air conditioning CHEVROLET EXPRESS 2019 Owner's Manual

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12146162) - 2019 - crc - 11/26/18
Introduction 3
{Danger
Danger indicates a hazard with a
high level of risk which will result
in serious injury or death.
{Warning
Warning indicates a hazard that
could result in injury or death.
Caution
Caution indicates a hazard that
could result in property or vehicle
damage.
A circle with a slash through it is a
safety symbol which means“Do
Not,” “Do not do this,” or“Do not let
this happen.”
Symbols
The vehicle has components and
labels that use symbols instead of
text. Symbols are shown along with
the text describing the operation or
information relating to a specific
component, control, message,
gauge, or indicator.
M: Shown when the owner ’s
manual has additional instructions
or information.
*: Shown when the service
manual has additional instructions
or information.
0: Shown when there is more
information on another page —
“see page.” Vehicle Symbol Chart
Here are some additional symbols
that may be found on the vehicle
and what they mean. See the
features in this manual for
information.
u:
Air Conditioning System
G:Air Conditioning Refrigerant Oil
9:Airbag Readiness Light
!:Antilock Brake System (ABS)
$:Brake System Warning Light
9:Dispose of Used Components
Properly
P: Do Not Apply High Pressure
Water
B: Engine Coolant Temperature
_: Flame/Fire Prohibited
H:Flammable
[:Forward Collision Alert
R: Fuse Block Cover Lock
Location
+: Fuses
j:ISOFIX/LATCH System Child
Restraints

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12146162) - 2019 - crc - 11/26/18
In Brief 15
Climate Controls
The vehicle's heating, cooling, and ventilation can be controlled with these
systems.
Vehicles without Air Conditioning
1. Fan Control
2. Temperature Control
3. Air Delivery Mode Control

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12146162) - 2019 - crc - 11/26/18
16 In Brief
Vehicles with Air Conditioning
1. Fan Control
2. Temperature Control
3. Air Delivery Mode Control
4. Rear Window Defogger
See Climate Control Systems 0159.
See Rear Heating System 0161,
if equipped or Rear Climate Control
System 0161, if equipped.
Transmission
Range Selection Mode
If equipped, Range Selection Mode
helps control the vehicle's
transmission and vehicle speed while driving downhill or towing a
trailer by letting you select a desired
range of gears.
To use this feature:
1. Move the shift lever to M (Manual Mode).
2. Press the +/− buttons on the
shift lever, to select the desired
range of gears for current
driving conditions.
When M (Manual Mode) is selected,
the transmission will downshift and
a number displays in the Driver
Information Center (DIC) next to the
M indicating the current gear.
Grade Braking is not available when
Range Selection Mode is active.
See Tow/Haul Mode 0189.
While using Range Selection Mode,
cruise control and the Tow/Haul
Mode can be used. See Manual
Mode 0188.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12146162) - 2019 - crc - 11/26/18
Keys, Doors, and Windows 29
Caution
When replacing the battery, do
not touch any of the circuitry on
the transmitter. Static from your
body could damage the
transmitter.
To replace the battery:1. Separate the transmitter with a flat, thin object, such as a flat
head screwdriver.
.Carefully insert the tool into
the notch located along the
parting line of the transmitter. Do not insert
the tool too far. Stop as
soon as resistance is felt.
. Twist the tool until the
transmitter is separated.
2. Remove the old battery. Do not use a metal object.
3. Insert the new battery, positive side facing down. Replace with
a CR2032 or equivalent
battery.
4. Snap the transmitter back together.
Remote Vehicle Start
This vehicle may have a remote
start feature. This feature allows you
to start the engine from outside the
vehicle. It may also start the
vehicle's heating or air conditioning
systems. See Climate Control
Systems 0159.
Laws in some local communities
may restrict the use of remote
starters. For example, some laws
may require a person using remote
start to have the vehicle in view when doing so. Check local
regulations for any requirements on
remote starting of vehicles.
Do not use the remote start feature
if the vehicle is low on fuel. The
vehicle may run out of fuel.
The RKE transmitter range may be
less while the vehicle is running.
Other conditions can affect the
performance of the transmitter. See
Remote Keyless Entry (RKE)
System
027.
/:This button will be on the RKE
transmitter if the vehicle has remote
start.
To start the engine using the remote
start feature:
1. Press and release
Qon the
transmitter.
2. Immediately press and hold
/
until the turn signal lamps
flash. If you cannot see the
lamps, press and hold
/for at
least four seconds.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12146162) - 2019 - crc - 11/26/18
Climate Controls 159
Climate Controls
Climate Control Systems
Climate Control Systems . . . . . 159
Rear Heating System . . . . . . . . . 161
Rear Climate ControlSystem . . . . . . . . . . . . . . . . . . . . . . 161
Air Vents
Air Vents . . . . . . . . . . . . . . . . . . . . . 164
Maintenance
Service . . . . . . . . . . . . . . . . . . . . . . . 164
Climate Control Systems
The heating, cooling, and ventilation for the vehicle can be controlled with
this system.
Vehicles without Air Conditioning
1. Fan Control
2. Temperature Control
3. Air Delivery Mode Control
9: Turn the knob clockwise or
counterclockwise to increase or
decrease the fan speed.
9: Turns the system off. Temperature Control :
Turn the
knob clockwise or counterclockwise
to increase or decrease the
temperature inside the vehicle.
Air Delivery Mode Control : Turn
the knob clockwise or
counterclockwise to change the
current airflow mode.
H: Air is directed to the instrument
panel outlets.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12146162) - 2019 - crc - 11/26/18
160 Climate Controls
):Air is divided between the
instrument panel and floor outlets,
with some air directed toward the
windshield.
6: Air is directed to the floor
outlets with some air directed to the
windshield and side windows.
-: This mode clears the windows
of fog or moisture. Outside air is
directed to the floor and defroster
outlets. Adjust the temperature knob
for warmer or cooler air. The air
conditioning compressor might turn
on in this setting to dehumidify
the air.
1: This mode clears the
windshield of fog or frost more
quickly. Air is directed to the
windshield, with some to the floor
outlets and front side windows. The
air conditioning compressor might
turn on in this setting to dehumidify
the air.
Do not drive the vehicle until all the
windows are clear.
Vehicles with Air Conditioning
1. Fan Control
2. Temperature Control
3. Air Delivery Mode Control
4. Rear Window Defogger (If Equipped)
On hot days, open the windows to
let hot inside air escape; then close
them. This helps to reduce the time
needed for the vehicle to cool down
and the system operates more
efficiently.
#: Cools and dehumidifies the air
inside of the vehicle.
V: Cools the air inside the vehicle
faster, by recirculating the inside air.
Rear Window Defogger
If equipped with a rear window
defogger, a warming grid is used to
remove fog or frost from the rear
window.
1: Press to turn the rear window
defogger on or off. An indicator light
on the button comes on to show that
the rear window defogger is on.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12146162) - 2019 - crc - 11/26/18
Climate Controls 161
The defogger only works when the
ignition is on. The defogger turns off
if the ignition is turned off or to ACC/
ACCESSORY.
Heated Mirrors: If equipped with
heated outside mirrors, the mirrors
heat to help clear fog or frost from
the surface of the mirror when
1is
pressed. See Heated Mirrors 039.
Do not drive the vehicle until all the
windows are clear.
Caution
Do not use a razor blade or sharp
object to clear the inside rear
window. Do not adhere anything
to the defogger grid lines in the
rear glass. These actions may
damage the rear defogger.
Repairs would not be covered by
the vehicle warranty.
Rear Heating System
If equipped, the rear heating system
lets you adjust the amount of air
flowing into the rear of the vehicle, from the front seating area. This
feature works with the main climate
control system in the vehicle.
AUX :
The thumbwheel for this
system is on the instrument panel
below the audio system.
9: Turn the thumbwheel up or
down to increase or decrease the
amount of heated air sent to the
rear seating area.
Q: This position supplies the most
amount of heat to the rear
seating area.
c: This position supplies half the
amount of heat to the rear
seating area.
R: This position supplies the least
amount of heat to the rear
seating area.
9: This turns the rear heating
system off.
Rear Climate Control
System
If equipped with a rear heating and
air conditioning system, it controls
the temperature, fan speed, and air
delivery for the rear seat
passengers only. The front climate
control panel is in the overhead
console between the driver and
front passenger.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12146162) - 2019 - crc - 11/26/18
Climate Controls 163
Rear Climate Control Panel
1. Fan Control
2. Air Delivery Mode Control
3. Temperature Control
For vehicles with a rear climate
control panel, it is located overhead
behind the driver and front
passenger, centered in front of the
second row. To adjust the rear
climate control panel settings by a
rear seat passenger, the front
climate control panel fan knob must
be in the AUX position. The fan
speed, air delivery mode, and
temperature can then be adjusted. AUX :
Turn the fan knob on the
front climate control panel to AUX to
let rear seat passengers use the
control panel in the rear seating
area. This disables the front control
panel. To return control to the front
panel, move the fan knob out
of AUX.
9: Turns the system off.
9:Turn clockwise or
counterclockwise to increase or
decrease the fan speed in the rear
seating area. Temperature Control :
Turn
clockwise or counterclockwise to
increase or decrease the
temperature in the rear
seating area.
The air conditioning system on the
main climate control panel must be
turned on to direct cooled air to the
rear of the vehicle. If it is not on,
then the temperature in the rear of
the vehicle remains at cabin
temperature.
Air Delivery Mode Control : Turn
clockwise or counterclockwise to
change the direction of the airflow in
the rear seating area.
To change the current mode, select
one of the following:
H: Air is directed to the upper
outlets, with some directed to the
floor outlets.
2: Air is directed to the floor
outlets.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12146162) - 2019 - crc - 11/26/18
164 Climate Controls
Be sure to keep the area under the
front seats clear of any objects so
that the air inside of the vehicle can
circulate effectively.
For information on how to use the
main climate control system, see
Climate Control Systems0159. For
information on ventilation, see Air
Vents 0164.Air Vents
Use the outlets located near the
center and on the sides of the
instrument panel to change the
direction of airflow.
Operation Tips
.
Clear away any ice, snow or
leaves from the air inlets at the
base of the windshield that may
block the flow of air into the
vehicle.
. Use of non-GM approved hood
deflectors may adversely affect
the performance of the system.
. Clear snow off the hood to
improve visibility and help
decrease moisture drawn into
the vehicle.
. Keep the path under the front
seats clear of objects to help
circulate the air inside of the
vehicle more effectively.
Maintenance
Service
All vehicles have a label underhood
that identifies the refrigerant used in
the vehicle. The refrigerant system
should only be serviced by trained
and certified technicians. The air
conditioning evaporator should
never be repaired or replaced by
one from a salvage vehicle.
It should only be replaced by a new
evaporator to ensure proper and
safe operation.
During service, all refrigerants
should be reclaimed with proper
equipment. Venting refrigerants
directly to the atmosphere is harmful
to the environment and may also
create unsafe conditions based on
inhalation, combustion, frostbite,
or other health-based concerns.
The air conditioning system requires
periodic maintenance. See
Maintenance Schedule 0319.

Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
12146162) - 2019 - crc - 11/26/18
Vehicle Care 249
If No Steam is Coming from
the Engine Compartment
If an engine overheat warning is
displayed but no steam can be seen
or heard, the problem may not be
too serious. Sometimes the engine
can get a little too hot when the
vehicle:
.Climbs a long hill on a hot day.
. Stops after high-speed driving.
. Idles for long periods in traffic.
. Tows a trailer. See “Driving on
Grades” underTrailer Towing
0 215.
If the overheat warning is displayed
with no sign of steam: 1. Turn the air conditioning off.
2. Turn the heater on to the highest temperature and to the
highest fan speed. Open the
windows as necessary.
3. When it is safe to do so, pull off the road, shift to P (Park) or
N (Neutral) and let the
engine idle. If the engine coolant temperature
gauge is no longer in the overheat
zone or an overheat warning no
longer displays, the vehicle can be
driven. Continue to drive the vehicle
slowly for about 10 minutes. Keep a
safe vehicle distance from the
vehicle in front. If the warning does
not come back on, continue to drive
normally and have the cooling
system checked for proper fill and
function.
If the warning continues, pull over,
stop, and park the vehicle
right away.
If there is still no sign of steam,
push down the accelerator until the
engine speed is about twice as fast
as normal idle speed for at least
three minutes while parked. If the
warning is still on, turn off the
engine until it cools down.
If the decision is made not to lift the
hood, get service help right away.
Engine Fan
The vehicle has a clutched engine
cooling fan. When the clutch is
engaged, the fan spins faster to
provide more air to cool the engine.
In most everyday driving conditions,
the fan is spinning slower and the
clutch is not fully engaged. This
improves fuel economy and reduces
fan noise. Under heavy vehicle
loading, trailer towing, and/or high
outside temperatures, the fan speed
increases as the clutch more fully
engages, so an increase in fan
noise may be heard. This is normal
and should not be mistaken as the
transmission slipping or making
extra shifts. It is merely the cooling
system functioning properly. The fan
will slow down when additional
cooling is not required and the
clutch partially disengages.
This fan noise may be heard when
starting the engine. It will go away
as the fan clutch partially
disengages.