2007 CHEVROLET TRAIL BLAZER Owners Manual

You may also notice that the air conditioning
compressor will run while in recirculation mode.
This is normal and will help to prevent fogging.
If the weather is cold and damp, the system may
cause the windows to fog while using recirculation
mode. If the windows do start to fog, select
defog or defrost mode and increase fan speed.
Recirculation mode, if selected, will be cleared
when the engine is turned off.
#A/C (Air Conditioning):Press this button
to manually turn the air conditioning system on
or off. When the system is on, the system
will automatically begin to cool and dehumidify
the air inside of your vehicle. The air conditioning
symbol will appear on the display when the
air conditioning is on and will turn off when the
air conditioning is off.If you turn the air conditioning off while in front
defrost or defog mode, the air conditioning symbol
will turn off, however, the A/C compressor will
remain on to help de-humidify the air inside
the vehicle. If one of the other modes is selected
the compressor will then turn the A/C off until
it is selected again or the AUTO button is pressed.
To avoid fogging the inside glass on rainy and
humid days at a temperature above freezing,
press the air conditioning button to run the A/C
compressor. Also it is best to avoid the use of the
recirculation mode except when maximum air
conditioning performance is needed or for short
times to avoid exterior odors.
You may notice a slight change in engine
performance when the air-conditioning compressor
shuts off and turns on again. This is normal.
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Defogging and Defrosting
Fog on the inside of the windows is a result of
moisture condensing on the cool window glass.
This can be reduced if the climate control system
is used properly. You can use either defog or
front defrost to clear fog or frost from your
windshield.
-(Defog):Use this setting to clear the windows
of fog or moisture. This setting will deliver air
to the oor and windshield outlets.
0(Front Defrost):Press the front defrost button
to clear the windshield and side windows of
frost or fog quickly. The system will automatically
control the fan speed if you select defrost
from AUTO mode. If the outside temperature is
40°F (4°C) or warmer, your air conditioning
compressor will automatically run to help
dehumidify the air and dry the windshield.
Do not drive the vehicle until all the windows
are clear.
Rear Window Defogger
If your vehicle has the rear window defogger a
warming grid is used to remove fog from the
rear window.
<(Rear):Press this button to turn the rear
window defogger on or off.
An indicator light in the button will come on to
let you know that the rear window defogger
is activated.
The rear window defogger will turn off
approximately 10 minutes after the button is
pressed. If you need additional warming time,
press the button again.
If your vehicle has heated mirrors, they will come
on when this button is pressed.
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.
194

Outlet Adjustment
Use the air outlets located in the center and
on the side of the instrument panel to direct
the airow.
Operation Tips

Keep the hood and front air inlets free of
ice, snow, or any other obstruction, such
as leaves. The heater and defroster will work
better, reducing the chance of fogging the
inside of your windows.
When you enter a vehicle in cold weather,
set the fan speed to maximum airow for
a few moments before driving. This helps
clear the intake ducts of snow and moisture,
and reduces the chance of fogging the
inside of your windows.
Keep the air path under the front seats
clear of objects. This helps air to circulate
throughout your vehicle.
Adding outside equipment to the front of the
vehicle, such as hood-air deectors, may
affect the performance of the heating and
air conditioning system. Check with your
dealer before adding equipment to the
outside of your vehicle.
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Rear Climate Control System
Your vehicle has one of the following rear climate
control systems. With either of these systems, the
rear climate controls will be disabled when the front
climate control system is in defrost. This occurs to
provide maximum airow to clear the windshield.
The temperature of the air coming through the rear
outlets is determined by the front passenger’s
temperature setting. Use the mode knob to change
the direction of airow (upper, bi-level or oor) to
the rear seat area.PWR (Power):Press this button to turn the
rear climate controls on or off.H(Panel):When panel mode is selected,
the rear system will distribute air from the
four headliner outlets.
)(Bi-level):When bi-level mode is selected,
the rear system will distribute air from the
four headliner outlets, the second seat side
oor outlets, and the third seat oor outlet.
6(Floor):When oor mode is selected, the rear
system will distribute air from the second seat
side oor outlets and the third seat oor outlet.
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If your vehicle has the rear seat audio system,
the lower buttons are used to adjust the rear seat
climate control system. The temperature of the
air coming through the rear outlets is determined
by the front passenger’s temperature setting.
P(On/Off):Press this button to turn the rear
climate controls on or off.
z9y(Fan):Press this button to adjust the
fan speed.
z\y(Mode):Press this button to change
the direction of airow (panel, bi-level or oor)
to the rear seat area.
The rear control will only turn on if the front is
on and not in defrost mode.
197

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 briey 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.
Your vehicle may also have a Driver Information
Center (DIC) that works along with the warning
lights and gages. SeeDriver Information
Center (DIC) on page 220for more information.
198

Instrument Panel Cluster
Your instrument panel cluster is designed to let you know at a glance how your vehicle is running.
You will know how fast you are going, about how much fuel you have used, and many other things
you will need to know to drive safely and economically.
United States Uplevel version shown, Canada, Base and SS Model similar
199

Speedometer and Odometer
The speedometer lets you see your speed in
both miles per hour (mph) and kilometers
per hour (km/h).
The odometer shows how far your vehicle
has been driven, in either miles (used in the
United States) or kilometers (used in Canada).
The odometer mileage can be checked without
the vehicle running. Press the trip stem located
on the instrument panel cluster.
If your vehicle needs a new odometer installed,
the new one will be set to the correct mileage
total of the old odometer.
Trip Odometer
The trip odometer can tell you how far your
vehicle has been driven since you last set the
trip odometer to zero.
The odometer works together with the Driver
Information Center (DIC). You can set a Trip A
and Trip B odometer. See “Trip Information”
underDIC Operation and Displays on page 221.
The odometer mileage can be checked without
the vehicle running. Press the trip stem on
the instrument panel cluster.
200