2004 GMC YUKON DENALI lock

Climate Controls
Dual Automatic Climate Control
System
With this system, you can control the heating, cooling
and ventilation in your vehicle. Your vehicle also
has a ¯ow-through ventilation system described later in
this section.
You can select different climate 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 ¯ow through the system as the vehicle
is moving forward unless it is set to recirculation mode.
See ªRecirculationº 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 ¯ow through the
system as the vehicle is moving forward unless it is
set to recirculation mode. See ªRecirculationº later in this
section.
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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.
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 ®ve 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 ®ve
seconds. To make the passenger's temperature the
same as the driver's press and hold the AUTO
button for about 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 about
40ÉF (4ÉC). 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.
2. Set the driver's and passenger's temperature.
To ®nd your comfort setting, start with a 74ÉF (23ÉC)
temperature setting and allow about 20 minutes
for the system to regulate. Turn the driver's or
passenger's side temperature knob to adjust the
temperature setting as necessary. If you choose the
temperature setting of 60ÉF (15ÉC) the system
will remain at the maximum cooling setting. If you
choose the temperature setting of 90ÉF (32ÉC)
the system will remain at the maximum heat setting.
Choosing either maximum setting will not cause
the vehicle to heat or cool any faster.
Be careful not to cover the sensor located on the
top of the instrument panel near the windshield. This
sensor regulates air temperature based on sun
load, and also turns on your headlamps.
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9(Fan):To adjust the air¯ow 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 ªAuto Modeº later in this
section for more information on using this feature.
ÉF (ÉC):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 66ÉF (19ÉC) or clockwise toward 82ÉF (27ÉC).
To regulate the air¯ow direction, adjust the right knob on
the control panel. Turn the knob clockwise for ¯oor
vent air¯ow or counterclockwise for headliner vent
air¯ow. Generally, the upper vents are used for air
conditioning and the ¯oor vents for heating. The knob
can be set to any blend setting. Choose AUTO if
you want the system to automatically regulate the
air¯ow. See ªAuto Modeº 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.The rear seat controls have the following settings:
O(On/Off):Press this button to turn the rear seat
comfort controls on or off when the front overhead
control is set to AUX.
%(Mode):Press this button to select the air delivery
mode and AUTO mode. Choose AUTO if you want
the system to automatically regulate the air¯ow.
See ªAuto Modeº later in this section for more
information on using this feature.Rear Controls
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b(Temperature):Press this button up or down to
increase or decrease the temperature setting.
w9x(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 ªAuto Modeº later in this
section for more information on using this feature.
AUTO Mode
When using the system in auto mode, ®nd your comfort
setting by placing the temperature control to 74ÉF
(23ÉC) and allowing about 20 minutes for the system to
regulate. Then adjust the temperature setting as
necessary. If you choose full cold 60É F (15ÉC), the
system will remain at the maximum cooling setting.
If you choose full hot 90 F (32ÉC), 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 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 that driver.
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This light should come on brie¯y when you turn the
ignition key to RUN. If it doesn't come on then, have it
®xed so it will be ready to warn you if there's a
problem.
If the light comes on while you are driving, pull off the
road and stop carefully. You may notice that the pedal is
harder to push. Or, the pedal may go closer to the
¯oor. It may take longer to stop. If the light is still on,
have the vehicle towed for service. See
Towing
Your Vehicle on page 4-44.
{CAUTION:
Your brake system may not be working
properly if the brake system warning light is
on. Driving with the brake system warning light
on can lead to an accident. If the light is still
on after you have pulled off the road and
stopped carefully, have the vehicle towed for
service.
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. If the light doesn't come on then, have it
®xed so it will be ready to warn you if there is a
problem. United States
Canada
3-37

If the light stays on, or comes on when you're driving,
your vehicle needs service. You will also hear a chime
sound when the light is on steady. 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. In
addition to both lights, you will also hear a chime sound
on the ®rst occurrence of a problem and each time the
vehicle is shut off and then restarted. See
Brake System
Warning Light on page 3-36.
Traction Off Light
If you have the
Stabilitrakžsystem, this
light should come on brie¯y
when you turn the
ignition to RUN.
If the light doesn't come on then, the system may
require service; have it ®xed so it will be there to warn
you if the system is turned off.
For more information on the traction off light, see
StabilitrakžSystem on page 4-9.
Engine Coolant Temperature Gage
This gage shows the engine coolant temperature.
It also provides an indicator of how hard your vehicle is
working. During a majority of the operation, the gage
will read 210ÉF (100ÉC) or less. If you are pulling a load
or going up hills, it is normal for the temperature to
¯uctuate and approach the 250ÉF (122ÉC) mark. If the
gage reaches the 260ÉF (125ÉC) mark, it indicates
that the cooling system is working beyond its capacity.
See
Engine Overheating on page 5-25.
United StatesCanada
3-38

Security Light
This light will come on
brie¯y when you turn the
key toward START.
The light will stay on until
the engine starts.
If the light ¯ashes, the Passlock
žsystem has entered a
tamper mode. If the vehicle fails to start, seePasslockž
on page 2-18.
If the light comes on continuously while driving and
stays on, there may be a problem with the Passlock
ž
system. Your vehicle will not be protected by Passlockž,
and you should see your dealer.
Also, see
Content Theft-Deterrent on page 2-16for
additional information regarding the security light.
Cruise Control Light
The cruise light comes on
whenever you set your
cruise control. See
Cruise
ControlunderTurn
Signal/Multifunction Lever
on page 3-7
.
Tow/Haul Mode Light
This light is displayed
when the Tow/Haul mode
has been activated.
For more information, see
Towing a Trailer on
page 4-51.
3-44

The DIC does not replace the need to maintain your
vehicle as recommended in the Maintenance Schedule
in this manual. Also, the oil change reminder will not
detect dusty conditions or engine malfunctions that may
affect the oil. Also, the oil change reminder does not
measure how much oil you have in your engine. So, be
sure to check your oil level often. See
Engine Oil on
page 5-13.
Personalization Button
You can program certain features to a preferred setting
for up to two people. Press the personalization button
to scroll through the following personalization features.
All of the personalization options may not be available
on your vehicle. Only the options available will be
displayed on your DIC.
If your vehicle is not equipped with the DIC steering
wheel buttons you will not have any of the following
personalization options except for DISPLAY
LANGUAGE. See DISPLAY LANGUAGE later in this
section for more information.
·AUTOMATIC LOCKING
·AUTOMATIC UNLOCKING
·DELAYED LOCKING
·REMOTE LOCK FEEDBACK
·ALARM WARNING TYPE
·REMOTE UNLOCK FEEDBACK
·HEADLAMPS ON AT EXIT
·PERIMETER LIGHTING
·SEAT POSITION RECALL
·EASY EXIT DRIVER SEAT
·CURB VIEW ASSIST
·DISPLAY LANGUAGE
·DISPLAY UNITS (ENG/MET)
The default options for the above features were set
when your vehicle left the factory. The default options
are noted in the text following, but may have been
changed from their default state since then.
The driver's preferences can be recalled by pressing the
unlock button on the remote keyless entry transmitter
labeled 1 or 2 or by pressing the appropriate memory
button 1 or 2 located on the driver's door.
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