2012 CHEVROLET EXPRESS CARGO VAN air conditioning

Black plate (3,1)Chevrolet Express Owner Manual - 2012
Climate Controls 8-3
Vehicles with Air Conditioning
A. Fan Control
B. Temperature Control
C. Air Delivery Mode Control
D. Rear Window Defogger 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.
#(Air Conditioning):
Cools and
dehumidifies the air inside of the
vehicle.
V(Maximum Air Conditioning):
Cools the air inside the vehicle
faster, by recirculating the inside air.

Black plate (6,1)Chevrolet Express Owner Manual - 2012
8-6 Climate Controls
Rear Climate Control System
For vehicles 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 located in the overhead console between
the driver and front passenger.
Front Climate Control Panel
A. Fan Control
B. Air Delivery Mode Control
C. Temperature Control Use this control panel to maintain a
separate temperature setting. Adjust
the direction of the airflow or adjust
the fan speed for the rear seat
passenger(s).

Black plate (8,1)Chevrolet Express Owner Manual - 2012
8-8 Climate Controls
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(Vent):
Air is directed to the
upper outlets, with some directed to
the floor outlets.
2(Floor): Air is directed to the
floor outlets.
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 Systems on
page 8‑1. For information on
ventilation, see Air Vents on
page 8‑8.
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.
.Keep the path under the front
seats clear of objects to help
circulate the air inside of the
vehicle more effectively.

Black plate (43,1)Chevrolet Express Owner Manual - 2012
Vehicle Care 10-43
Mini Fuse Usage3 Right Stop/Turn
Trailer
4 Spare
5 Spare
6 Fuel System
Control Module
Ignition
7 Body Control
Module 5
8 Body Control
Module 7
9 Body Control
Module 4
10 Instrument Panel
Cluster Mini Fuse Usage
11 Trailer Wiring
12 Spare
13 Spare
14 Windshield Washer
16 Horn
17 Transmission
18 Air Conditioning
Compressor
19 Engine Control
Module Battery
20 Spare
21 Left Stop/Turn
Trailer Mini Fuse Usage
22 Spare
23 Spare
24 Fuel Pump
25 Auxiliary Power
Outlet
26 Body Control
Module 3
27 Special Equipment
Option
28 Airbag
29 Steering Wheel
Sensor
30 Engine Control
Module Ignition/
Glow Plug Module

Black plate (45,1)Chevrolet Express Owner Manual - 2012
Vehicle Care 10-45
Mini Fuse Usage71 Fuel Heater/Flex
Fuel Sensor
72 Body Control
Module 6
73 Lighter/Data Link
Connection
75 V6 Fuel Injectors
76 Spare
77 Oxygen Sensor
2 (Pre)
78 Engine Control
Module Powertrain
79 Even Ignition/
Injectors J‐Case Fuse Usage
1 ABS Motor
2 ABS Module
41 Spare
42 Trailer Wiring
43 Fan High
44 Starter Solenoid
45 Engine Control
Module/Powertrain
46 Spare
47 Fan Lo
74 Front Blower Relay Usage
15 Run/Crank
37 Spare
38 Fuel Pump
39 Crank
40 Air Conditioning
Compressor
48 Fan High
49 Powertrain
50 Spare
57 Fan Low
60 Fan Control

Black plate (47,1)Chevrolet Express Owner Manual - 2012
Vehicle Care 10-47
Mini‐Fuse UsageF1 Empty
F2 Steering Wheel
Sensor
F3 Auxiliary Parking
Lamps (Cut‐Away)
F4 Front Park Lamps
F5 Trailer Park Lamps
F6 Upfitter Park
Lamps
F7 Right Rear
Park Lamp
F8 Left Rear
Park Lamp
F9 Outside Rearview
Mirror Switch Mini‐Fuse Usage
F10 Airbag/Automatic
Occupant Sensing
F11 OnStar
®
(If Equipped)
F12 Empty
F13 Heating, Ventilation
and Air
Conditioning 2
F14 Heating, Ventilation
and Air
Conditioning 1
F15 Empty
F17 Outside Rearview
Mirror Heater
F18 Rear Window
Defogger Mini‐Fuse Usage
F19 Compass
F20 Radio/Chime/XM™
Satellite Radio
(If Equipped)
F21 Remote Function
Actuator/Tire
Pressure Monitor
F22 Ignition Switch/
Discrete
Logic Ignition
Sensor (PK3)
F23 Instrument Panel
Cluster
F25 Heating,
Ventilation and
Air Conditioning
Control

Black plate (54,1)Chevrolet Express Owner Manual - 2012
10-54 Vehicle Care
Tire Terminology and
Definitions
Air Pressure:The amount of
air inside the tire pressing
outward on each square inch
of the tire. Air pressure is
expressed in kPa (kilopascal)
or psi (pounds per square inch).
Accessory Weight
:The
combined weight of optional
accessories. Some examples of
optional accessories are
automatic transmission, power
steering, power brakes, power
windows, power seats, and air
conditioning.
Aspect Ratio
:The relationship
of a tire's height to its width.
Belt
:A rubber coated layer of
cords that is located between
the plies and the tread. Cords
may be made from steel or other
reinforcing materials. Bead
:The tire bead contains
steel wires wrapped by steel
cords that hold the tire onto
the rim.
Bias Ply Tire
:A pneumatic tire
in which the plies are laid at
alternate angles less than
90 degrees to the centerline of
the tread.
Cold Tire Pressure
:
The amount of air pressure
in a tire, measured in
kPa (kilopascal) or psi (pounds
per square inch) before a tire
has built up heat from driving.
See Tire Pressure on
page 10‑56.
Curb Weight
:The weight of a
motor vehicle with standard and
optional equipment including the
maximum capacity of fuel, oil,
and coolant, but without
passengers and cargo. DOT Markings
:A code molded
into the sidewall of a tire
signifying that the tire is in
compliance with the U.S.
Department of Transportation
(DOT) Motor Vehicle Safety
Standards. The DOT code
includes the Tire Identification
Number (TIN), an alphanumeric
designator which can also
identify the tire manufacturer,
production plant, brand, and
date of production.
GVWR
:Gross Vehicle Weight
Rating. See Vehicle Load Limits
on page 9‑11.
GAWR FRT
:Gross Axle Weight
Rating for the front axle.
See Vehicle Load Limits on
page 9‑11.
GAWR RR
:Gross Axle Weight
Rating for the rear axle.
See Vehicle Load Limits on
page 9‑11.

Black plate (89,1)Chevrolet Express Owner Manual - 2012
Vehicle Care 10-89
Notice:Your vehicle uses the
unpainted radio antenna bracket
as a remote negative (−) terminal.
Move the antenna coax cable out
of the way before clamping the
negative jumper cable to the fixed
antenna bracket. Avoid touching
the negative cable clamp to the
air conditioning line. Failure to do
either of these could damage
your vehicle. The repairs would
not be covered by the warranty.
9. Now start the vehicle with the
good battery and run the engine
for a while.
10. Try to start the vehicle that had the dead battery. If it will not
start after a few tries, it
probably needs service.
Notice: If the jumper cables are
connected or removed in the
wrong order, electrical shorting
may occur and damage the
vehicle. The repairs would not be
covered by the vehicle warranty. Always connect and remove the
jumper cables in the correct
order, making sure that the
cables do not touch each other
or other metal.
Jumper Cable Removal
A. Unpainted Metal Part or Remote Negative (−) Terminal
B. Good Battery or Remote Positive (+) and Remote
Negative (−) Terminals
C. Dead Battery or Remote Positive (+) Terminal To disconnect the jumper cables
from both vehicles, do the following:
1. Disconnect the black
negative (−) cable from the
vehicle that had the dead
battery.
2. Disconnect the black negative (−) cable from the
vehicle with the good battery.
3. Disconnect the red positive (+) cable from the vehicle with the
good battery.
4. Disconnect the red positive (+) cable from the other vehicle.
5. Return the remote positive (+) terminal cover to its original
position.