2012 CHEVROLET EXPRESS PASSANGER headlamp

Black plate (2,1)Chevrolet Express Owner Manual - 2012
6-2 Lighting
2(Headlamps):Turns on the
headlamps together with the
following:
.Parking Lamps
.Instrument Panel Lights
.Taillamps
.License Plate Lamps
If the headlamps are turned on
while the vehicle is on, the
headlamps turn off automatically
10 minutes after the ignition is
turned off. If the headlamps are
turned on while the vehicle is off,
the headlamps will continue to stay
on. To prevent the battery from
being drained, turn the control to
the
Oposition.
A warning chime sounds if the driver
door is opened while the ignition
switch is off and the headlamps
are on.
To change the headlamps from low
beam to high beam, pull the turn
signal/multifunction lever all the way
toward you. Then release it.
Exterior Lamps Off
Reminder
If a door is open, a reminder chime
sounds when the headlamps or
parking lamps are manually turned
on and the key is out of the ignition.
To turn off the chime, turn the
headlamp switch to
Oor AUTO and
then back on, or close and re‐open
the door. In the auto mode, the
headlamps turn off once the ignition
is in LOCK/OFF or may remain on
until the headlamp delay ends,
if enabled in the Driver Information
Center (DIC). See “Exit Lighting”
under Vehicle Personalization on
page 5‑42.
Headlamp High/
Low-Beam Changer
2 3
(Headlamp High/Low‐Beam
Changer): Pull the turn signal lever
all the way toward you to change
the headlamps from low to high
beam. Then release it.
This instrument panel cluster light
comes on when the high‐beam
headlamps are on.

Black plate (3,1)Chevrolet Express Owner Manual - 2012
Lighting 6-3
Flash-to-Pass
This feature is used to signal to the
vehicle ahead that you want
to pass.
If the headlamps are off or in the
low‐beam position, pull the turn
signal lever toward you to
momentarily switch to high beams.
Release the lever to turn the
high-beam headlamps off.
Daytime Running
Lamps (DRL)
DRL can make it easier for others to
see the front of the vehicle during
the day. Fully functional daytime
running lamps are required on all
vehicles first sold in Canada.
The DRL system comes on in
daylight when the following
conditions are met:
.The ignition is on.
.The exterior lamp control is in
the AUTO position.
.The shift lever is not in P (Park).
.The light sensor determines it
is daytime.When the DRL are on, the taillamps,
sidemarker, instrument panel lights,
and other lamps will not be on.
The automatic headlamp system
automatically switches from DRL to
the headlamps depending on the
darkness of the surroundings.
To turn off the DRL, turn the exterior
lamp control to
Oand then release
it. For vehicles first sold in Canada,
the transmission must be in the
P (Park) position, before the DRL
can be turned off.

Black plate (4,1)Chevrolet Express Owner Manual - 2012
6-4 Lighting
Automatic Headlamp
System
When it is dark enough outside and
the headlamp switch is in AUTO,
the automatic headlamp system
turns on the headlamps, along with
the taillamps, sidemarker lamps,
parking lamps, and the instrument
panel lights. The radio lights will
also be dim.
To turn off the automatic headlamp
system, turn the exterior lamp
control to the off position and then
release. For vehicles first sold in
Canada, the transmission must be
in the P (Park) position, before the
automatic headlamp system can be
turned off.
The vehicle has a light sensor
located on the top of the instrument
panel. Do not cover the sensor;
otherwise the system will come on
whenever the ignition is on.
The system may also turn on the
headlamps when driving through a
parking garage or tunnel.
There is a delay in the transition
between the daytime and nighttime
operation of the Daytime Running
Lamps (DRL) and the automatic
headlamp system so that driving
under bridges or bright overhead
street lights does not affect the
system.The DRL and automatic headlamp
system are only affected when the
light sensor sees a change in
lighting lasting longer than the
delay.
If the vehicle is started in a dark
garage, the automatic headlamp
system comes on immediately.
Once the vehicle leaves the garage,
it takes approximately 30 seconds
for the automatic headlamp system
to change to DRL if it is light
outside. During that delay, the
instrument panel cluster may not be
as bright as usual. Make sure the
instrument panel brightness control
is in the full bright position. See
Instrument Panel Illumination
Control on page 6‑6.

Black plate (6,1)Chevrolet Express Owner Manual - 2012
6-6 Lighting
Interior Lighting
Instrument Panel
Illumination Control
The knob for this feature is located
to the left of the steering column.
D(Instrument Panel Lights):
Push the knob to extend and then
turn clockwise or counterclockwise
to brighten or dim the instrument
panel lights and the radio display.
This only works if the headlamps or
parking lamps are on.
Dome Lamps
The dome lamps come on when any
door is opened. They turn off after
all the doors are closed.
The instrument panel brightness
knob extends when
Dis pressed.
To manually turn on the dome
lamps, press
Dthen turn the knob
clockwise to the farthest position.
In this position, the dome lamps
remain on whether a door is opened
or closed.
Dome Lamp Override
TheEDOME OFF button is
located above the instrument panel
brightness knob.
The dome lamp override sets the
dome lamps to remain off or
come on automatically when a
door is opened.

Black plate (8,1)Chevrolet Express Owner Manual - 2012
6-8 Lighting
A high electrical load occurs when
several of the following are on,
such as: headlamps, high beams,
fog lamps, rear window defogger,
climate control fan at high speed,
heated seats, engine cooling fans,
trailer loads, and loads plugged into
accessory power outlets.
EPM works to prevent excessive
discharge of the battery. It does this
by balancing the generator's output
and the vehicle's electrical needs.
It can increase engine idle speed to
generate more power, whenever
needed. It can temporarily reduce
the power demands of some
accessories.Normally, these actions occur in
steps or levels, without being
noticeable. In rare cases at the
highest levels of corrective action,
this action may be noticeable to the
driver. If so, a Driver Information
Center (DIC) message might be
displayed, such as SERVICE
BATTERY CHARGING SYSTEM.
If this messages displays, it is
recommended that the driver reduce
the electrical loads as much as
possible. See
Battery Voltage and
Charging Messages on page 5‑34.Battery Power Protection
This feature shuts off the dome
lamps if they are left on for more
than 10 minutes when the ignition is
in LOCK/OFF. This helps to prevent
the battery from running down.

Black plate (10,1)Chevrolet Express Owner Manual - 2012
9-10 Driving and Operating
To save fuel, run the engine for only
short periods as needed to warm
the vehicle and then shut the engine
off and close the window most of
the way to save heat. Repeat this
until help arrives but only when you
feel really uncomfortable from the
cold. Moving about to keep warm
also helps.
If it takes some time for help to
arrive, now and then when you run
the engine, push the accelerator
pedal slightly so the engine runs
faster than the idle speed. This
keeps the battery charged to restart
the vehicle and to signal for help
with the headlamps. Do this as little
as possible to save fuel.If the Vehicle Is Stuck
Slowly and cautiously spin the
wheels to free the vehicle when
stuck in sand, mud, ice, or snow.
If the vehicle has a traction system,
it can often help to free a stuck
vehicle. Refer to the vehicle's
traction system in the Index. If stuck
too severely for the traction system
to free the vehicle, turn the traction
system off and use the rocking
method.{WARNING
If the vehicle's tires spin at high
speed, they can explode, and you
or others could be injured. The
vehicle can overheat, causing an
engine compartment fire or other
damage. Spin the wheels as little
as possible and avoid going
above 55 km/h (35 mph).
For information about using tire
chains on the vehicle, see Tire
Chains on page 10‑71.

Black plate (1,1)Chevrolet Express Owner Manual - 2012
Vehicle Care 10-1
Vehicle Care
General Information
General Information . . . . . . . . . . 10-2
California Proposition65 Warning . . . . . . . . . . . . . . . . . 10-2
California Perchlorate Materials Requirements . . . . 10-2
Accessories and Modifications . . . . . . . . . . . . . . . 10-3
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . 10-4
Hood . . . . . . . . . . . . . . . . . . . . . . . . 10-4
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . 10-6
Engine Oil . . . . . . . . . . . . . . . . . . . 10-7
Engine Oil Life System . . . . . 10-10
Automatic Transmission Fluid (4-Speed Transmission) . . . 10-11
Automatic Transmission Fluid (6-Speed
Transmission) . . . . . . . . . . . . . 10-13
Engine Air Cleaner/Filter . . . . 10-16
Cooling System . . . . . . . . . . . . 10-18
Engine Coolant . . . . . . . . . . . . . 10-18
Engine Overheating . . . . . . . . 10-22 Engine Fan . . . . . . . . . . . . . . . . . 10-24
Power Steering Fluid . . . . . . . 10-24
Washer Fluid . . . . . . . . . . . . . . . 10-25
Brakes . . . . . . . . . . . . . . . . . . . . . 10-26
Brake Fluid . . . . . . . . . . . . . . . . . 10-27
Battery . . . . . . . . . . . . . . . . . . . . . 10-28
All-Wheel Drive . . . . . . . . . . . . . 10-29
Front Axle . . . . . . . . . . . . . . . . . . 10-30
Rear Axle . . . . . . . . . . . . . . . . . . 10-31
Noise Control System . . . . . . 10-31
Starter Switch Check . . . . . . . 10-33
Automatic Transmission Shift
Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . 10-33
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . 10-33
Park Brake and P (Park) Mechanism Check . . . . . . . . 10-34
Wiper Blade Replacement . . . . . . . . . . . . . . 10-34
Bulb Replacement
Bulb Replacement . . . . . . . . . . 10-35
Halogen Bulbs . . . . . . . . . . . . . . 10-35
Headlamps . . . . . . . . . . . . . . . . . 10-35
Front Turn Signal,Sidemarker, and Parking
Lamps . . . . . . . . . . . . . . . . . . . . 10-37
Taillamps . . . . . . . . . . . . . . . . . . . 10-38 Center High-Mounted
Stoplamp (CHMSL) . . . . . . . 10-39
License Plate Lamp . . . . . . . . 10-40
Replacement Bulbs . . . . . . . . . 10-40
Electrical System
Electrical System Overload . . . . . . . . . . . . . . . . . . 10-41
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . 10-41
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . 10-42
Floor Console Fuse Block . . . . . . . . . . . . . . . . . . . . . 10-46
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . 10-49
Tire Sidewall Labeling . . . . . . 10-50
Tire Designations . . . . . . . . . . . 10-52
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . 10-54
Tire Pressure . . . . . . . . . . . . . . . 10-56
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . 10-58
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . 10-59
Tire Inspection . . . . . . . . . . . . . . 10-62
Tire Rotation . . . . . . . . . . . . . . . 10-62
Dual Tire Rotation . . . . . . . . . . 10-64

Black plate (35,1)Chevrolet Express Owner Manual - 2012
Vehicle Care 10-35
Bulb Replacement
For the proper type of replacement
bulbs, seeReplacement Bulbs on
page 10‑40.
For any bulb‐changing procedure
not listed in this section, contact
your dealer.
Halogen Bulbs
{WARNING
Halogen bulbs have pressurized
gas inside and can burst if you
drop or scratch the bulb. You or
others could be injured. Be sure
to read and follow the instructions
on the bulb package.
Headlamps
Composite Headlamp
A. High‐Beam Headlamp
B. Low‐Beam Headlamp
To remove the headlamp assembly
from the vehicle and access the
bulbs:
1. Open the hood. See Hood on
page 10‑4 for more information.2. Remove the two bolts from the
headlamp assembly.
3. Lift the headlamp assembly to release the lower tabs from the
radiator support.
4. Turn the headlamp forward and upward to remove it from the
grille.