2009 GMC ENVOY climate control

Ashtray(s) and Cigarette Lighter
For vehicles with this feature, the ashtray is removable
and ts into the front cupholder.
Notice:If papers, pins, or other ammable items
are put in the ashtray, hot cigarettes or other
smoking materials could ignite them and possibly
damage the 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 the heating, cooling, and ventilation
can be controlled for the vehicle.
A. Fan Control
B. Driver and Passenger
Temperature Controls
C. Air Delivery Mode
ControlD. Recirculation
E. Air Conditioning
F. Rear Window
Defogger
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Dual Automatic Climate Control
System
With this system the heating, cooling and ventilation can
be controlled on the vehicle. When the vehicle is rst
started and the climate control system is on, or if
the climate control system has been turned on, the
display shows the driver’s temperature setting for
ve seconds. Then it shows the outside temperature.
A. Driver and Passenger
Side Temperature
Controls
B. Fan Control
C. Display
D. AUTO
E. Power ButtonF. Recirculation
G. Air Conditioning
H. Defrost
I. Air Delivery Mode
Control
J. Rear Window
Defogger
Outside Air Temperature Display
A new outside temperature reading is displayed if
the vehicle has been off for more than three hours.
If the vehicle has been off for less than three hours,
the old temperature reading may be displayed because
underhood heat is affecting the true outside temperature.
Underhood heat can also affect the outside temperature
while the engine is running. It may also take several
minutes of driving before the display updates to
the actual outside temperature.
Automatic Operation
AUTO (Automatic):When automatic operation is
active, the system controls the air delivery mode,
fan speed, and temperature inside the vehicle.
Use the steps below to place the entire system in
automatic mode:
1. Press AUTO.
When AUTO is selected, the air conditioning
and air inlet are automatically controlled. The air
conditioning compressor will run continuously when
the outside temperature is over approximately
40°F (4°C). The air inlet will normally be set
to outside air. If it is hot outside, the air inlet
automatically changes to recirculate inside air to
help quickly cool down the vehicle.
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2. Set the driver’s and passenger’s temperature.
To nd your comfort setting, start with a 72°F (22°C)
temperature setting and allow about 20 minutes
for the system to adjust. Turn the driver or
passenger side temperature knob to adjust the
temperature setting as necessary. If a temperature
setting of 60°F (15°C) is chosen, the system will
remain at the maximum cooling setting. If a
temperature setting of 90°F (32°C) is chosen, the
system remains at the maximum heat setting.
Choosing either maximum setting may not cause
the vehicle to heat or cool any faster.
Manual Operation
9(Off):Press to turn off the entire climate control
system. Outside air still enters the vehicle, and will be
directed to the oor. The system turns on by pressing
either AUTO, air delivery mode, fan control, or by
adjusting either temperature knob.
Driver’s Side Temperature Knob:Turn clockwise
or counterclockwise to increase or decrease the
temperature on the driver 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 side
temperature setting if the two are linked.Passenger Side Temperature Knob:Turn clockwise
or counterclockwise to increase or decrease the
temperature on the passenger side of the vehicle.
The display will show the temperature setting
decreasing or increasing and an arrow pointing toward
the passenger. The passenger 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 side
temperature setting, the passenger side temperature
setting will follow and both arrows will appear on
the display. The passenger side temperature setting
also resets and re-links to the driver side temperature
setting if the vehicle has been off for more than
three hours.
w9x(Fan Control):Press the arrows to increase
or decrease the fan speed. The display shows the
selected fan speed and the driver side temperature
setting for ve seconds.
C(Air Delivery Mode Control):Press to change the
direction of the airow in the vehicle. The air delivery
modes will appear on the display as it is being adjusted.
The display shows the selected air delivery mode and
the driver temperature setting for ve seconds.
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Outlet Adjustment
Use the air outlets located in the center and on the side
of the instrument panel to direct the airow. Use the
thumbwheels near the air outlets to open or close off the
airow.
Operation Tips

Clear away any ice, snow, or leaves from air inlets
at the base of the windshield that could block the
ow of air into the vehicle.
Keep the path under the front seats clear of objects
to help circulate the air inside of the vehicle more
effectively.
Use of non-GM approved hood deectors can
adversely affect the performance of the system.
Check with your dealer/retailer before adding
equipment to the outside of the vehicle.
Rear Climate Control System
The 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.A. Power Button
B. Air Delivery Mode Control
The temperature of the air coming through the rear outlets
is determined by the front passenger temperature setting.
PWR (Power):Press to turn the rear climate controls
on or off.
Air Delivery Mode Control:Turn clockwise or
counterclockwise to change the direction of the airow
to the rear seat area.
H(Panel):Air is directed to the rear console outlets.
)(Bi-level):Air is directed to the second seat
side oor outlets and the rear console outlets.
6(Floor):Air is directed to the second seat side oor
outlets.
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A. Fan Control
B. Power Button
C. Air Delivery Mode Control
If the 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 temperature setting.
P(On/Off):Press to turn the rear climate controls on
or off.
z9y(Fan Control):Press to increase or decrease
the fan speed.
z\y(Air Delivery Mode Control):Press to
change the direction of airow (panel, bi-level or oor)
to the rear seat area.
The rear control only turns on if the front climate control
system is on and not in defrost mode.
Warning Lights, Gages, and
Indicators
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 prevent injury.
Warning lights come on when there may be or is a
problem with one of the vehicle’s functions. Some
warning lights come on briey when the engine is started
to indicate they are working.
Gages can indicate when there may be or is a problem
with one of the vehicle’s functions. Often gages and
warning lights work together to indicate a problem with
the vehicle.
When one of the warning lights comes on and stays on
while driving, or when one of the gages shows there
may be a problem, check the section that explains
what to do. Follow this manual’s advice. Waiting to do
repairs can be costly and even dangerous.
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CAUTION: (Continued)

Open a window about two inches (5 cm) on
the side of the vehicle that is away from the
wind to bring in fresh air.
Fully open the air outlets on or under the
instrument panel.
Adjust the Climate Control system to a setting
that circulates the air inside the vehicle and
set the fan speed to the highest setting. See
Climate Control System in the Index.
For more information about carbon monoxide, see
Engine Exhaust on page 2-37.
Snow can trap exhaust gases under your vehicle.
This can cause deadly CO (carbon monoxide) gas
to get inside. CO could overcome you and kill you.
You cannot see it or smell it, so you might not
know it is in your vehicle. Clear away snow from
around the base of your vehicle, especially any
that is blocking the exhaust.Run the engine for short periods only as needed to
keep warm, but be careful.
To save fuel, run the engine for only short periods as
needed to warm the vehicle and then shut the engine
off and close the window most of the way to save heat.
Repeat this until help arrives but only when you feel
really uncomfortable from the cold. Moving about
to keep warm also helps.
If it takes some time for help to arrive, now and then when
you run the engine, push the accelerator pedal slightly so
the engine runs faster than the idle speed. This keeps the
battery charged to restart the vehicle and to signal for
help with the headlamps. Do this as little as possible to
save fuel.
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Driving with a Trailer
{CAUTION:
When towing a trailer, exhaust gases may collect
at the rear of the vehicle and enter if the liftgate,
trunk/hatch, or rear-most window is open.
Engine exhaust contains carbon monoxide (CO)
which cannot be seen or smelled. It can cause
unconsciousness and even death.
To maximize safety when towing a trailer:
Have the exhaust system inspected for leaks
and make necessary repairs before starting
a trip.
Never drive with the liftgate, trunk/hatch, or
rear-most window open.
Fully open the air outlets on or under the
instrument panel.
Adjust the Climate Control system to a setting
that brings in only outside air and set the fan
speed to the highest setting. See Climate
Control System in the Index.
For more information about carbon monoxide, see
Engine Exhaust on page 2-37.Towing a trailer requires a certain amount of experience.
Get to know the rig before setting out for the open road.
Get acquainted 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 longer and not as
responsive as the vehicle is by itself.
Before starting, check all trailer hitch parts and
attachments, safety chains, electrical connectors, lamps,
tires and mirror adjustments. If the trailer has electric
brakes, start the vehicle and trailer moving and then
apply the trailer brake controller by hand to be sure the
brakes are working. This checks the electrical connection
at the same time.
During the trip, check occasionally to be sure that the
load is secure, and that the lamps and any trailer brakes
are still working.
Following Distance
Stay at least twice as far behind the vehicle ahead as
you would when driving the vehicle without a trailer.
This can help to avoid situations that require heavy
braking and sudden turns.
Passing
More passing distance is needed when towing a trailer.
Because the rig is longer, it is necessary to go much
farther beyond the passed vehicle before returning to
the lane.
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Treadwear
The treadwear grade is a comparative rating based
on the wear rate of the tire when tested under
controlled conditions on a specied 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 signicantly 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 specied 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.
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