ignition CHEVROLET EXPRESS CARGO VAN 2012 1.G User Guide

Black plate (17,1)Chevrolet Express Owner Manual - 2012
Keys, Doors, and Windows 2-17
If the vehicle has power windows,
the controls are located on each of
the side doors.The driver door has a switch for the
passenger window also. The power
windows will work when the ignition
has been turned to ON/RUN or
ACC/ACCESSORY, or when
Retained Accessory Power (RAP) is
active. See
Retained Accessory
Power (RAP) on page 9‑21.
Press the switch to lower the
window.
Pull up on the front edge of the
switch to raise the window.
Express‐Down
The driver window switch also has
an express-down feature that allows
the window to be lowered without
holding the switch. Press fully and
release the window switch marked
AUTO to activate the express-down
mode. This mode can be cancelled
at any time by pulling up on the
switch. To open the window part
way, lightly tap the switch until the
window is at the desired position.

Black plate (28,1)Chevrolet Express Owner Manual - 2012
3-28 Seats and Restraints
United StatesCanada and Mexico
To turn off the right front passenger
frontal airbag, insert the ignition key
into the switch, push in, and move
the switch to the off position. The airbag off light will come on
to let you know the right front
passenger airbag is off. The airbag
off light will stay on to remind you
that the airbag is off. See
Airbag
On-Off Light on page 5‑18. The right
front passenger airbag will remain
off until you turn it back on again.
{WARNING
If the airbag readiness light
ever comes on and stays on, it
means that something may be
wrong with the airbag system.
For example, the right front
passenger airbag could inflate
even though the airbag on-off
switch is turned off.
(Continued)

Black plate (29,1)Chevrolet Express Owner Manual - 2012
Seats and Restraints 3-29
WARNING (Continued)
To help avoid injury to yourself or
others, have the vehicle serviced
right away. SeeAirbag Readiness
Light on page 5‑18 for more
information, including important
safety information.
United StatesCanada and Mexico
To turn the right front passenger
airbag on again, insert the ignition
key into the switch, push in, and
move the switch to the on position.
The right front passenger frontal
airbag is now enabled, and
may inflate. See Airbag On-Off Light
on page 5‑18 for more information.

Black plate (13,1)Chevrolet Express Owner Manual - 2012
Instruments and Controls 5-13
If the vehicle has a diesel engine,
see the Duramax diesel supplement
for more information.
Speedometer
The speedometer shows the
vehicle's speed in either kilometers
per hour (km/h) or miles per
hour (mph).
Odometer
The odometer shows how far the
vehicle has been driven, in either
kilometers or miles.
This vehicle has a tamper‐resistant
odometer. The digital odometer will
read 999,999 if it is turned back.
If the vehicle needs a new odometer
installed, it must be set to the
mileage total of the old odometer.
If that is not possible, then it must
be set at zero and a label must be
put on the driver door to show the
old mileage reading when the new
odometer was installed.
Trip Odometer
The trip odometer can show how far
the vehicle has been driven since
the trip odometer was last set
to zero.
Press the
3on the Driver
Information Center (DIC) switch to
display the trip odometer and the
regular odometer information.
See Driver Information Center (DIC)
on page 5‑28 for more information
on resetting the trip odometer.
To display the odometer reading
with the ignition off, press the
3
on the Driver Information
Center (DIC) switch.

Black plate (14,1)Chevrolet Express Owner Manual - 2012
5-14 Instruments and Controls
Fuel Gauge
Metric
English
The fuel gauge, when the ignition is
on, indicates how much fuel is left in
the vehicle fuel tank.
An arrow on the fuel gauge
indicates the side of the vehicle the
fuel door is on.
The gauge first indicates empty
before the vehicle is out of fuel, and
the fuel tank should be
refueled soon. Listed are four situations customers
might experience with the fuel
gauge. None of these indicate a
problem with the fuel gauge:
.At the gas station, the fuel pump
shuts off before the gauge
reads full.
.It takes a little more or less fuel
to fill up than the fuel gauge
indicated. For example, the
gauge may have indicated the
tank was half full, but it actually
took a little more or less than
half the tank's capacity to fill
the tank.
.The gauge moves a little while
turning a corner or speeding up.
.The gauge does not go back to
empty when the ignition is
turned off.
If the vehicle has a diesel engine,
see the Duramax diesel supplement
for more information.

Black plate (16,1)Chevrolet Express Owner Manual - 2012
5-16 Instruments and Controls
Engine Coolant
Temperature Gauge
Metric
English
This gauge shows the engine
coolant temperature.
It also provides an indicator of how
hard the vehicle is working. During a
majority of the operation, the gauge
wil read 100°C (210°F) or less. If the
vehicle is pulling a load or going up
hills, it is normal for the temperature
to fluctuate and approach the 122°C
(250°F) mark. If the gauge reaches
the 125°C (260°F) mark, it indicates
that the cooling system is working
beyond its capacity. See
Engine Overheating on
page 10‑22.
Voltmeter Gauge
When the engine is not running, but
the ignition is on, this gauge shows
the battery's state of charge in
DC volts.
When the engine is running, the
gauge shows the condition of the
charging system. Readings between
the low and high warning zones
indicate the normal operating range.

Black plate (18,1)Chevrolet Express Owner Manual - 2012
5-18 Instruments and Controls
The passenger safety belt reminder
light and chime may turn on if an
object is put on the seat such as a
briefcase, handbag, grocery bag,
laptop, or other electronic device.
To turn off the reminder light and/or
chime, remove the object from the
seat or buckle the safety belt.
Airbag Readiness Light
The system checks the airbag's
electrical system for possible
malfunctions. If the light stays on
it indicates there is an electrical
problem. The system check
includes the airbag sensor(s), the
pretensioners, the airbag modules,
the wiring and the crash sensing
and diagnostic module. For more
information on the airbag system,
seeAirbag System on page 3‑18.
The airbag readiness light flashes
for a few seconds when the engine
is started. If the light does not come
on then, have it fixed immediately.
{WARNING
If the airbag readiness light stays
on after the vehicle is started or
comes on while driving, it means
the airbag system might not be
working properly. The airbags in
the vehicle might not inflate in a
crash, or they could even inflate
without a crash. To help avoid
injury, have the vehicle serviced
right away. For vehicles with a remote start, the
airbag readiness light will stay on
until the driver places the ignition
switch to the ON/RUN position.
If there is a problem with the airbag
system, an airbag Driver Information
Center (DIC) message can also
come on. See
Airbag System
Messages on page 5‑40 for more
information.
Airbag On-Off Light
When the right front passenger
airbag is manually turned off using
the airbag on-off switch on the
instrument panel, if equipped, the
indicator light OFF or the off symbol
will come on and stay on as a
reminder that the airbag has been
turned off. This light will go off when
the airbag has been turned on. See
Airbag On-Off Switch on page 3‑26
for more information, including
important safety information.

Black plate (20,1)Chevrolet Express Owner Manual - 2012
5-20 Instruments and Controls
Passenger Airbag Status
Indicator
If the vehicle has a passenger
sensing system, the instrument
panel will have a passenger airbag
status indicator. SeePassenger
Sensing System on page 3‑30 for
important safety information.
United States
Canada and Mexico
When the vehicle is started, the
passenger airbag status indicator
will light ON and OFF, or the symbol
for on and off, for several seconds as a system check. If you are using
remote start, if equipped, to start the
vehicle from a distance, you may
not see the system check. Then,
after several more seconds, the
status indicator will light either ON
or OFF, or either the on or off
symbol to let you know the status of
the right front passenger frontal
airbag.
If the word ON or the on symbol is
lit on the passenger airbag status
indicator, it means that the right
front passenger frontal airbag is
enabled, and may inflate.
If the word OFF or the off symbol is
lit on the airbag status indicator, it
means that the passenger sensing
system has turned off the right front
passenger frontal airbag.
If, after several seconds, both status
indicator lights remain on, or if there
are no lights at all, there may be a
problem with the lights or the
passenger sensing system.
See your dealer for service.
{WARNING
If the airbag readiness light ever
comes on and stays on, it means
that something may be wrong
with the airbag system. To help
avoid injury to yourself or others,
have the vehicle serviced right
away. See
Airbag Readiness
Light on page 5‑18 for more
information, including important
safety information.
Charging System Light
This light comes on briefly when the
ignition key is turned to START, but
the engine is not running, as a
check to show it is working.

Black plate (21,1)Chevrolet Express Owner Manual - 2012
Instruments and Controls 5-21
If it does not, have the vehicle
serviced by your dealer.
The light should go out once the
engine starts. If it stays on,
or comes on while driving, there
could be a problem with the
charging system. A charging system
message in the Driver Information
Center (DIC) can also appear. See
Battery Voltage and Charging
Messages on page 5‑34for more
information. This light could indicate
that there are problems with a
generator drive belt, or that there is
an electrical problem. Have it
checked right away. If the vehicle
must be driven a short distance with
the light on, turn off accessories,
such as the radio and air
conditioner.
Malfunction
Indicator Lamp
A computer system called OBD II
(On-Board Diagnostics-Second
Generation) monitors the operation
of the vehicle to ensure emissions are at acceptable levels, to produce
a cleaner environment. This light
comes on when the vehicle is
placed in ON/RUN, as a check to
show it is working. If it does not,
have the vehicle serviced by your
dealer. See
Ignition Positions on
page 9‑16 for more information.
If the malfunction indicator lamp
comes on and stays on while the
engine is running, this indicates that
there is an OBD II problem and
service is required.
Malfunctions often are indicated by
the system before any problem is
apparent. Being aware of the light
can prevent more serious damage
to the vehicle. This system assists
the service technician in correctly
diagnosing any malfunction. Notice:
If the vehicle is
continually driven with this light
on, the emission controls might
not work as well, the vehicle fuel
economy might not be as good,
and the engine might not run as
smoothly. This could lead to
costly repairs that might not be
covered by the vehicle warranty.
Notice: Modifications made to the
engine, transmission, exhaust,
intake, or fuel system of the
vehicle or the replacement of the
original tires with other than
those of the same Tire
Performance Criteria (TPC) can
affect the vehicle's emission
controls and can cause this light
to come on. Modifications to
these systems could lead to
costly repairs not covered by the
vehicle warranty. This could also
result in a failure to pass a
required Emission Inspection/
Maintenance test. See
Accessories and Modifications on
page 10‑3.

Black plate (23,1)Chevrolet Express Owner Manual - 2012
Instruments and Controls 5-23
Emissions Inspection and
Maintenance Programs
Some local governments may have
programs to inspect the on-vehicle
emission control equipment. For the
inspection, the emission system test
equipment is connected to the
vehicle’s Data Link
Connector (DLC).
The DLC is under the instrument
panel to the left of the steering
wheel. See your dealer if assistance
is needed.
The vehicle may not pass
inspection if:
.The malfunction indicator lamp is
on with the engine running, or if
the light does not come on when
the ignition is turned to ON/RUNwhile the engine is off. See your
dealer for assistance in verifying
proper operation of the
malfunction indicator lamp.
.The OBD II (On-Board
Diagnostics) system determines
that critical emission control
systems have not been
completely diagnosed. The
vehicle would be considered not
ready for inspection. This can
happen if the 12-volt battery has
recently been replaced or run
down. The diagnostic system is
designed to evaluate critical
emission control systems during
normal driving. This can take
several days of routine driving.
If this has been done and the
vehicle still does not pass the
inspection for lack of OBD II
system readiness, your dealer
can prepare the vehicle for
inspection.
Brake System Warning
Light
The vehicle brake system consists
of two hydraulic circuits. If one
circuit is not working, the remaining
circuit can still work to stop the
vehicle. For normal braking
performance, both circuits need to
be working.
If the warning light comes on, there
could be a brake problem. Have the
brake system inspected right away.
MetricEnglish
This light should come on briefly
when ignition key is turned to ON/
RUN. If it does not come on, have it
fixed so it will be ready to warn if
there is a problem.