2007 CHEVROLET TRAIL BLAZER climate control

Electric Power Management
The vehicle has Electric Power Management
(EPM) that estimates the battery’s temperature and
state of charge. It then adjusts the voltage for
best performance and extended life of the battery.
When the battery’s state of charge is low, the
voltage is raised slightly to quickly put the charge
back in. When the state of charge is high, the
voltage is lowered slightly to prevent overcharging.
If the vehicle has a voltmeter gage or voltage
display on the Driver Information Center (DIC),
you may see the voltage move up or down.
This is normal. If there is a problem, an alert will
be displayed.
The battery can be discharged at idle if the
electrical loads are very high. This is true for all
vehicles. This is because the generator (alternator)
may not be spinning fast enough at idle to
produce all the power that is needed for very
high electrical loads.A high electrical load occurs when several of the
following loads are on: 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 Battery Saver Active or
Service Battery Charging System. If this message
is displayed, it is recommended that the driver
reduce the electrical loads as much as possible.
SeeDIC Warnings and Messages on page 224.
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Battery Run-Down Protection
This feature shuts off the dome, courtesy, and
vanity lamps if they are left on for more than
20 minutes when the ignition is off. This will
keep the battery from running down.
If the battery run-down protection shuts off the
interior lamps, it may be necessary to do one
of the following to return to normal operation:
Shut off all lamps and close all doors.
Turn the ignition key to RUN.
This feature will also turn off the parking lamps
and headlamps under most circumstances, if they
are left on. If you would like to turn them back
on, turn the exterior lamps knob.
Accessory Power Outlet(s)
With the accessory power outlets, you can plug in
auxiliary electrical equipment such as a cellular
telephone or CB radio.
Your vehicle has three accessory power outlets.
There are two outlets located below the climate
controls and one outlet is on the rear of the
center oor console.Remove the cover from the outlet to use the
outlet. Be sure to put the cover back on when
not using the accessory power outlet.
Certain electrical accessories may not be
compatible with the accessory power outlet and
could result in blown vehicle or adaptor fuses. If you
experience a problem, see your dealer for additional
information on the accessory power outlets.
Notice:Adding any electrical equipment to
your vehicle may damage it or keep other
components from working as they should.
The repairs would not be covered by your
warranty. Do not use equipment exceeding
maximum amperage rating of 20 amperes.
Check with your dealer/retailer before adding
electrical equipment.
When adding electrical equipment, be sure to
follow the proper installation instructions included
with the equipment.
Notice:Improper use of the power outlet can
cause damage not covered by your warranty.
Do not hang any type of accessory or accessory
bracket from the plug because the power
outlets are designed for accessory power
plugs only.
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Ashtray(s) and Cigarette Lighter
Your vehicle may have this feature. The ashtray
is removable and ts into the front cupholder.
Notice:If you put papers, pins, or other
ammable items in the ashtray, hot cigarettes
or other smoking materials could ignite
them and possibly damage your vehicle.
Never put ammable items in the ashtray.
To remove the ashtray, pull the covered bin out
of the cupholder.
To use the lighter, press it in all the way, and let
go. When it is ready, it will pop back out by itself.
Notice:Holding a cigarette lighter in while it is
heating will not allow the lighter to back away
from the heating element when it is hot. Damage
from overheating may occur to the lighter or
heating element, or a fuse could be blown. Do
not hold a cigarette lighter in while it is heating.
Do not use equipment exceeding maximum
amperage rating of 20 amperes.
Climate Controls
Dual Climate Control System
With this system you can control the heating,
cooling, and ventilation for your vehicle.
9(Fan):Turn the left knob clockwise or
counterclockwise to increase or decrease the fan
speed. If the knob is in off mode, outside air
still enters the vehicle, and is directed based on
the position of the mode knob. The temperature
can still be adjusted using the temperature knob.
Turn the right knob clockwise or counterclockwise
to direct the airow inside of your vehicle.
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To change the current mode, select one of the
following:
H(Vent):This mode directs air to the instrument
panel outlets.
)(Bi-Level):This mode directs about half of
the air to the instrument panel outlets; then directs
most of the remaining air to the oor outlets. A little
air is directed toward the windshield and the side
window outlets. Cooler air is directed to the upper
vents and warmer air to the oor outlets.
6(Floor):This mode directs most of the air to the
oor outlets with a little air directed to the windshield
and the side window outlets. The recirculation
button cannot be selected while in oor mode.
@(Recirculation):Recirculation mode is used
to recirculate the air inside of your vehicle. When
this button is pressed, an indicator light in the
button will come on to let you know that it is active.
Use this mode to help prevent outside odors and/or
dust from entering your vehicle or to help cool the
air inside of your vehicle more quickly. The air
conditioning compressor will also come on when
this mode is activated. While in recirculation mode,the windows may fog when the weather is cold and
damp. To clear the fog, select either the defog or
defrost mode and increase fan speed.
Defog and defrost modes are described later in this
section.
Driver’s Side Temperature Lever:The lever on
the left side of the climate control panel is
used to raise or lower the temperature on the
driver’s side of the vehicle. Slide the lever up or
down to adjust the temperature.
Passenger’s Side Temperature Lever:The lever
on the right side of the climate control panel is
used to raise or lower the temperature on the
passenger’s side of the vehicle. Slide the lever up
or down to adjust the temperature. This lever also
adjusts the temperature to the rear seat outlets.
When the temperature outside is 0°F (-18°C) or
lower, use the engine coolant heater, if the vehicle
has one, to provide warmer air, faster to your
vehicle.
#(Air Conditioning):Press this button to turn
the air-conditioning system on or off. When the
button is pressed, an indicator light will come on
and the system will begin to cool and dehumidify
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the air inside of the vehicle. You may notice a
slight change in engine performance when the
air conditioning compressor shuts off and turns
on again. This is normal.
Defogging and Defrosting
Fog on the inside of windows is a result of
high humidity (moisture) condensing on the
cool window glass. This can be minimized if the
climate control system is used properly. There
are two modes to choose from to clear fog or
frost from your windshield. Use the defog mode to
clear the windows of fog or moisture and warm
the passengers. Use the defrost mode to remove
fog or frost from the windshield more quickly.
Turn the right knob clockwise or counterclockwise
to select one of the following modes:
-(Defog):This mode directs the air to the
oor outlets, windshield and side window outlets.
The recirculation button cannot be selected
while in defog mode.
1(Defrost):This mode directs most of the
air to the windshield and the side window outlets,
with only a little air directed to the oor outlets.The air conditioning compressor may run to
dehumidify the air to prevent window fogging.
The recirculation button cannot be selected while
in defrost mode. 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 on 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 active. The rear window
defogger will automatically turn off approximately
ten minutes after the button is pressed.
If your vehicle has heated mirrors, this button will
activate them.
Notice:Do not use anything sharp on the
inside of the rear window. If you do, you could
cut or damage the warming grid, and the repairs
would not be covered by your warranty. Do not
attach a temporary vehicle license, tape, a decal
or anything similar to the defogger grid.
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Dual Automatic Climate Control
System
With this system you can control the heating,
cooling and ventilation for your vehicle. When
your vehicle is rst started and the climate control
system is on, or if the climate control system
has been turned on, the display will show
the driver’s temperature setting for ve seconds.
Then it will show the outside temperature.
9(Off):Press this button to turn off the entire
climate control system. Outside air will still enter the
vehicle, and will be directed to the oor. Press the
AUTO button, the mode button, the fan arrows, or
either temperature knob to turn the system on.
C(Mode):Press this button to manually select
the air delivery mode to the oor, instrument panel,
or windshield outlets. The system will stay in the
selected mode until the mode button is pressed
again or the AUTO button is pressed.
Driver’s Side Temperature Knob:Turn this knob
clockwise or counterclockwise to raise or lower
the temperature on the driver’s side of the vehicle.
The display will show the temperature setting
decreasing or increasing and an arrow pointing
toward the driver. This knob can also adjust
the passenger’s side temperature setting if the
two are linked.
Passenger’s Side Temperature Knob:Turn this
knob clockwise or counterclockwise to manually
raise or lower the temperature on the passenger’s
side of the vehicle. The display will show the
temperature setting decreasing or increasing
and an arrow pointing toward the passenger.
The passenger’s temperature setting can be
set to match and link to the driver’s temperature
setting by pressing and holding the AUTO
button for three seconds. When adjusting
the driver’s side temperature setting, the
passenger’s side temperature setting will follow
and both arrows will appear on the display.
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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.
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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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