, and Caution . . . . 3
Daytime Running Lamps (DRL)Indicator Light . . . . . . . . . . . . . . . . . . 92
Devices Auxiliary . . . . . . . . . . . . . . . . . . . . . . 124
Diesel Engine Engine Alarm andAutomatic Shutdown . . . . . . . . 174
Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
412 Index
Proposition 65 Warning,California . . . . . . . . . . . . . . . . . 245, 326
R
Radio Frequency Statement . . . . 404
Radio Reception . . . . . . . . . . . . . . . . 112
Radios
AM-FM Radio . . . . . . . . . . . . . . . . . 108
Rear Axle . . . . . . . . . . . . . . . . . . . . . . . 283
Rear Seats . . . . . . . . . . . . . . . . . . . . . . 48
Rear Storage . . . . . . . . . . . . . . . . . . . . 63
Recommended Fluids and Lubricants . . . . . . . . . . . . . . . . . . . . . 378
Reduced Engine Power Light . . . . 91
Reimbursement Program, GM Mobility . . . . . . . . . . . . . . . . . . . 400
Remote Keyless Entry (RKE)
System . . . . . . . . . . . . . . . . . . . . . . . . . 32
Replacement Parts Maintenance . . . . . . . . . . . . . . . . . . 380
Reporting Safety Defects
General Motors . . . . . . . . . . . . . . . 405
U.S. Government . . . . . . . . . . . . . 405
Roads Driving, Wet . . . . . . . . . . . . . . . . . . 143
Roadside Assistance
Program . . . . . . . . . . . . . . . . . . . . . . . 400
Roofmarker Lamps . . . . . . . . . . . . . 295
Rotation, Tires . . . . . . . . . . . . . . . . . . 323 Routing, Engine Drive Belt . . . . . . 396
Running out of Fuel . . . . . . . . . . . . . 238
Running the Vehicle While
Parked . . . . . . . . . . . . . . . . . . . . . . . . 179
S
Safety Defects ReportingGeneral Motors . . . . . . . . . . . . . . . 405
U.S. Government . . . . . . . . . . . . . 405
Safety System Check . . . . . . . . . . . . 55
Scheduling Appointments . . . . . . . 401
Seat Belts . . . . . . . . . . . . . . . . . . . . . . . 49 Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Extender . . . . . . . . . . . . . . . . . . . . . . . . 55
Lap Belt . . . . . . . . . . . . . . . . . . . . . . . . 53
Reminders . . . . . . . . . . . . . . . . . . . . . . 83
Three-Point . . . . . . . . . . . . . . . . . . . . . 51
Use During Pregnancy . . . . . . . . . . 53
Seats Position, Front . . . . . . . . . . . . . . . . . . 44
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Security Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 39
Selector Lever . . . . . . . . . . . . . . . . . . 214
Service . . . . . . . . . . . . . . . . . . . . . . . . . 131 Accessories and
Modifications . . . . . . . . . . . . . . . . 245
Climate Control System . . . . . . . 126
Doing Your Own Work . . . . . . . . 245 Service (cont'd)
Publications Ordering
Information . . . . . . . . . . . . . . . . . . 403
Scheduling Appointments . . . . . 401
Transmission Warning Light . . . . 88
Vehicle Soon Light . . . . . . . . . . . . . . 84
Shift Lock Control Function Check, Automatic
Transmission . . . . . . . . . . . . . . . . . . 285
Shopping Bag Hooks . . . . . . . . . . . . 64
Sidemarker Lamps . . . . . . . . . . . . . 295
Signals, Turn and Lane-Change . . . . . . . . . . . . . . . . . 105
Specifications and
Capacities . . . . . . . . . . . . . . . . . . . . . 389
Speed Limiter . . . . . . . . . . . . . . . . . . . 231
Speedometer . . . . . . . . . . . . . . . . . . . . 80
Starting and Stopping the Vehicle . . . . . . . . . . . . . . . 165, 168
Steering . . . . . . . . . . . . . . . . . . . . . . . . 143 Fluid, Power . . . . . . . . . . . . . . . . . . 273
Wheel Adjustment . . . . . . . . . . . . . . 72
Stoplamps and Back-up Lamps
Bulb Replacement . . . . . . . . . . . . 297
Storage Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Storage Areas Glove Box . . . . . . . . . . . . . . . . . . . . . . 61