2003 GMC YUKON DENALI climate settings

Climate Controls
Electronic Climate Control System
With this system, you can control the heating, cooling
and ventilation in your vehicle. Your vehicle also
has a flow-through ventilation system described later in
this section.
You can select different comfort control settings for the
driver and passengers.
Driver’s Side Temperature Knob
The driver’s side knob is used to adjust the temperature
of the air coming through the system on the driver’s
side. The temperature can be adjusted even if the
system is turned off. This is possible since outside air
will always
flow through the system as the vehicle
is moving forward unless it is set
to recirculation mode.
See “Recirculation” later in this section.
Turn the knob counterclockwise or clockwise
to lower or
increase the cabin temperature. The display will show
the temperature setting decreasing or increasing and an
arrow pointing
to the driver will be displayed under
and
to the left of the temperature setting.
Passenger’s Side Temperature Knob
The passenger’s side knob can be used to change the
temperature of the air coming through the system
on the passenger’s side
of the vehicle. The temperature
can be adjusted even
if the system is turned off. This
is possible since outside air will always flow through the
system as the vehicle is moving forward unless
it is
set
to recirculation mode. See “Recirculation later” in
this section.
3-1 9

Turn the knob counterclockwise or clockwise to lower or
increase the cabin temperature. The display will show
the temperature setting decreasing or increasing and an
arrow pointing
to the passenger will be displayed
under and
to the right of the temperature setting.
The passenger’s temperature setting can be set
to
match the driver’s temperature setting by pressing and
holding the AUTO button for four seconds. Both the
driver and passenger arrows will be displayed.
Automatic Operation
AUTO (Automatic): When automatic operation is
active the system will control the inside temperature, the
air delivery, and the fan speed.
0 (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 floor. This direction can
be changed by pressing the mode button. The
temperature can also be adjusted using either
temperature knob. Press the up or down arrows on the
fan switch, the defrost button, the AUTO button, or
the air conditioning button
to turn the system on when it
is off.
Use the steps below to place the entire system in
automatic mode:
1. Press the AUTO button.
When AUTO is selected, the display will change
to
show the current driver’s set temperature, delivery
mode and fan speed. Press the AUTO button again
within five seconds
to display the passenger’s set
temperature.
If the driver and passenger’s temperature settings
are not the same, the opposite side temperature
setting will be displayed for an additional five
seconds. To make the passenger’s temperature the
same as the driver’s press and hold the AUTO
button for approximately four seconds.
When auto is selected, the air conditioning operation
and air inlet will be automatically controlled. The
air conditioning compressor will run when the
outside temperature is over approximately
40°F
(4°C). The air inlet will normally be set to outside air.
If it’s hot outside, the air inlet may automatically
switch
to recirculate inside air to help quickly cool
down your vehicle. The light on the button will
illuminate in recirculation.
3-20

AUX: Turn the knob, located on the left side of the
control panel, to this position
to allow the rear seat
passengers
to have control over the rear climate control
system. See “Rear Passenger Console Control’’ later
for more information.
0 (Off): Turn the knob, located on the left side of the
control panel,
to this position to turn the rear climate
control system
off.
@ (Fan): To adjust the airflow speed, turn the fan
knob located on the left side of the control panel
to the
desired setting. Choose AUTO
if you want the system
to automatically choose the fan speed to maintain
a selected temperature. See “Auto Mode” later in this
section for more information on using this feature.
“F (“C): To adjust the air temperature, turn the
temperature knob on the center of the control panel. For
cooler or warmer air turn the knob counterclockwise
toward
66°F (1 9°C) or clockwise toward 82°F (27°C).
To regulate the airflow direction, adjust the right knob on
the control panel. Turn the knob clockwise for floor
vent airflow or counterclockwise for headliner vent
airflow. Generally, the upper vents are used for air
conditioning and the floor vents for heating. The knob
can be set
to any blend setting. Choose AUTO if
you want the system to automatically regulate the
airflow. See “Auto Mode” later in this section for more
information on using this feature.
Rear Passenger Console Control
To control the rear climate control from the rear
passenger seat position, use the rear passenger console
control. The driver overhead control fan knob must be
set
to the AUX position.
Rear Controls
The rear seat controls have the following settings:
0 (OnIOff): Press this button to turn the rear seat
Comfort controls on or
off when the front overhead
control is set
to AUX.
3-26

r5;’ (Mode): Press this button to select the air delivery
mode and AUTO mode. Choose AUTO
if you want
the system
to automatically regulate the airflow.
See
“Auto Mode” later in this section for more
information on using this feature.
(Temperature): Press this button up or down to
increase or decrease the temperature setting.
A @ 7 (Fan): Press this button up or down to adjust
the fan speed. Choose AUTO
if you want the system
to automatically choose the fan speed to maintain
a selected temperature. See “Auto Mode” later in this
section for more information on using this feature.
AUTO Mode
When using the system in auto mode, find your comfort
setting by placing the temperature control
to 74°F
(23°C) and allowing about 20 minutes for the system to
regulate. Then adjust the temperature setting as
necessary. If you choose full cold
60” F (15”C), the
system will remain at the maximum cooling setting.
If you choose full hot 90 F (32”C), the system will remain
at the maximum heat setting.
Climate Controls Personalization
You can store and recall the climate control settings for
temperature, air delivery mode and fan speed for
two different
drivers. The personal ch~i~e 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 identified 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 that driver.
3-27