2004 GMC ENVOY XUV heating

Midgate
{CAUTION:
It can be dangerous to drive with the cargo
area covered and the tailgate and the midgate
open because carbon monoxide (CO) gas can
come into your vehicle. You can not see or
smell CO. It can cause unconsciousness and
even death. If you must drive with the tailgate
and midgate open or if electrical wiring or
other cable connections must pass through
the seal between the body and the midgate:
·Make sure all windows are shut.
·Turn the fan on your heating or cooling
system to its highest speed with the
setting on OUTSIDE AIR. That will force
outside air into your vehicle. See
Dual
Climate Control System on page 3-20.
·If you have air outlets on or under the
instrument panel, open them all the way.
See
Engine Exhaust on page 2-39.
Midgate
Your vehicle is equipped with a midgate and power
midgate glass. The midgate allows you to extend the
length of your vehicle's cargo area.
Lowering the Midgate
The midgate can be lowered to allow the cargo area of
your vehicle to extend into the cab. The midgate
cannot be lowered when the glass is up.
To lower the midgate, do the following:
1. Fold and tumble the rear seats. The front seats
might have to be moved forward slightly to allow
the rear seats to fold and tumble. See
Rear
Seat Operation on page 1-7for more information.
2.
C:Press this overhead console button to lower
the midgate glass with the key in the ignition.
The midgate can be lowered without the key in the
ignition if the midgate glass is already down.
3. Clip the second row seat belts into the retainers.
They are mounted on the pillars below where the
seat belt passes through the trim panel. This
prevents the seat belt from being tangled in the
midgate when opening or closing the midgate.
2-12

Accessory Power Outlets
Your vehicle may have accessory power outlets. With
the accessory power outlets, you can plug in auxiliary
electrical equipment such as a cellular telephone or
CB radio.
The ®rst outlet is located to the right of the cigarette
lighter on the instrument panel. The second outlet
is located on the rear of the center 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. Check with your
dealer 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.
Ashtrays and Cigarette Lighter
Your vehicle may have this feature. The ashtray is
removable and ®ts into the front cupholder.
Notice:If you put papers 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's 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.
3-19

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 will still enter the
vehicle, and will be 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 air¯ow inside of your vehicle.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.
h(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 blend or defrost mode and increase
fan speed. Recirculation mode shuts off when the
engine is turned off.
3-20

Rear Window Defogger
The lines you see on the rear window warm the glass.
Press this button to turn the rear window defogger on or
off. The rear window defogger can only be activated if
the tailgate window is fully closed. The Driver
Information Center will display ªTailgate Glass Downº to
indicate that the rear window defogger has been
disabled because the window is not fully closed. 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 is equipped with heated mirrors, this
button will activate them.
Notice:Don't use anything sharp on the inside of
the rear window. If you do, you could cut or damage
the warming grid, and the repairs wouldn't be
covered by your warranty. Do not attach a temporary
vehicle license, tape, a decal or anything similar
to the defogger grid.
Outlet Adjustment
Use the air outlets located in the center and on the side
of your instrument panel to direct the air¯ow.
Ventilation System
For mild outside temperatures when little heating or
cooling is needed, use the vent setting to direct outside
air through your vehicle.
Your vehicle's ventilation system supplies outside air to
the inside of your vehicle when it is moving. With the
side windows closed, air will ¯ow into the front air inlet
grilles, through the vehicle and out the air exhaust
valves.
Outside air will also enter the vehicle when the heater
or the air conditioning is running, unless you have
selected recirculation mode.
3-22

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 far better, reducing
the chance of fogging the inside of your windows.
·When you enter a vehicle in cold weather, turn the
fan knob all the way to the right 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 window.
·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 your
vehicle, such as hood-air de¯ectors, may affect the
performance of the heating and air conditioning
system. Check with your dealer before adding
equipment to the outside of your vehicle.
Dual Automatic Climate Control
System
Your vehicle may have the 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.
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.
3-23

Outlet Adjustment
Use the air outlets located in the center and on the side
of your instrument panel to direct the air¯ow.
Ventilation System
For mild outside temperatures when little heating or
cooling is needed, use the vent setting to direct outside
air through your vehicle.
Your vehicle's ventilation system supplies outside air to
the inside of your vehicle when it is moving. With the
side windows closed, air will ¯ow into the front air inlet
grilles, through the vehicle and out the air exhaust
valves.
Outside air will also enter the vehicle when the heater
or the air conditioning compressor is running, unless you
have pressed the recirculation button.
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 far better, reducing
the chance of fogging the inside of your windows.
·When you enter a vehicle in cold weather, turn the
fan knob all the way to the right 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 window.
·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 your
vehicle, such as hood-air de¯ectors, may affect the
performance of the heating and air conditioning
system. Check with your dealer before adding
equipment to the outside of your vehicle.
3-27

Anti-Lock Brake System Warning
Light
With the anti-lock brake
system, this light will come
on when you start your
engine and may stay on for
several seconds. That's
normal. A chime may also
sound when the light
comes on.
If the light stays on, or comes on when you're driving,
your vehicle needs service. If the regular brake
system warning light isn't on, you still have brakes, but
you don't have anti-lock brakes. If the regular brake
system warning light is also on, you don't have anti-lock
brakes and there's a problem with your regular
brakes. See
Brake System Warning Light on page 3-36earlier in this section.
The anti-lock brake system warning light should come
on brie¯y when you turn the ignition key to RUN. If
the light doesn't come on then, have it ®xed so it will be
ready to warn you if there is a problem.
Engine Coolant Temperature Gage
This gage shows the engine coolant temperature. If the
gage pointer moves into the red area, it means that
your engine coolant has overheated. If you have been
operating your vehicle under normal driving conditions,
you should pull off the road, stop your vehicle and
turn off the engine as soon as possible.
See
Engine Overheating on page 5-26for more
information.
United StatesCanada
3-37

DIC Warnings and Messages
Warning messages are displayed on the DIC to notify
the driver that the status of the vehicle has changed and
that some action may be needed by the driver to
correct the condition. More than one message may
appear at one time. They will appear one behind
the other. Some messages may not require immediate
action but you should press the trip stem to
acknowledge that you received the message and clear it
from the display. Pressing any of the DIC steering
wheel buttons (Trip Information, Fuel Information,
Personalization or Select button) will also acknowledge
any warnings or service messages. Some messages
cannot be cleared from the display because they
are more urgent. These messages require action before
they can be removed from the DIC display. The
following are the possible messages that can be
displayed and some information about them.
ENGINE COOLANT HOT/ ENGINE
OVERHEATED
If the cooling system temperature gets hot, this message
will appear in the DIC and you will hear a chime.
Refer to the ªEngine Overheatingº section of your
owner's manual for the proper course of action. This
message will clear when the coolant temperature drops
to a safe operating temperature.
OIL PRESSURE LOW/STOP ENGINE
If low oil pressure levels occur, this message will
be displayed on the DIC. Stop the vehicle as soon as
safely possible and do not operate it until the cause
of the low oil pressure has been corrected. Check your
oil as soon as possible and have your vehicle
serviced.
BATTERY NOT CHARGING
If the battery is not charging during operation, this
message will appear on the DIC. Driving with this
problem could drain your battery. Have the electrical
system checked as soon as possible. Pressing the
select button will acknowledge this message and clear it
from the DIC display.
SERVICE AIR BAG
If there is a problem with the air bag system this
message will be displayed on the DIC. Have a quali®ed
technician inspect the system for problems. Pressing
the select button will acknowledge this message
and clear it from the DIC display.
3-56