ad blue CHEVROLET EXPRESS 2012 User Guide

Black plate (27,1)Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707481) - 2015 - CRC - 4/30/14
Infotainment System 7-27
Voice Pass-Thru
Voice pass-thru allows access to the
voice recognition commands on the
cell phone. See your cell phone
manufacturer's user guide to see if
the cell phone supports this feature.
To access contacts stored in the cell
phone:
1. Press and hold
b/gfor
two seconds.
2. Say “Bluetooth.” This command
can be skipped.
3. Say “Voice.” The system
responds “OK, accessing
.”
The cell phone's normal prompt
messages will go through their cycle
according to the phone's operating
instructions.
Dual Tone Multi-Frequency
(DTMF) Tones
The Bluetooth system can send
numbers and the numbers stored as
name tags during a call. You can
use this feature when calling a
menu-driven phone system.
Account numbers can also be
stored for use.
Sending a Number or Name Tag
During a Call
1. Press
b/g. The system
responds “Ready,”followed by
a tone.
2. Say “Dial.”
3. Say the number or name tag to send.
Clearing the System
Unless information is deleted out of
the in-vehicle Bluetooth system, it
will be retained indefinitely. This
includes all saved name tags in the
phone book and phone pairing
information. For information on how
to delete this information, see the
previous section “Deleting a Paired
Phone” and the previous sections
on deleting name tags.
Other Information
The Bluetooth®word mark and
logos are owned by the Bluetooth®
SIG, Inc. and any use of such marks
by General Motors is under license.
Other trademarks and trade names
are those of their respective owners.
See Radio Frequency Statement on
page 13-12.

Black plate (52,1)Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707481) - 2015 - CRC - 4/30/14
9-52 Driving and Operating
Weight-Distributing Hitches
and Weight Carrying Hitches
A weight distributing hitch may be
useful with some trailers. Use the
following guidelines to determine if a
weight distributing hitch should
be used.
1. Body to Ground Distance
2. Front of Vehicle
When using a weight-distributing
hitch, the hitch must be adjusted so
the distance (1) remains the same
both before and after coupling the
trailer to the tow vehicle.
Safety Chains
Always attach chains between the
vehicle and the trailer. Cross the
safety chains under the tongue of
the trailer to help prevent the tongue
from contacting the road if it
becomes separated from the hitch.
Always leave just enough slack so
the rig can turn. Never allow safety
chains to drag on the ground.
Trailer Brakes
A loaded trailer that weighs more
than 680 kg (1,500 lb) needs to have
its own brake system that is
adequate for the weight of the
trailer. Be sure to read and follow
the instructions for the trailer brakes
so they are installed, adjusted and
maintained properly.
Trailer Wiring Harness
The optional heavy-duty trailer
wiring package includes a wiring
harness, with a seven-pin connector
at the rear of the vehicle and a
four-wire harness assembly under
the driver side of the instrumentpanel. The four-wire harness
assembly comes without a
connector.
If the vehicle does not have a trailer
hitch, the seven-wire harness
assembly with connector is taped
together and located in a frame
pocket at the driver side rear left
corner of the frame.
If the vehicle has a trailer hitch, the
seven-wire harness assembly with
connector is attached to a bracket
on the hitch platform. In both cases,
the seven-wire harness has a
connector and includes a 30-amp
feed wire.
The seven-wire harness connector
contains the following trailer circuits:
.Light Green: Back-up Lamps
(10A fuse)**
.White: Ground
.Dark Blue: Trailer Brake Signal
.Dark Green: Right Rear Stop
and Turn Signal*

Black plate (53,1)Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707481) - 2015 - CRC - 4/30/14
Driving and Operating 9-53
.Red/Black Stripe: Battery Feed
(30A Fuse)
.Brown: Trailer Park Lamp
Supply Voltage (15A fuse)**
.Yellow: Left Rear Stop and Turn
Signal *
The four-wire harness (without
connector) contains the following
circuits:
.Black: Ground
.Red/White: Battery Feed
.Dark Blue: Trailer Brake Signal
.Light Blue: CHMSL/Stoplamp
Supply Voltage
* If the vehicle is a cutaway with
trailer provisions, a 15 amp fuse will
be shared for both left/stop trailer
turn and right/stop trailer turn
signals. However, the cutaway
lighting connector will have a
10 amp fuse for each signal. ** If the vehicle is a cutaway with
trailer provisions, a 15 amp fuse will
be shared for trailer park lamps and
cutaway rear lighting connector park
lamps. Also, a 10 amp fuse will be
shared for trailer back-up lamps and
cutaway rear lighting connector
back-up lamps.
Tow/Haul Mode
This button is on the instrument
panel, to the right of the steering
wheel.
Pressing this button turns on and off
the Tow/Haul Mode.
This indicator light on the instrument
cluster comes on when the Tow/
Haul Mode is on.Tow/Haul is a feature that assists
when pulling a heavy trailer or a
large or heavy load. See
Tow/Haul
Mode on page 9-27.
Tow/Haul is designed to be most
effective when the vehicle and
trailer combined weight is at least
75 percent of the vehicle Gross
Combined Weight Rating (GCWR).
See “Weight of the Trailer” inTrailer
Towing on page 9-47. Tow/Haul is
most useful under the following
driving conditions:
.When pulling a heavy trailer or a
large or heavy load through
rolling terrain.
.When pulling a heavy trailer or a
large or heavy load in
stop-and-go traffic.
.When pulling a heavy trailer or a
large or heavy load in busy
parking lots where improved low
speed control of the vehicle is
desired.

Black plate (1,1)Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707481) - 2015 - CRC - 4/30/14
OnStar 14-1
OnStar
OnStar Overview
OnStar Overview . . . . . . . . . . . . 14-1
OnStar Services
Emergency . . . . . . . . . . . . . . . . . . 14-2
Security . . . . . . . . . . . . . . . . . . . . . . 14-3
Navigation . . . . . . . . . . . . . . . . . . . 14-3
Connections . . . . . . . . . . . . . . . . . 14-4
Vehicle Diagnostics . . . . . . . . . . 14-6
OnStar Additional Information
OnStar AdditionalInformation . . . . . . . . . . . . . . . . . 14-6
OnStar Overview
=Voice Command Button
QBlue OnStar Button
>Emergency Button
This vehicle may be equipped with a
comprehensive, in-vehicle system
that can connect to a live OnStar
Advisor for Emergency, Security,
Navigation, Connection, and
Diagnostic Services. OnStar
services may require a paid
subscription. OnStar requires the
vehicle battery and electrical
system, cellular service, and GPS satellite signals to be available and
operating. OnStar acts as a link to
existing public emergency service
providers. OnStar may collect
information about you and your
vehicle, including location
information. See OnStar
’s Terms
and Conditions and Privacy
Statement for more details
including system limitations at
www.onstar.com (U.S.) or
www.onstar.ca (Canada).
The OnStar system status light is
next to the OnStar buttons. If the
status light is:
.Solid Green: System is on.
.Flashing Green: On a call.
.Red: Indicates a problem.
.Off: System is off. Press the blue
OnStar button twice to speak
with an OnStar Advisor.

Black plate (2,1)Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707481) - 2015 - CRC - 4/30/14
i-2 INDEX
BluetoothOverview . . . . . . . . . . . . . . . . . . . . . 7-20
Brake System Warning Light . . . . . . . . 5-19
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 10-22 Antilock . . . . . . . . . . . . . . . . . . . . . . . 9-28
Fluid . . . . . . . . . . . . . . . . . . . . . . . . 10-23
Parking . . . . . . . . . . . . . . . . . . . . . . . 9-29
System Messages . . . . . . . . . . . . 5-29
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
Break-In, New Vehicle . . . . . . . . . 9-14
Bulb Replacement . . . . . . . . . . . . 10-33 Center High-MountedStoplamp (CHMSL) . . . . . . . 10-32
Front Turn Signal, Sidemarker, and
Parking Lamps . . . . . . . . . . . . 10-31
Halogen Bulbs . . . . . . . . . . . . . . 10-29
Headlamp Aiming . . . . . . . . . . . 10-28
Headlamps . . . . . . . . . . . . . . . . . 10-29
License Plate Lamps . . . . . . . 10-33
Taillamps . . . . . . . . . . . . . . . . . . . 10-31
Buying New Tires . . . . . . . . . . . . . 10-59C
Calibration . . . . . . . . . . . . . . . . . . . . . . 5-4
California Fuel Requirements . . . . . . . . . . . 9-40
Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 10-2
Warning . . . . . . . . . . . . . . . . . . . . . . 10-2
Camera Rear Vision (RVC) . . . . . . . . . . . . 9-36
Canadian Vehicle Owners . . . . . . . . iii
Capacities and Specifications . . . . . . . . . . . . . . . . 12-2
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 9-21
Winter Driving . . . . . . . . . . . . . . . . . 9-7
Cargo Door Relocking . . . . . . . . . . 2-6
Cautions, Danger, and
Warnings . . . . . . . . . . . . . . . . . . . . . . . . iv
CD Player . . . . . . . . . . . . . . . . . . . . . 7-11
Center High-Mounted Stoplamp (CHMSL) . . . . . . . . . 10-32
Chains, Tire . . . . . . . . . . . . . . . . . . 10-63
Charging System Light . . . . . . . . 5-16 Check
Engine Light . . . . . . . . . . . . . . . . . . 5-17
Ignition
Transmission Lock . . . . . . . . 10-27
Child Restraints Infants and YoungChildren . . . . . . . . . . . . . . . . . . . . . 3-30
Lower Anchors and Tethers for Children . . . . . . . . . 3-36
Older Children . . . . . . . . . . . . . . . . 3-28
Securing . . . . . . . . . . . . . . . . 3-43, 3-45
Systems . . . . . . . . . . . . . . . . . . . . . . 3-32
Cigarette Lighter . . . . . . . . . . . . . . . . 5-8
Circuit Breakers . . . . . . . . . . . . . . 10-35
Cleaning Exterior Care . . . . . . . . . . . . . . . 10-80
Interior Care . . . . . . . . . . . . . . . . 10-85
Climate Control Systems . . . . . . . 8-1 Air Conditioning . . . . . . . . . . . . . . . 8-1
Heating . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5
Rear Heating System . . . . . . . . . . 8-4
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Cluster, Instrument . . . . . . . . . . . . 5-10
Collision Damage Repair . . . . . . 13-9

Black plate (8,1)Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
7707481) - 2015 - CRC - 4/30/14
i-8 INDEX
OutletsPower . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Overheating, Engine . . . . . . . . . . 10-18
Overview, Infotainment System . . . . . . . . . . . . . . . . . . . . 7-2, 7-4
P
ParkShifting Into . . . . . . . . . . . . . . . . . . . 9-19
Shifting Out of . . . . . . . . . . . . . . . . 9-20
Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . 9-29
Brake and P (Park)Mechanism Check . . . . . . . . 10-27
Over Things That Burn . . . . . . . 9-21
Parking Assist . . . . . . . . . . . . . . . . . 9-35
Perchlorate Materials Requirements, California . . . . . 10-2
Personalization Vehicle . . . . . . . . . . . . . . . . . . . . . . . 5-38
Phone Bluetooth . . . . . . . . . . . . . . . . . . . . . 7-20
Power
Door Locks . . . . . . . . . . . . . . . . . . . . 2-6
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Outlets . . . . . . . . . . . . . . . . . . . . . . . . 5-7 Power (cont'd)
Protection, Battery . . . . . . . . . . . . . 6-6
Retained Accessory (RAP) . . . 9-19
Seat Adjustment . . . . . . . . . . . . . . . 3-3
Steering Fluid . . . . . . . . . . . . . . . 10-20
Windows . . . . . . . . . . . . . . . . . . . . . 2-14
Pregnancy, Using Safety Belts . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
Program
Courtesy Transportation . . . . . . 13-7
Proposition 65 Warning, California . . . . . . . . . . . . . . . . . . . . . 10-2
R
Radio FrequencyIdentification (RFID) . . . . . . . . . 13-12
Radio Frequency Statement . . . . . . . . . . . . . . . . . . . 13-12
Radios AM-FM Radio . . . . . . . . . . . . . . . . . . 7-7
Reception . . . . . . . . . . . . . . . . . . . . . 7-9
Satellite . . . . . . . . . . . . . . . . . . . . . . . . 7-8
Reading Lamps . . . . . . . . . . . . . . . . . 6-5
Rear Axle . . . . . . . . . . . . . . . . . . . . . 10-25 Locking . . . . . . . . . . . . . . . . . . . . . . . 9-31
Rear Climate Control System . . . 8-5 Rear Doors . . . . . . . . . . . . . . . . . . . . 2-10
Rear Heating System . . . . . . . . . . . 8-4
Rear Seats . . . . . . . . . . . . . . . . . . . . . 3-4
Rear Vision Camera (RVC) . . . . 9-36
Rearview Mirrors . . . . . . . . . . . . . . 2-13
Reclining Seatbacks . . . . . . . . . . . . 3-3
Recommended Fluids and
Lubricants . . . . . . . . . . . . . . . . . . . 11-11
Recording Vehicle Data . . . . . . . . . . . . . . . . 13-14
Records
Maintenance . . . . . . . . . . . . . . . . .11-14
Recreational Vehicle Towing . . . . . . . . . . . . . . . . . . . . . . 10-78
Reimbursement Program, GM Mobility . . . . . . . . . . . . . . . . . . 13-5
Remote Keyless Entry (RKE) System . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Remote Vehicle Start . . . . . . . . . . . 2-4
Replacement Bulbs . . . . . . . . . . . 10-33
Replacement Parts Airbags . . . . . . . . . . . . . . . . . . . . . . . 3-27
Maintenance . . . . . . . . . . . . . . . . .11-13
Replacing Airbag System . . . . . . 3-27
Replacing LATCH System Parts after a Crash . . . . . . . . . . . 3-42