2007 CHEVROLET EXPRESS PASSANGER engine

The main components of your instrument panel are the following:
A. Air Outlets. SeeOutlet Adjustment on
page 162.
B. Turn Signal/Multifunction Lever. SeeTurn
Signal/Multifunction Lever on page 147.
C. Instrument Panel Cluster. SeeInstrument Panel
Cluster on page 167.
D. Shift Lever. SeeStarting the Engine on
page 122.
E. Climate Control System. SeeClimate Control
System on page 160.
F. Audio System(s). SeeAudio System(s) on
page 187.
G. Exterior Lamp Controls. SeeExterior Lamps on
page 155.
H. Tow/Haul Mode Button. See “Tow/Haul Mode”
underTowing a Trailer on page 269.I. Rear Heating System (If Equipped). SeeRear
Heating System on page 163.
J. Accessory Power Outlets/Cigarette Lighter. See
Accessory Power Outlet(s) on page 158and
Ashtray(s) and Cigarette Lighter on page 159.
K. Airbag Off Switch. SeeAirbag Off Switch
on page 86.
L. Storage Compartment. SeeStorage Areas on
page 139.
M. StabiliTrak
®Button (If Equipped), Passenger
Airbag Status Indicator, and High-Idle System
(If Equipped). SeeStabiliTrak
®System on
page 235orPassenger Airbag Status Indicator
on page 172.
145

Rear Window Defogger
Some vehicles may have a rear window defogger.
turn the rear window defogger on or off. Be sure to
clear as much snow from the window as possible.
The rear window defogger uses a warming grid to
remove fog or frost from the rear window and
will only work when the ignition is RUN.
The rear window defogger will turn off several
minutes after the button is pressed. If turned on
again, the defogger will run for several more
minutes before turning off. The defogger can also
be turned off by pressing the button again or
by turning off the engine.
Notice:Do not use a razor blade or sharp
object to clear the inside rear window. Do not
adhere anything to the defogger grid lines
in the rear glass. These actions may damage
the rear defogger. Repairs would not be
covered by your warranty.
Outlet Adjustment
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 your 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
your vehicle more effectively.
162

Warning Lights, Gages,
and Indicators
This part describes the warning lights and gages on
your vehicle. The pictures help to locate them.
Warning lights and gages can signal that something
is wrong before it becomes serious enough to
cause an expensive repair or replacement. Paying
attention to the warning lights and gages could also
save you or others from injury.
Warning lights come on when there may be or is a
problem with one of your vehicle’s functions. As
the details show on the next few pages, some
warning lights come on briefly when you start the
engine just to let you know they are working. If
you are familiar with this section, you should
not be alarmed when this happens.Gages can indicate when there may be or is a
problem with one of your vehicle’s functions. Often
gages and warning lights work together to let
you know when there is a problem with your
vehicle.
When one of the warning lights comes on and
stays on as you are driving, or when one of
the gages shows there may be a problem, check
the section that tells you what to do about it.
Please follow this manual’s advice. Waiting to do
repairs can be costly and even dangerous. So
please get to know your vehicle’s warning
lights and gages. They can be a big help.
166

Instrument Panel Cluster
The instrument panel cluster is designed to let you know at a glance how the vehicle is running. You will
know how fast you are going, how much fuel you are using, and many other things you will need to
know to drive safely and economically. If your vehicle has the DURAMAX
®Diesel engine, see the
DURAMAX®Diesel manual for more information.
United States version shown, Canada similar
167

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’s frontal airbag. SeePassenger
Sensing System on page 89for more on this,
including important safety information.
If, after several seconds, all 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.
{CAUTION:
If the off indicator and the airbag
readiness light ever come on together, it
means that something may be wrong with
the airbag system. If this ever happens,
have the vehicle serviced promptly,
because an adult-size person sitting in the
right front passenger seat may not have
the protection of the frontal airbag. See
Airbag Readiness Light on page 169.
Charging System Light
The charging system
light will come on briefly
when you turn on the
ignition, but the
engine is not running,
as a check to show you
it is working.
It should go out once the engine is running. If it
stays on, or comes on while you are driving,
you may have a problem with the charging system.
It could indicate that you have problems with a
generator drive belt, or another electrical problem.
Have it checked right away. Driving while this
light is on could drain your battery.
If you must drive a short distance with the light on,
be certain to turn off all your accessories, such
as the radio and air conditioner.
174

Voltmeter Gage
When your engine is not
running, but the ignition
is on (in the RUN
position), this gage
shows your battery’s
state of charge in
DC volts.
When the engine is running, the gage shows the
condition of the charging system. Readings
between the low and high warning zones indicate
the normal operating range.
Readings in the low warning zone may occur
when a large number of electrical accessories are
operating in the vehicle and the engine is left at
an idle for an extended period. This condition
is normal since the charging system is not able to
provide full power at engine idle. As engine
speeds are increased, this condition should correct
itself as higher engine speeds allow the charging
system to create maximum power.You can only drive for a short time with the
reading in either warning zone. If you must drive,
turn off all unnecessary accessories.
Readings in either warning zone indicate a
possible problem in the electrical system. Have
the vehicle serviced as soon as possible.
Brake System Warning Light
With the ignition on, the brake system warning
light will come on when you set your parking
brake. The light will stay on if your parking brake
doesn’t release fully. If it stays on after your
parking brake is fully released, it means you have
a brake problem.
Your vehicle’s hydraulic brake system is divided
into two parts. If one part isn’t working, the
other part can still work and stop you. For good
braking, though, you need both parts working well.
If the warning light comes on, there could be a
brake problem. Have your brake system inspected
right away.
175

This light should come on briefly when you turn
the ignition key to RUN. If it doesn’t come on then,
have it fixed so it will be ready to warn you if
there’s a problem.
If the light comes on while you are driving, pull off
the road and stop carefully. You may notice that the
pedal is harder to push. Or, the pedal may go closer
to the floor. It may take longer to stop. If the light is
still on, have the vehicle towed for service. See
Towing Your Vehicle on page 266.
{CAUTION:
Your brake system may not be working
properly if the brake system warning light
is on. Driving with the brake system
warning light on can lead to an accident.
If the light is still on after you have pulled
off the road and stopped carefully, have
the vehicle towed for service.
Anti-Lock Brake System
Warning Light
With the Anti-Lock
Brake System (ABS),
this light will come
on when you start your
engine and may
stay on for several
seconds, that is normal.
United StatesCanada
176

Engine Coolant Temperature Gage
This gage shows the engine coolant temperature.
If the gage pointer moves into the red area
your engine is too hot!
It means that your engine coolant has overheated.
If you have been operating your vehicle under
normal operating conditions, you should pull off the
road, stop your vehicle, and turn off the engine
as soon as possible.
SeeEngine Overheating on page 315.
Malfunction Indicator Lamp
Check Engine Light
Your vehicle has a
computer which
monitors operation of
the fuel, ignition, and
emission control
systems.
This system is called OBD II (On-Board
Diagnostics-Second Generation) and is intended
to assure that emissions are at acceptable
levels for the life of the vehicle, helping to produce
a cleaner environment. The Check Engine light
comes on to indicate that there is a problem and
service is required. Malfunctions often will be
indicated by the system before any problem is
apparent. This may prevent more serious damage
to your vehicle. This system is also designed to
assist your service technician in correctly
diagnosing any malfunction.
United StatesCanada
178