2004 GMC ENVOY XUV climate control

Temperature Control
Driver's Side: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: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 0ÉF (-18ÉC) or lower,
use the engine coolant heater, if equipped, 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 the air inside
of your 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.
3-21

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

You may notice a slight change in engine performance
when the air-conditioning compressor shuts off and
turns on again. This is normal.
A/C OFF (Air Conditioning Off):When you turn the
air conditioning off, the words ªA/C OFFº will appear on
the display. When the air conditioning is selected or
in AUTO mode, the system will run the air conditioning
automatically.
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. 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 40ÉF (4ÉC) 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
The rear window defogger uses a warming grid to
remove fog from the rear window.
<(Rear):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 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.
Notice:Using a razor blade or sharp object to clear
the inside rear window may damage the rear
window defogger. Repairs would not be covered by
your warranty. Do not clear the inside of the rear
window with sharp objects.
3-26

Rear Climate Control System
Your vehicle has one of the following rear climate
control systems. With either system, the rear climate
controls will be disabled when the front climate control
system is in defrost. This occurs to provide maximum
air¯ow to clear the windshield.
The temperature of the air coming through the rear
outlets is determined by the front passenger's
temperature setting. Press the PWR button to turn the
rear climate controls on and off. Use the mode knob
to change the direction of air¯ow (upper, bi-level or ¯oor)
to the rear seat area.If your vehicle has the rear seat audio system, the lower
buttons are used to adjust the rear seat climate
controls. The temperature of the air coming through the
rear outlets is determined by the front passenger's
temperature setting.
If the front climate control is on and not in defrost mode,
the rear climate control can be enabled by pressing
the lower power button (center button) on the control
face. If the front is off or is in defrost mode, the
rear climate control will ¯ash ªOFFº if the power button
is pressed, indicating the function is unavailable at
this point.
The fan speed is controlled by the fan speed toggle
button. The mode button, on the right, controls where
the air is vented.
3-28

Outlet Adjustment
Your vehicle may have rear seat outlets that can be
used to adjust the air¯ow toward either seating area, the
¯oor or upward. Move the control in the center of
each outlet in any direction to direct air¯ow.
Climate Controls Personalization
If your vehicle is equipped with the Driver Information
Center (DIC), you can store and recall the climate
control settings for temperature, air delivery mode and
fan speed for two different drivers. The personal
choice settings recalled are determined by the
transmitter used to enter the vehicle. After the button
with the unlock symbol on a remote keyless entry
transmitter is pressed, the climate control will adjust to
the last settings of the identi®ed driver. The settings
can also be changed by pressing one of the memory
buttons (1 or 2) located on the driver's door. When
adjustments are made, the new settings are
automatically saved for the driver.
3-29

Driving with a Trailer
{CAUTION:
If you have a rear-most window open and you
pull a trailer with your vehicle, carbon
monoxide (CO) could come into your vehicle.
You can not see or smell CO. It can cause
unconsciousness or death. See
Engine
Exhaust on page 2-39
. To maximize your safety
when towing a trailer:
·Have your exhaust system inspected for
leaks, and make necessary repairs before
starting on your trip.
·Keep the rear-most windows closed.
·If exhaust does come into your vehicle
through a window in the rear or another
opening, drive with your front, main
heating or cooling system on and with the
fan on any speed. This will bring fresh,
outside air into your vehicle. Do not use
the climate control setting for maximum air
because it only recirculates the air inside
your vehicle. See
Dual Climate Control
System on page 3-20.Towing a trailer requires a certain amount of experience.
Before setting out for the open road, you'll want to get
to know your rig. Acquaint yourself with the feel of
handling and braking with the added weight of the trailer.
And always keep in mind that the vehicle you are
driving is now a good deal longer and not nearly as
responsive as your vehicle is by itself.
Before you start, check all trailer hitch parts and
attachments, safety chains, electrical connection, lamps,
tires and mirror adjustment. If the trailer has electric
brakes, start your vehicle and trailer moving and then
apply the trailer brake controller by hand to be sure
the brakes are working. This lets you check your
electrical connection at the same time.
During your trip, check occasionally to be sure that the
load is secure, and that the lamps and any trailer
brakes are still working.
4-62

Uniform Tire Quality Grading
Quality grades can be found where applicable on the
tire sidewall between tread shoulder and maximum
section width. For example:
Treadwear 200 Traction AA Temperature A
The following information relates to the system
developed by the United States National Highway
Traffic Safety Administration, which grades tires by
treadwear, traction and temperature performance. (This
applies only to vehicles sold in the United States.)
The grades are molded on the sidewalls of most
passenger car tires. The Uniform Tire Quality Grading
system does not apply to deep tread, winter-type
snow tires, space-saver or temporary use spare tires,
tires with nominal rim diameters of 10 to 12 inches
(25 to 30 cm), or to some limited-production tires.
While the tires available on General Motors passenger
cars and light trucks may vary with respect to these
grades, they must also conform to federal safety
requirements and additional General Motors Tire
Performance Criteria (TPC) standards.
Treadwear
The treadwear grade is a comparative rating based on
the wear rate of the tire when tested under controlled
conditions on a speci®ed government test course.
For example, a tire graded 150 would wear one and
a half (1.5) times as well on the government course as
a tire graded 100. The relative performance of tires
depends upon the actual conditions of their use,
however, and may depart signi®cantly from the norm
due to variations in driving habits, service practices and
differences in road characteristics and climate.
Traction ± AA, A, B, C
The traction grades, from highest to lowest, are AA, A,
B, and C. Those grades represent the tire's ability
to stop on wet pavement as measured under controlled
conditions on speci®ed government test surfaces of
asphalt and concrete. A tire marked C may have poor
traction performance. Warning: The traction grade
assigned to this tire is based on straight-ahead braking
traction tests, and does not include acceleration,
cornering, hydroplaning, or peak traction characteristics.
5-65

Charging System Light....................................3-35
Check
Engine Light...............................................3-38
Gages Warning Light...................................3-44
CHECK WASHER FLUID.................................3-57
Checking Brake Fluid......................................5-38
Checking Coolant............................................5-25
Checking Engine Oil........................................5-15
Checking Things Under the Hood......................5-10
Checking Your Restraint Systems......................1-60
Chemical Paint Spotting...................................5-90
Child Restraints
Child Restraint Systems...............................1-35
Infants and Young Children...........................1-31
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-40
Older Children.............................................1-29
Securing a Child Restraint Designed for the
LATCH System........................................1-43
Securing a Child Restraint in a Rear Outside
Seat Position...........................................1-44
Securing a Child Restraint in the Center
Seat Position...........................................1-46
Securing a Child Restraint in the Right
Front Seat Position...................................1-47
Top Strap...................................................1-38
Top Strap Anchor Location............................1-40
Where to Put the Restraint...........................1-38Chime Level Adjustment.................................3-121
Cigarette Lighter.............................................3-19
Cleaning
Inside of Your Vehicle..................................5-84
Outside of Your Vehicle................................5-87
Underbody Maintenance...............................5-90
Video Screen............................................3-121
Weatherstrips..............................................5-87
Cleaning Aluminum Wheels..............................5-89
Cleaning Exterior Lamps/Lenses.......................5-88
Cleaning Fabric/Carpet....................................5-84
Cleaning Glass Surfaces..................................5-86
Cleaning Interior Plastic Components.................5-86
Cleaning Leather............................................5-86
Cleaning the Top of the Instrument Panel...........5-86
Cleaning the Windshield, Backglass and Wiper
Blades.......................................................5-88
Cleaning Tires................................................5-89
Cleaning Vinyl................................................5-85
CLEAR ROOF OBSTRUCTION.........................3-59
Climate Control System
Climate Controls Personalization....................3-29
Dual..........................................................3-20
Dual Automatic............................................3-23
Rear..........................................................3-28
CLOSE OR OPEN THE ROOF.........................3-59
CLOSE THE ROOF........................................3-59
CLOSE THE TAILGATE...................................3-60
3