AUX CHEVROLET EXPRESS CARGO VAN 2012 1.G User Guide

Black plate (5,1)Chevrolet Express Owner Manual - 2012
Climate Controls 8-5
Rear Heating System
For vehicles with a rear heating
system, it 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 located in the instrument
panel switchbank below the audio
system.
9(Fan): Turn the thumbwheel up
or down to increase or decrease the
amount of heated air sent to the
rear-seating area.
Q(High): This position supplies
the most amount of heat to the
rear-seating area.
c(Medium): This position
supplies half the amount of heat
to the rear‐seating area.
R(Low): This position supplies
the least amount of heat to the
rear-seating area.
9(Off): Turns the rear heating
system off.

Black plate (7,1)Chevrolet Express Owner Manual - 2012
Climate Controls 8-7
When the fan knob is in the AUX position, the rear climate control panel can
be used to adjust the climate settings in the rear seating area.
Rear Climate Control Panel
A. Fan Control
B. Air Delivery Mode Control
C. 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 (Auxiliary):
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(Fan Control): Turn clockwise
or counterclockwise to increase or
decrease the fan speed in the
rear-seating area.

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 (44,1)Chevrolet Express Owner Manual - 2012
10-44 Vehicle Care
Mini Fuse Usage31 Transmission
Control Module
Ignition
32 Transmission
Control Module
Battery
33 Spare
34 Spare
35 Fuel Operated
Heater Module
36 Fuel System
Control Module
Battery
51 Left High‐Beam
Headlamp
52 Right High‐Beam
Headlamp Mini Fuse Usage
53 Left Low‐Beam
Headlamp
54 Right Low‐Beam
Headlamp
55 Wiper
56 Canister Vent
Solenoid
58 Body Control
Module 2
59 Body Control
Module 1
61 Spare
62 Oxygen Sensor 2
(Post), EV Fan
(Diesel)
63 Spare Mini Fuse Usage
64 Mass Air Flow/
Canister Vent
65 Odd Ignition/
Injectors
66 Daytime Running
Lamps 2
(LOLVL‐V22)
(If Equipped)
67 Daytime Running
Lamps 1
(UPLVL+V22)
(If Equipped)
68 Auxiliary Stop
Lamps
69 Trailer Stop Lamps
70 Spare

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 (48,1)Chevrolet Express Owner Manual - 2012
10-48 Vehicle Care
Mini‐Fuse UsageF26 Auxiliary/Trailer
Backup
F27 Taillamps Backup
F30 Upfitter Courtesy
Lamps
F31 Front Door Lock
F32 Rear Door Lock
F33 Cargo Door Unlock
F34 Passenger Door
Unlock
F35 Rear Passenger
Door Unlock
F36 Driver Door Unlock
F37 Empty
F38 Empty J‐Case Fuse Usage
F16 Upfitter Auxiliary 1
F24 Empty
F28 Upfitter Auxiliary 2
Reading Lamps
F29 Rear Blower
Relays Usage K1 Run (High Current
Micro)
K2 Empty (High
Current Micro)
K3 Park Lamps (High
Current Micro)
K4 Upfitter Auxiliary 2
(High Current Mini) Relays Usage
K5 Rear Defogger
(High Current
Micro)
K6 Retained
Accessory Power
(RAP) (High
Current Micro)
Circuit
Breaker Usage
CB1 Power Seats
CB2 Power Windows

Black plate (1,1)Chevrolet Express Owner Manual - 2012
INDEX i-1
A
Accessories andModifications . . . . . . . . . . . . . . . . . 10-3
Accessory Power . . . . . . . . . . . . . . 9-21
Add-On Electrical Equipment . . . . . . . . . . . . . . . . . . . 9-58
Additional Information,
OnStar
®. . . . . . . . . . . . . . . . . . . . . . 14-5
Air Cleaner/Filter, Engine . . . . . 10-16
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 8-8
Airbag Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . 3-35
Light On-Off . . . . . . . . . . . . . . . . . . 5-18
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . 3-37
How Does an Airbag
Restrain? . . . . . . . . . . . . . . . . . . . 3-24
Passenger Sensing System . . . . . . . . . . . . . . . . . . . . . . 3-30
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . 3-23 Airbag System (cont'd)
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . 3-24
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . 3-22
Where Are the Airbags? . . . . . . 3-20
Airbags On-Off Light . . . . . . . . . . . . . . . . . . 5-18
On-Off Switch . . . . . . . . . . . . . . . . 3-26
Passenger Status Indicator . . . 5-20
Readiness Light . . . . . . . . . . . . . . 5-18
Servicing Airbag-EquippedVehicles . . . . . . . . . . . . . . . . . . . . . 3-35
System Check . . . . . . . . . . . . . . . . 3-18
All-Wheel Drive . . . . . . . . . 10-29, 9-33
AM-FM Radio . . . . . . . . . . . . . . . . . . . 7-8
Anti-theft Alarm System Messages . . . . . 5-40
Antilock Brake System (ABS) . . . . . . . . . . . . . . . . 9-33
Warning Light . . . . . . . . . . . . . . . . . 5-24
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . 10-93
Interior . . . . . . . . . . . . . . . . . . . . . . 10-97
Ashtrays . . . . . . . . . . . . . . . . . . . . . . . 5-11 Assistance Program,
Roadside . . . . . . . . . . . . . . 13-8, 13-10
Audio Players . . . . . . . . . . . . . . . . . 7-13 CD . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13
Audio System Fixed Mast Antenna . . . . . . . . . . 7-12
Radio Reception . . . . . . . . . . . . . . 7-12
Theft-Deterrent Feature . . . . . . . . 7-2
Automatic Door Locks . . . . . . . . . . . . . . . . . . . . 2-8
Headlamp System . . . . . . . . . . . . . 6-4
Automatic Transmission . . . . . . . . . . . 9-25, 9-28
Fluid . . . . . . . . . . . . . . . . . 10-11, 10-13
Manual Mode . . . . . . . . . . . . . . . . . 9-31
Shift Lock ControlFunction Check . . . . . . . . . . . 10-33
Auxiliary Devices . . . . . . . . . . . . . . 7-19
Axle, Front . . . . . . . . . . . . . . . . . . . . 10-30
Axle, Rear . . . . . . . . . . . . . . . . . . . . 10-31

Black plate (3,1)Chevrolet Express Owner Manual - 2012
INDEX i-3
Collision Damage Repair . . . . . 13-15
Compass . . . . . . . . . . . . . . . . . . . . . . . 5-6Messages . . . . . . . . . . . . . . . . . . . . 5-34
Connections, OnStar
®. . . . . . . . . 14-4
Control of a Vehicle . . . . . . . . . . . . . 9-3
Convex Mirrors . . . . . . . . . . . . . . . . 2-14
Coolant Engine . . . . . . . . . . . . . . . . . . . . . . 10-18
Engine TemperatureGauge . . . . . . . . . . . . . . . . . . . . . . 5-16
Cooling System . . . . . . . . . . . . . . . 10-18
Engine Messages . . . . . . . . . . . . 5-36
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . 13-14
Cruise Control . . . . . . . . . . . . . . . . . 9-37 Light . . . . . . . . . . . . . . . . . . . . . . . . . . 5-28
Customer Assistance . . . . . . . . . . 13-6 Offices . . . . . . . . . . . . . . . . . . 13-5, 13-6
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 13-6
Customer Information
Service PublicationsOrdering Information . . . . . . 13-18
Customer Satisfaction Procedure . . . . . . . . . . . . . . 13-1, 13-3
D
Damage Repair, Collision . . . . . 13-15
Danger, Warnings, and
Cautions . . . . . . . . . . . . . . . . . . . . . . . . iv
Data Recorders, Event . . . . . . . 13-20
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 6-3
Defensive Driving . . . . . . . . . . . . . . . 9-3
Delayed Locking . . . . . . . . . . . . . . . . 2-8
Devices, Auxiliary . . . . . . . . . . . . . 7-19
Diagnostics, OnStar
®. . . . . . . . . . 14-5
Distracted Driving . . . . . . . . . . . . . . . 9-2
Dome Lamps . . . . . . . . . . . . . . . . . . . 6-6
Door Ajar Messages . . . . . . . . . . . . . . . 5-35
Cargo Door Relocking . . . . . . . . . 2-7
Delayed Locking . . . . . . . . . . . . . . . 2-8
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Power Locks . . . . . . . . . . . . . . . . . . . 2-7
Rear Doors . . . . . . . . . . . . . . . . . . . 2-11
Side . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Sliding . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Drive Belt Routing, Engine . . . . . 12-5 Drive Systems
All-Wheel Drive . . . . . . . 10-29, 9-33
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . 5-28
Driving Characteristics andTowing Tips . . . . . . . . . . . . . . . . . 9-46
Defensive . . . . . . . . . . . . . . . . . . . . . . 9-3
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
For Better Fuel Economy . . . . . 1-21
Highway Hypnosis . . . . . . . . . . . . . 9-7
Hill and Mountain Roads . . . . . . . 9-7
If the Vehicle is Stuck . . . . . . . . . 9-10
Loss of Control . . . . . . . . . . . . . . . . 9-5
Off-Road Recovery . . . . . . . . . . . . 9-5
Vehicle Load Limits . . . . . . . . . . . 9-11
Wet Roads . . . . . . . . . . . . . . . . . . . . 9-6
Winter . . . . . . . . . . . . . . . . . . . . . . . . . 9-8
Dual Tire Rotation . . . . . . . . . . . . . . . . . . . . 10-64